Development of DC Inverter Scroll Compressor used for Marine Container Refrigeration Unit

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Development of DC Inverter Scroll Compressor used for Marine Container Refrigeration Unit"

Transcription

1 Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2012 Development of DC Inverter Scroll Compressor used for Marine Container Refrigeration Unit Tomomi Yokoyama Katsumi Kato Nobuhiro Nojima Keiji Yoshimura Hiroshi Kitaura Follow this and additional works at: Yokoyama, Tomomi; Kato, Katsumi; Nojima, Nobuhiro; Yoshimura, Keiji; and Kitaura, Hiroshi, "Development of DC Inverter Scroll Compressor used for Marine Container Refrigeration Unit" (2012). International Compressor Engineering Conference. Paper This document has been made available through Purdue e-pubs, a service of the Purdue University Libraries. Please contact for additional information. Complete proceedings may be acquired in print and on CD-ROM directly from the Ray W. Herrick Laboratories at Herrick/Events/orderlit.html

2 1365, Page 1 Development of DC inverter Scroll Compressor used for Marine Container Refrigeration Unit Tomomi YOKOYAMA*, Katsumi KATO, Nobuhiro NOJIMA Keiji YOSHIMURA, Hiroshi KITAURA Daikin Industries, Ltd. Compressor Development and Engineering Group 3-12 chikko-shinmachi, Nishiku, Sakai, Osaka, Japan Tel: , Fax: * Corresponding Author ABSTRACT In recent years, energy saving of a container ship is becoming one of the most important issues from the point of environmental protection of the global marine transportation business. To solve this problem, we have developed a new gas injection inverter scroll compressor for marine container refrigeration unit. The new compressor is based on a conventional scroll compressor, which has been used in various industrial air conditioners for a long time, with some greatly improved technologies. For instance, the efficiency of the compressor is increased by optimizing the gas injection mechanism. On top of this, the efficiency at low speed operation is increased by using interior permanent magnet synchronous motor. As a result, it was possible to achieve higher refrigeration capacity without increasing the size of the new compressor. The energy consumption has decreased by 45% compared to conventional models. This paper describes details about the improvements of the compressor including the gas injection mechanism and the improvements in its performance at low speed operation. 1. INTRODUCTION Environment protection is becoming a more important issue in the maritime industry across the world. In July 2011, CO2 emissions controls have been introduced in the MARPOL Convention. Meanwhile recent increase in oil price is urging container operators to further energy saving throughout the vessel. These efforts to reduce CO2 emissions and operating cost have now been accompanying efforts to reduce energy consumption of marine container refrigeration unit. We have succeeded in meeting these needs by modifying our highly reputed, commercial use models of DC inverter scroll compressors for air conditioning applications, as shown below. 1) Increasing the number of injection port, enlarging the diameter of the injection port and horizontal holes leading to the ports to increase the injection circulation whereby the system s refrigerating capacity can be increased. 2) Using a concentrated-winding reluctance DC motor to reduce energy consumption during energy saving modes which account for the largest proportions of the total operating hours. These modifications could reduce energy consumption by maximum of 45% while reducing also the size and weight of the compressor compared to those for existing marine refrigeration unit. This paper describes our efforts to achieve these performance improvements, weight and size down of marine transportation container refrigeration unit.

3 1365, Page 2 2. STRUCTURE OF COMPRESSOR Figure 1(a) shows a sectional view of a conventional scroll compressor for marine refrigerating containers. Figure 1(b) shows the newly developed compressor. Table.1 shows specifications of these compressors. The conventional compressor has a low-pressure dome that contains the motor. The new compressor has a dome comprising two portions separated by the main bearing frame: one is a low-pressure compartment containing the compressing mechanism, and the other one is a high-pressure compartment containing the motor. The new compressor has a system to cool the compressing mechanism using the refrigerant that enters in the compressor, and cool the motor using the refrigerant gas that delivers from the compressor, which leads to higher volumetric efficiency. The suction volume of the new compressor is 70cc, which is more than 60% less compared with the suction volume of the conventional compressor 188cc. The maximum rotating speed of the new compressor is 130rps and its fixed scroll has a port that is used for injecting refrigerant gas into the compressor. High pressure side Low pressure side Suction pipe Fixed scroll Injection pipe Orbiting scroll Discharge pipe Main bearing Crank shaft Motor (Rotor) Motor (Stator) Sub bearing Oil pick up Low pressure side High pressure side (a) Conventional compressor for marine container (b) Developed compressor for marine container Figure 1: Sectional view of Compressor

4 Table 1: Specifications of compressor for marine container Conventional compressor (with gas injection) Developed compressor (with gas injection) Refrigerant R134a R134a Pressure Structure Low Pressure shell High / Low Pressure shell Cylinder Volume 188 cc 70 cc 1365, Page 3 Power Supply [Rotating speed] Motor type AC(50/60Hz) Induction motor Distributed winding DC Inverter [20 ~ 130rps] Reluctance DC-motor Concentrated winding 3. DESCRIPTION OF THE DEVELOPMENT Some major items which are applied in this newly developed compressor are described below. 3.1 Larger Energy Saving by Improving Refrigerating Capacity and Performance Improve the injection port A refrigerating transport container is required to be cooled to the desired temperature before (or after) it is loaded. This preliminary cooling operation is called a pull down operation. This pull down operation is required to be completed down to the desired temperature as quickly as possible, for which a larger refrigerating capacity is required. This is one of the distinctive requirements for refrigerating transport containers. To increase refrigerating capacity, it is necessary to increase the suction volume of the compressor. However this may lead to a larger size and/or weight, which refrigerating transport containers cannot admit for space limitation. Our approach to addressing these conflicting problems was to modify an air conditioner DC inverter scroll compressor comprising a gas injection system into a machine with larger injection circulation so that the refrigerating capacity can be increased. Figure 2 shows illustrations of the scroll and injection port of a conventional DC inverter scroll compressor for air conditioning applications (a) and newly developed compressor (b). Figure 2 shows the position of the orbiting scroll,(colored area), immediately after the compression space is loaded with gas.

5 1365, Page 4 The conventional DC inverter scroll compressor (a) has one injection port whose size is φ4 while the new compressor (b) has four injection ports whose size has been increased to φ5 so that the injection circulation into the compression space could be increased. Note that the horizontal hole to the injection port was enlarged to an inside diameter of φ7.4 from φ6, when the number of the ports was increased. Suction refrigerant Horizontal holeφ6 Injection refrigerant Injection port (φ4 1) Injection port (φ5 4) Horizontal hole φ7.4 Injection refrigerant Suction refrigerant Orbiting Scroll Colored compression space (a) Conventional compressor for Air conditioner (b) Developed compressor for Marine container Figure 2 Injection Port and Compression space (at the end of suction process about colored compression space) Figure 3 shows the position of the orbiting scroll at which the injection port opening leading to the compression space (colored part) becomes the largest. The conventional compressor (a) has one opening (φ4) leading to the compression space while the new compressor (b) has two full openings (φ5 2) and two partial openings to the compression space. (a) Conventional compressor for Air conditioner (b) Developed compressor for Marine container Figure 3 Injection Port and Compression space (at the maximum opening square shaped by injection port and colored compression space )

6 1365, Page 5 Figure 4 shows, for both the conventional and new compressors, how the sectional area of injection port opening to the compression space changes with the crankshaft rotation angle (deg). The maximum opening area could be increased by 240% compared to the conventional compressor, and the duration, in terms of crank angle range, in which the injection ports are kept open to the compression space could be increased by 1.5 times. Developed (φ5 4) Injection Port Square [cm2] % Conventional (φ4 1) 1.5 Developed (φ5 4) Injection port Square Crankshaft rotation angle [deg] Figure 4 Relationship between the crank shaft rotation angle and the opening square of injection port Colored compression space Figure 5 shows actual measurements of injection circulation of both the conventional DC inverter scroll compressor for air conditioning applications and new compressor for marine container. The operating conditions for these measurements shown in Table 2 represent a pull down operation that needs the compressor to act at the maximum refrigerating capacity. This pull down operation is one of the chilled condition. The new compressor increased injection circulation by 3.5 times as much as the conventional one, which led to increase in refrigerating capacity by 1.33 times and also to making the compressor size smaller. 140% 120% 80% 60% 40% 20% 0% Total refrigerating capacity ratio (suction + injection) Refrigerant mass flow ratio of suction Refrigerant mass flow ratio of injection % (a) Conventional % (b) Developed 46% Figure 5 Increasing ratio of total refrigerating capacity and refrigerant mass flow (suction, injection) Table 2: Test conditions Operation mode Pull down (chilled) Ambient / Box temp [deg] 38/ 2 Condensing temp [deg] 63 Evaporating temp [deg] -10 Rotating speed [rps] 130 subcool = 5deg, superheat = 8deg

7 1365, Page Use a concentrated-winding, reluctance DC motor The conventional scroll compressor for the marine container operates at the constant speed using induction motor. In case of induction motor, the compressor starts and stops its operation to adjust the refrigerating capacity, which is needed to keep the temperature inside the container after its temperature goes down to the desired temperature. Unfortunately such operations tend to be the negative factor from the point of the energy saving. To achieve energy saving, the new compressor controls its rotating speed using the inverter to adjust the refrigerating capacity, not by starting and stopping its operation. Especially for energy saving of the marine container unit, it is prerequisite to improve not just operating efficiency at the pull down operation, but also to improve operating efficiency at the low-middle speed (20-70rps) during the long temperature maintenance operation. To this end, the new compressor uses a concentrated-winding DC reluctance motor. To increase motor efficiency, the motor loss (copper loss and iron loss) must be reduced. To improve the motor efficiency especially at low speed, copper loss must be reduced. To reduce copper loss, we chose a concentrated-winding DC reluctance motor that has been widely used for home air conditioners. The motor can reduce the size of the coil end parts, which leads to reduction in copper loss. Figure 6 shows pictures and major dimensions of a distributed-winding AC motor for conventional scroll compressor for refrigerating container and concentrated-winding reluctance DC motor for the new DC inverter scroll compressor. The former has two poles (88 mm in laminated thickness) while the concentrated-winding stator has six poles and nine slots (90 mm in laminated thickness). The laminated height being unchanged, the outside diameter and total height could be significantly reduced, and the weight could be down to 1/ kg 5.0kg φ190 φ145 (a) AC Induction motor (Distributed Winding stator) (b) Reluctance DC-motor (Concentrated Winding stator) Figure 6 The Dimension and Weight of motor stators Motor efficiency on pull down operation Figure 7 shows comparison in motor torque and efficiency on Table 3 pull down(chilled) test condition. On that test condition, the developed compressor is operated at maximum speed of 130rps and its efficiency is 4.5% higher than the conventional one, which proves that it is effective for energy saving on the pull down condition as well.

8 1365, Page 7 105% 130rps 2 Table 3 Test conditions Motor efficiency ratio 104% 103% 102% Developed (Reluctance DC motor) 4.5 Operation mode Pull down (chilled) Ambient / Box temp[deg] 38 / 2 No. 1 2 Compressor( ) C D 101% 60Hz Conventional (Induction motor) 1 Rotating speed[rps] (AC power frequency) (60) 130 Motor efficiency ratio 104.5% 99% Motor Torque ratio Figure 7 Relationship between the motor torque and the motor efficiency ratio C: Conventional, D: Developed Motor efficiency on energy saving condition Table 4 shows the condition for the conventional and developed compressor on typical energy saving condition (chilled). The stopping ratio on Table.4 is the actual stopping ratio when the compressor of the marine container unit is operated on start and stop condition. The developed compressor is operated with the low rotating speed (30rps). So that the efficiency of motor for the developed compressor must be high. Figure 8 shows comparison in motor torque and its efficiency for the conventional and the developed compressor on the operation condition of Table 4. The motor efficiency for the developed compressor is 1.9% higher than the one for the conventional compressor. And also its energy saving is higher on the energy saving condition. Besides on the condition of Table 4, the stopping ratio for the developed compressor is lower. It is the effect of using the inverter for the developed compressor. Table 4 Test condition Operation mode Energy saving Chilled Ambient / Box temp [deg] 25 / -1 No. 3 4 Compressor ( ) C D Motor torque ratio [-] Rotating speed [rps] (AC power frequency) (60) 30 Compressor stopping ratio [%] Motor efficiency ratio [%] C: Conventional, D: Developed Motor efficiency ratio 103% 102% 101% 99% rps Developed (Reluctance DC motor) 60Hz Conventional (Induction motor) Motor Torque ratio Figure 8 Relationship between the motor torque and the motor efficiency ratio 3

9 1365, Page 8 Figure 9 shows the comparison for input consumption ratio and stopping ratio of conventional and developed compressor on the Table.4 condition. The stopping ratio of the developed compressor is dramatically decreased. So that its input consumption is 66% decreased. 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% Input consumption ratio 52% Conventional 3 compressor stop ratio 66% 37% 34% 15% Developed 4 Figure 9 Relationship between Input consumption ratio and compressor stop ratio at Energy saving operation (chilled) Result of energy saving efforts The developed compressor is operated at the low speed using the inverter and the energy saving becomes higher by decreasing the stopping ratio. Also using the concentrated-winding reluctance DC motor prevents the motor efficiency from going down, which works out on the energy saving. The Figure 10 shows that the hourly input power consumption of the developed marine unit [LX10F] goes down to 55%, compared with the one of the conventional marine unit [LXE10E:~E series].(when the ratio of energy saving operation is 60% on chilled condition and 40% on frozen condition) Input Power consumption ratio 90% 80% 70% 60% 50% 45% 55% 40% Conventional Developed Figure 10 Input power consumption ratio of the developed marine unit

10 1365, Page Size and Weight Figure 11 shows outline views of the conventional and the developed compressor for marine container. Figure 12 shows how much the size and weight could be reduced. The outside diameter of the casing was reduced to 85%. The volume could be reduced to 45%, and the weight could be reduced to 60%. The new, smaller compressor is appropriate for transport refrigeration unit. Weight :71kg (a) Conventional compressor Weight :43kg (b) Developed compressor Figure 11 Outline view and weight of compressor 110% Size and Mass ratio φ200 φ170 15% 90% 80% 70% 60% 50% 102% 85% 55% 40% 60% 40% 30% 45% Height Diameter Volume Weight Figure 12 Size and Weight ratio of the developed to conventional compressor

11 1365, Page CONCLUSIONS The following conclusions are made to a new DC inverter scroll compressor that can meet requirements for reducing energy consumption while reducing its size and weight. (1) The refrigerating capacity of new compressor is increased 1.33 times as much as conventional DC inverter scroll compressor by enlarging the diameter of injection port, increasing the number of injection ports and enlarging the diameter of the horizontal holes leading to the ports. (2) The motor efficiency is increased to 4.5% at chilled pull down condition and 1.9% at chilled energy saving condition by using concentrated winding reluctance DC motor. (3) The compressor input power consumption is decreased by 66% at chilled energy saving condition by optimizing the start and stop operation which is done by inverter. As a result, the hourly input power consumption of the developed marine unit [LX10F] is decreased by 45% compared to conventional marine unit [LXE10E:~E series].( when the ratio of energy saving operation is 60% on chilled condition and 40% on frozen condition) (4) Finally, the overall size and weight of the compressor is reduced by 55% and 40% respectively. REFERENCES Yoshida, Y. et al. 2002, Development of Scroll Compressors with the High Performance used for Marine Container Refrigeration Unit, International Compressor Conference at Purdue, C18-6

Development of Highly Efficient Compressor Series Driven by IPM Motors

Development of Highly Efficient Compressor Series Driven by IPM Motors Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2 Development of Highly Efficient Compressor Series Driven by IPM Motors T. Obitani Daikin

More information

Development of Scroll Compressor for 16HP VRF System

Development of Scroll Compressor for 16HP VRF System Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2014 Development of Scroll Compressor for 16HP VRF System Fumikazu Nagaoka Mitsubishi Electric

More information

Development of High Performance 3D Scroll Compressor

Development of High Performance 3D Scroll Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2006 Development of High Performance 3D Scroll Compressor Taichi Tateishi Mitsubishi Heavy

More information

Development of High Efficiency Swing Compressor for R32 Refrigerant

Development of High Efficiency Swing Compressor for R32 Refrigerant Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2014 Development of High Efficiency Swing Compressor for Refrigerant Yuuichi Yamamoto DAIKIN

More information

Reduction of Oil Discharge for Rolling Piston Compressor Using CO2 Refrigerant

Reduction of Oil Discharge for Rolling Piston Compressor Using CO2 Refrigerant Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2006 Reduction of Oil Discharge for Rolling Piston Compressor Using CO2 Refrigerant Takeshi

More information

Research And Development Of Variable-Speed Scroll Compressor

Research And Development Of Variable-Speed Scroll Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2002 Research And Development Of Variable-Speed Scroll Compressor H. Li Beijing Polytechnic

More information

A Two Stage-Double Acting Scroll Air Compressor

A Two Stage-Double Acting Scroll Air Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1994 A Two Stage-Double Acting Scroll Air Compressor Y. Chang X. Ju D. Wang M. Wang Follow

More information

Developing a Compact Automotive Scroll Compressor

Developing a Compact Automotive Scroll Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2008 Developing a Compact Automotive Scroll Compressor Fengshou Yi Nanjing Aotecar Refrigeration

More information

Development of a Low Noise Rotary Compressor

Development of a Low Noise Rotary Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1996 Development of a Low Noise Rotary Compressor Y. Adachi Toshiba Corporation I. Onoda

More information

New Capacity Modulation Algorithm for Linear Compressor

New Capacity Modulation Algorithm for Linear Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 010 New Capacity Modulation Algorithm for Linear Compressor Jaeyoo Yoo Sungho Park Hyuk

More information

CFD Analysis of Oil Discharge Rate in Rotary Compressor

CFD Analysis of Oil Discharge Rate in Rotary Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering CFD Analysis of Oil Discharge Rate in Rotary Compressor Liying Deng haitunsai@.com Shebing

More information

Numerical Simulation and Performance Analysis of Rotary Vane Compressors for Automobile Air Conditioner

Numerical Simulation and Performance Analysis of Rotary Vane Compressors for Automobile Air Conditioner Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 24 Numerical Simulation and Performance Analysis of Rotary Vane Compressors for Automobile

More information

Extending the Operation Range of Dry Screw Compressors by Cooling Their Rotors

Extending the Operation Range of Dry Screw Compressors by Cooling Their Rotors Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2004 Extending the Operation Range of Dry Screw Compressors by Cooling Their Rotors Nikola

More information

Availability Analysis For Optimizing A Vehicle A/C System

Availability Analysis For Optimizing A Vehicle A/C System Purdue University Purdue e-pubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 2002 Availability Analysis For Optimizing A Vehicle A/C System Y. Zheng Visteon

More information

Comparison Between Different Arrangements of Bypass Valves in Scroll Compressors

Comparison Between Different Arrangements of Bypass Valves in Scroll Compressors Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2008 Comparison Between Different Arrangements of Bypass Valves in Scroll Compressors Yangguang

More information

Development of Rotary Compressor for Highefficiency CO2 Heat-pump Hot-Water Supply System

Development of Rotary Compressor for Highefficiency CO2 Heat-pump Hot-Water Supply System Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2014 Development of Rotary Compressor for Highefficiency CO2 Heat-pump Hot-Water Supply

More information

Small Oil Free Piston Type Compressor For CO2

Small Oil Free Piston Type Compressor For CO2 Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2002 Small Oil Free Piston Type Compressor For CO2 H. Baumann Baumann Engineering M. Conzett

More information

Reduction Of Noise And Over-Compression Loss By Scroll Compressor With Modified Discharge Check Valve

Reduction Of Noise And Over-Compression Loss By Scroll Compressor With Modified Discharge Check Valve Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering Reduction Of Noise And Over-Compression Loss y Scroll Compressor With Modified Discharge

More information

The Characteristics of LGE Linear Oscillating Motor

The Characteristics of LGE Linear Oscillating Motor urdue University urdue e-ubs International Compressor Engineering Conference School of Mechanical Engineering 010 The Characteristics of LGE Linear Oscillating Motor Sangsub Jeong Wonsik Oh Hyuk Lee Sungman

More information

Investigation of Torque-Fluctuation Reducer Made of Permanent-Magnets for Screw Compressors

Investigation of Torque-Fluctuation Reducer Made of Permanent-Magnets for Screw Compressors Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1996 Investigation of Torque-Fluctuation Reducer Made of Permanent-Magnets for Screw Compressors

More information

Study of a Novel Compliant Suspension Mechanism in Low Side Type Scroll Compressor

Study of a Novel Compliant Suspension Mechanism in Low Side Type Scroll Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2008 Study of a Novel Compliant Suspension Mechanism in Low Side Type Scroll Compressor

More information

Scroll Expander for Carbon Dioxide Cycle

Scroll Expander for Carbon Dioxide Cycle Purdue University Purdue e-pubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 26 Scroll Expander for Carbon Dioxide Cycle Detlef Westphalen John Dieckmann

More information

A Prototype Oil-Less Compressor for the International Space Station Refrigerated Centrifuge

A Prototype Oil-Less Compressor for the International Space Station Refrigerated Centrifuge Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2000 A Prototype Oil-Less Compressor for the International Space Station Refrigerated Centrifuge

More information

The Performance Optimization of Rolling Piston Compressors Based on CFD Simulation

The Performance Optimization of Rolling Piston Compressors Based on CFD Simulation Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2004 The Performance Optimization of Rolling Piston Compressors Based on CFD Simulation

More information

Discharge Characteristics of an Oil Feeder Pump Using Nozzle Type Fluidic Diodes for a Horizontal Compressor Depending onthe Driving Speed

Discharge Characteristics of an Oil Feeder Pump Using Nozzle Type Fluidic Diodes for a Horizontal Compressor Depending onthe Driving Speed Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1988 Discharge Characteristics of an Oil Feeder Pump Using Nozzle Type Fluidic Diodes for

More information

Noise Reduction of Accumulators for R410A Rotary Compressors

Noise Reduction of Accumulators for R410A Rotary Compressors Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2008 Noise Reduction of Accumulators for R410A Rotary Compressors Ling Li Guangdong Meizhi

More information

Development of a New Type Cylinder Head for Piston Compressors

Development of a New Type Cylinder Head for Piston Compressors Purdue University Purdue e-pubs nternational Compressor Engineering Conference School of Mechanical Engineering 2 Development of a New Type Cylinder Head for Piston Compressors E. Ayder nstanbul Technical

More information

High Efficiency Inverter Scroll Compressors

High Efficiency Inverter Scroll Compressors High Efficiency Inverter Scroll Compressors Yasuhiro MURAKAMI, Hiroshi KITAURA, Kazuhiko MATSUKAWA,Katsumi KATOU, Yoshitomo TSUKA, Yasuo MIZUSHIMA July 11-14, 2016 Overview 1. The structure of the traditional

More information

Lubrication Analysis of Journal Bearings in R410A Rotary Compressor

Lubrication Analysis of Journal Bearings in R410A Rotary Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2016 Lubrication Analysis of Journal Bearings in R410A Rotary Compressor Yongjun Fu Guangdong

More information

Diesel-Driven Compressor Torque Pulse Measurement in a Transport Refrigeration Unit

Diesel-Driven Compressor Torque Pulse Measurement in a Transport Refrigeration Unit Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 214 Diesel-Driven Compressor Torque Pulse Measurement in a Transport Refrigeration Unit

More information

Experimental Investigation of Sound Pressure Levels Variation During Modulation of a Compressor in a Unit Case Study

Experimental Investigation of Sound Pressure Levels Variation During Modulation of a Compressor in a Unit Case Study Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2006 Experimental Investigation of Sound Pressure Levels Variation During Modulation of

More information

Comparing FEM Transfer Matrix Simulated Compressor Plenum Pressure Pulsations to Measured Pressure Pulsations and to CFD Results

Comparing FEM Transfer Matrix Simulated Compressor Plenum Pressure Pulsations to Measured Pressure Pulsations and to CFD Results Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2012 Comparing FEM Transfer Matrix Simulated Compressor Plenum Pressure Pulsations to Measured

More information

A Low Friction Thrust Bearing for Reciprocating Compressors

A Low Friction Thrust Bearing for Reciprocating Compressors Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering A Low Friction Thrust Bearing for Reciprocating Compressors Shuhei Nagata shuhei.nagata.wq@hitachi.com

More information

Twin Screw Compressor Performance and Its Relationship with Rotor Cutter Blade Shape and Manufacturing Cost

Twin Screw Compressor Performance and Its Relationship with Rotor Cutter Blade Shape and Manufacturing Cost Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1994 Twin Screw Compressor Performance and Its Relationship with Rotor Cutter Blade Shape

More information

Oil Circulation Rate in Rotary Compressor: Its Measurement and Factors Affecting the Rate

Oil Circulation Rate in Rotary Compressor: Its Measurement and Factors Affecting the Rate Purdue University Purdue e-pubs nternational Compressor Engineering Conference School of Mechanical Engineering 2 Oil Circulation Rate in Rotary Compressor: ts Measurement and Factors Affecting the Rate

More information

The Digital Simulation Of The Vibration Of Compressor And Pipe System

The Digital Simulation Of The Vibration Of Compressor And Pipe System Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2002 The Digital Simulation Of The Vibration Of Compressor And Pipe System J. Ling Shanghai

More information

An Experimental Analysis on the Flow Rate in Scroll Compressors

An Experimental Analysis on the Flow Rate in Scroll Compressors Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1998 An Experimental Analysis on the Flow Rate in Scroll Compressors D. H. Kim LG Electronics

More information

Compressor Noise Control

Compressor Noise Control Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1972 Compressor Noise Control G. M. Diehl Ingersoll-Rand Research Follow this and additional

More information

The Design Aspects of Metal- Polymer Bushings in Compressor Applications

The Design Aspects of Metal- Polymer Bushings in Compressor Applications Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2006 The Design Aspects of Metal- Polymer Bushings in Compressor Applications Christopher

More information

Experimental Study Of The Oil Injection Screw Air Compressor

Experimental Study Of The Oil Injection Screw Air Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2002 Experimental Study Of The Oil Injection Screw Air Compressor Z. Zhang Y. Tan G. Shi

More information

Twin-Screw Compressor Performance and Suitable Lubricants with HFC-134a

Twin-Screw Compressor Performance and Suitable Lubricants with HFC-134a Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1990 Twin-Screw Compressor Performance and Suitable Lubricants with HFC-134a L. J. Sjoholm

More information

A Novel Automotive Two-Stage A/C Compressor

A Novel Automotive Two-Stage A/C Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2000 A Novel Automotive Two-Stage A/C Compressor Y. Huang S. Harte L. Sud V. K. Khetarpal

More information

Theoretical and Experimental Investigation of Compression Loads in Twin Screw Compressor

Theoretical and Experimental Investigation of Compression Loads in Twin Screw Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2004 Theoretical and Experimental Investigation of Compression Loads in Twin Screw Compressor

More information

Noise Reduction in Bus A/C Systems with Screw Compressors Part II

Noise Reduction in Bus A/C Systems with Screw Compressors Part II Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2008 Noise Reduction in Bus A/C Systems with Screw Compressors Part II Lars I. Sjoholm Thermo

More information

Elimination of Instability in Modulating Capacity Reciprocating Compressor

Elimination of Instability in Modulating Capacity Reciprocating Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2000 Elimination of Instability in Modulating Capacity Reciprocating Compressor P. Wagner

More information

Transient Thermal Analysis of Screw Compressors, Part III: Transient Thermal Analysis of a Screw Compressor to Determine Rotor-to-Rotor Clearances

Transient Thermal Analysis of Screw Compressors, Part III: Transient Thermal Analysis of a Screw Compressor to Determine Rotor-to-Rotor Clearances Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 26 Transient Thermal Analysis of Screw Compressors, Part III: Transient Thermal Analysis

More information

Effects of Refrigerant Injection on the Scroll Compressor

Effects of Refrigerant Injection on the Scroll Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2006 Effects of Refrigerant Injection on the Scroll Compressor Baolong Wang Xianting Li

More information

Research of the Effectiveness of Use of New Mechanism in Reciprocating Compressors

Research of the Effectiveness of Use of New Mechanism in Reciprocating Compressors Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2000 Research of the Effectiveness of Use of New Mechanism in Reciprocating Compressors

More information

Important Parameters for Small, Twin-Screw Refrigeration Compressors

Important Parameters for Small, Twin-Screw Refrigeration Compressors Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1986 Important Parameters for Small, Twin-Screw Refrigeration Compressors L. Sjoholm Follow

More information

Optimum Rotor Geometrical Parameters in Refrigeration Helical Twin Screw Compressors

Optimum Rotor Geometrical Parameters in Refrigeration Helical Twin Screw Compressors Purdue University Purdue e-pubs International Compressor ngineering Conference School of Mechanical ngineering 1996 Optimum Rotor Geometrical Parameters in Refrigeration Helical Twin Screw Compressors

More information

Influence of Cylinder Bore Volume on Pressure Pulsations in a Hermetic Reciprocating Compressor

Influence of Cylinder Bore Volume on Pressure Pulsations in a Hermetic Reciprocating Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2014 Influence of Cylinder Bore Volume on Pressure Pulsations in a Hermetic Reciprocating

More information

A Study on the Starting Characteristics of a Reciprocating Compressor for a Household Refrigerator

A Study on the Starting Characteristics of a Reciprocating Compressor for a Household Refrigerator Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1996 A Study on the Starting Characteristics of a Reciprocating Compressor for a Household

More information

Design Parameters to Determine Tangential Vibration of Rotary Compressor

Design Parameters to Determine Tangential Vibration of Rotary Compressor Purdue University Purdue e-pubs nternational Compressor Engineering Conference School of Mechanical Engineering 2 Design Parameters to Determine Tangential Vibration of Rotary Compressor. Hwang United

More information

A Large Modern High Speed Reciprocating Compressor

A Large Modern High Speed Reciprocating Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1998 A Large Modern High Speed Reciprocating Compressor H. H. Van der Linden Grasso Products

More information

The Reduction of the Noise/Vibration Generated by the Discharge Valve System in Hermetic Compressor for Refrigerator

The Reduction of the Noise/Vibration Generated by the Discharge Valve System in Hermetic Compressor for Refrigerator Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2000 The Reduction of the Noise/Vibration Generated by the Discharge Valve System in Hermetic

More information

A New Device to Measure Instantaneous Swept Volume of Reciprocating Machines/Compressors

A New Device to Measure Instantaneous Swept Volume of Reciprocating Machines/Compressors Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2004 A New Device to Measure Instantaneous Swept Volume of Reciprocating Machines/Compressors

More information

A Motor Designer Looks at Positive Temperature Coefficient Resistors

A Motor Designer Looks at Positive Temperature Coefficient Resistors Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1974 A Motor Designer Looks at Positive Temperature Coefficient Resistors W. R. Hoffmeyer

More information

Numerical and Experimental Research on Vibration Mechanism of Rotary Compressor

Numerical and Experimental Research on Vibration Mechanism of Rotary Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2018 Numerical and Experimental Research on Vibration Mechanism of Rotary Compressor Zhiqiang

More information

Evaluation of methods to decrease the discharge temperature of R32 scroll compressor

Evaluation of methods to decrease the discharge temperature of R32 scroll compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2014 Evaluation of methods to decrease the discharge temperature of R32 scroll compressor

More information

Three Phase Hermetic Protector Application Process

Three Phase Hermetic Protector Application Process Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1996 Three Phase Hermetic Protector Application Process J. Petraitis Texas Instruments Follow

More information

Practical Stability Performance of Polyvinylether (PVE) With HFC Refrigerants

Practical Stability Performance of Polyvinylether (PVE) With HFC Refrigerants Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2 Practical Stability Performance of Polyvinylether (PVE) With HFC Refrigerants S. Tominaga

More information

A Study On The Oil Supply System Of A Horizontal Rotary Compressor With Vane Utilized For Oil Feeding

A Study On The Oil Supply System Of A Horizontal Rotary Compressor With Vane Utilized For Oil Feeding Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 00 A Study On The Oil Supply System Of A Horizontal Rotary Compressor With Vane Utilized

More information

Infinitely Variable Capacity Control

Infinitely Variable Capacity Control Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1972 Infinitely Variable Capacity Control K. H. White Ingersoll-Rand Company Follow this

More information

CFD Simulation of a Scroll Compressor Oil Pumping System

CFD Simulation of a Scroll Compressor Oil Pumping System Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2000 CFD Simulation of a Scroll Compressor Oil Pumping System J. de Bernardi Danfoss Maneurop

More information

Structural Analysis Of Reciprocating Compressor Manifold

Structural Analysis Of Reciprocating Compressor Manifold Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2016 Structural Analysis Of Reciprocating Compressor Manifold Marcos Giovani Dropa Bortoli

More information

Transient Modeling of Vapor Compression Refrigeration Systems Using Measured Compressor COP

Transient Modeling of Vapor Compression Refrigeration Systems Using Measured Compressor COP Purdue University Purdue e-pubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 2004 Transient Modeling of Vapor Compression Refrigeration Systems Using Measured

More information

Reducing the Fuel Consumption by Speed Control of the Air Conditioning Compressor

Reducing the Fuel Consumption by Speed Control of the Air Conditioning Compressor Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 28 Reducing the Fuel Consumption by Speed Control of the Air Conditioning Compressor Rico

More information

Development and Application of a Software Package for the Design of Twin Screw Compressors

Development and Application of a Software Package for the Design of Twin Screw Compressors Purdue University Purdue e-pubs nternational Compressor Engineering Conference School of Mechanical Engineering 2000 Development and Application of a Software Package for the Design of Twin Screw Compressors

More information

Developments in Dry Running Seals for Reciprocating Compressors

Developments in Dry Running Seals for Reciprocating Compressors Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1996 Developments in Dry Running Seals for Reciprocating Compressors K. Graunke Sulzer-Burckhardt

More information

Direct Torque Measurement of Hermetic Rotary Compressors Using Strain Gauge

Direct Torque Measurement of Hermetic Rotary Compressors Using Strain Gauge Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2 Direct Torque Measurement of Hermetic Rotary Compressors Using Strain Gauge M. Matsushima

More information

SANYO SCROLL COMPRESSORS

SANYO SCROLL COMPRESSORS SANYO SCROLL COMPRESSORS Code : 809 963 88 Model : C-SBN453H8D DALIAN SANYO COMPRESSOR CO.,LTD. Rev.2007-5 SANYO Scroll Compressor Model C-SBN453H8D Electrical 380-415 Volts 3 Phase 50Hz Refrigerant R410A

More information

Lower-Loss Technology

Lower-Loss Technology Lower-Loss Technology FOR A STEPPING MOTOR Yasuo Sato (From the Fall 28 Technical Conference of the SMMA. Reprinted with permission of the Small Motor & Motion Association.) Management Summary The demand

More information

Linear Compressors for Clean and Specialty Gases

Linear Compressors for Clean and Specialty Gases Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1998 Linear Compressors for Clean and Specialty Gases R. L. Unger Sunpower Inc. Follow this

More information

Research on the Structure of Linear Oscillation Motor and the Corresponding Applications on Piston Type Refrigeration Compressor

Research on the Structure of Linear Oscillation Motor and the Corresponding Applications on Piston Type Refrigeration Compressor International Conference on Informatization in Education, Management and Business (IEMB 2015) Research on the Structure of Linear Oscillation Motor and the Corresponding Applications on Piston Type Refrigeration

More information

VARIABLE FREQUENCY DRIVE AND ITS INDUSTRIAL APPLICATIONS

VARIABLE FREQUENCY DRIVE AND ITS INDUSTRIAL APPLICATIONS VARIABLE FREQUENCY DRIVE AND ITS INDUSTRIAL APPLICATIONS Ms. Mrunal Khadke 1 Mr. V. S. Kamble 2 1 Student, Department of Electrical Engineering, AISSMS-IOIT, Pune, Maharashtra, India 2 Assistant Professor,

More information

Properties of Polyvinylether (PVE) as a Lubricant for Air Conditioning systems with HFC Refrigerants?Data Update?

Properties of Polyvinylether (PVE) as a Lubricant for Air Conditioning systems with HFC Refrigerants?Data Update? Purdue University Purdue e-pubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 21 Properties of Polyvinylether (PVE) as a Lubricant for Air Conditioning systems

More information

Advanced efficiency, precision cooling Design an HVAC system like no other

Advanced efficiency, precision cooling Design an HVAC system like no other VZH, 2 nd generation of inverter scroll compressors Advanced efficiency, precision cooling Design an HVAC system like no other Stand out in the commercial HVAC and process cooling marketplace by boosting

More information

Advanced efficiency, precision cooling Design an HVAC system like no other

Advanced efficiency, precision cooling Design an HVAC system like no other VZH, 2 nd generation of inverter scroll compressors Advanced efficiency, precision cooling Design an HVAC system like no other Stand out in the commercial HVAC and process cooling marketplace by boosting

More information

A Scroll Compressor for Air Conditioners

A Scroll Compressor for Air Conditioners Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1984 A Scroll Compressor for Air Conditioners K. Tojo M. Ikegawa M. Shiibayashi N. Arai

More information

CFD Analysis of Discharge Gas flow in Rotary Compressor for OCR reduction

CFD Analysis of Discharge Gas flow in Rotary Compressor for OCR reduction Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2010 CFD Analysis of Discharge Gas flow in Rotary Compressor for OCR reduction Kamal Sharma

More information

Advanced efficiency, precision cooling Design an HVAC system like no other

Advanced efficiency, precision cooling Design an HVAC system like no other VZH, 2 nd generation of inverter scroll compressors Advanced efficiency, precision cooling Design an HVAC system like no other Stand out in the commercial HVAC and process cooling marketplace by boosting

More information

The Built-In Sensor Bearing to Measure The Shaft Motion Of A Small Rotary Compressor For Air- Conditioning

The Built-In Sensor Bearing to Measure The Shaft Motion Of A Small Rotary Compressor For Air- Conditioning Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2002 The Built-In Sensor Bearing to Measure The Shaft Motion Of A Small Rotary Compressor

More information

Storage, Bulk Transfer, and In-Plant Handling of Zeotropic Refrigerant Blends

Storage, Bulk Transfer, and In-Plant Handling of Zeotropic Refrigerant Blends Purdue University Purdue epubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 1996 Storage, Bulk Transfer, and InPlant Handling of Zeotropic Refrigerant Blends

More information

The Influence of Discharge Ports on Rotor Contact in Screw Compressors

The Influence of Discharge Ports on Rotor Contact in Screw Compressors Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2006 The Influence of Discharge Ports on Rotor Contact in Screw Compressors Nikola Stosic

More information

Effect of Lubricant-Refrigerant Mixture Properties on Compressor Efficiencies

Effect of Lubricant-Refrigerant Mixture Properties on Compressor Efficiencies Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2014 Effect of Lubricant-Refrigerant Mixture Properties on Compressor Efficiencies Scott

More information

50Hz ZB76KCE-TFD R404A Dew Point

50Hz ZB76KCE-TFD R404A Dew Point 50Hz ZB76KCE-TFD R404A Dew Point 60 50 40 30 20 10-25 -20-15 -10-5 0 5 10 15 Minimum evaporating temp. with: 10K Suction Superheat 20 C Suction Gas Return Suction Return Temperature 20,0 C Evaporating

More information

Performance Improvement of a Reciprocating Air Microcompressor

Performance Improvement of a Reciprocating Air Microcompressor Purdue University Purdue e-pubs International Compressor ngineering Conference School of Mechanical ngineering 1998 Performance Improvement of a Reciprocating Air Microcompressor M. Fujiwara Muroran Institute

More information

Product Data Sheet HKK70VSD Revision 1 (Variant Code E)

Product Data Sheet HKK70VSD Revision 1 (Variant Code E) Product Data Sheet Revision 1 (Variant Code E) 1 Application Application Refrigerant Expansion Device Cooling Type LBP R600a Capillary Static To be used also in appliances with stop valve (technical consultation

More information

A New Hybrid Transmission designed for FWD Sports Utility Vehicles

A New Hybrid Transmission designed for FWD Sports Utility Vehicles A New Hybrid Transmission designed for FWD Sports Utility Vehicles Yota Mizuno, Masahiro Kojima, Hideto Watanabe, Hiroshi Hata Tatsuhiko Mizutani, Munehiro Kamiya, Keiji Takizawa Toyota Motor Corp. 1 ABSTRACT

More information

ZF Copeland Scroll Compressor Range for Low Temperature Refrigeration using R407A/F, R448A/R449A and R404A

ZF Copeland Scroll Compressor Range for Low Temperature Refrigeration using R407A/F, R448A/R449A and R404A ZF Copeland Scroll Compressor Range for Low Temperature Refrigeration using R7A/F, R448A/R449A and R4A Emerson Climate Technologies developed the ZF range to provide the best performance in low temperature.

More information

Inverter scroll compressors VZH single and manifold

Inverter scroll compressors VZH single and manifold Application guidelines Inverter scroll compressors VZH088-117-170 single and manifold R410A http://cc.danfoss.com Content VZH088-117-170 - single compressors... 4 VZH088-117-170 - hybrid manifolding...

More information