Oil Circulation Rate in Rotary Compressor: Its Measurement and Factors Affecting the Rate
|
|
- Calvin Wells
- 1 years ago
- Views:
Transcription
1 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 K Min United Technologies Carrier Corporation Hwang United Technologies Carrier Corporation Follow this and additional works at: Min, K and Hwang,, "Oil Circulation Rate in Rotary Compressor: ts Measurement and Factors Affecting the Rate" (2) nternational 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/orderlithtml
2 Oil Circulation Rate in Rotary Compressor: ts Measurement and Factors Affecting the Rate Kyungki Min, lnsoo Hwang United Technologies Carrier Corporation c/o Daewoo Carrier Corporation Kwangju, Korea ABSTRACT Oil circulation rate is a crucial factor affecting air-conditioning system performance and rotary compressor reliability This paper illustrates several design concepts to reduce oil circulation rate and discusses their effectiveness This paper also discusses how to measure the rate in terms of accuracy and repeatability with a statistical significance NTRODUCTON The flow circulating in refrigeration systems is a mixture of refrigerant and lubricating oil The primary function of lubricating oil is to reduce friction and minimize wear at journal bearing of compressor Oil pumped out of compressor causes problems both in unit and compressor The oil concentration in the unit may have significant effects on hydrodynamic and heat transfer performance of condenser and evaporator, because of changes in the thermodynamic and transport properties So it negatively affects unit efficiency by lowering effectiveness of coil heat transfer And high oil circulation rates(ocr) may lead to compressor bearing failure in split, multi-evaporator split and heat pump Recognizing these important effects of oil in a refrigeration system, the OCR must be kept at minimum level But the methods to determine OCR with accuracy and repeatability are quite difficult JJ Baustian et al suggested several prospective methods 1 > These are the method utilizing, 1) density measured with the natural frequency of U-tube holding refrigeranuoil mixture, 2) viscosity of mixture 3) ultrasonic velocity KKutsuna et al and A Wada et al utilized 4) ultraviolet (UV) light absorption behavior of oil 2 > 3 > But they are not in common use yet due to complexity, high cost, calibration problem, and the required limit of liquid line measurement only This paper identifies oil discharge mechanism from compressor and how to measure OCR with simplicity, accuracy, and repeatability Two methods of measuring OCR are suggested One is suitable for compressor manufacturers which measures percentage(%) of oil in the oilrefrigerant mixture flows in calorimeter, named conveniently Weight Measurement Purdue University, West Lafayette, N, USA- July 25-28, 2 269
3 Method(WMM) The other, Oil Separating Method(OSM), is more suitable for unit manufacturers Descriptions of experimental procedures and results from laboratory measurements are presented and the correlation between two methods is also discussed This paper also illustrates several design concepts to reduce OCR and discusses their effectiveness based on oil discharge mechanism Oil DSCHARGE MECHANSM There are three kinds of approaches to reduce OCR in rotary compressor One of the approaches is to reduce oil concentration itself in the mixture of refrigerant gas and oil Another approach is to change the distribution density of oil droplet size And the other is to reduce the gas velocity The control of oil droplet size as well as gas velocity provides clues in reducing OCR Flow resistance on the small oil droplet is due to viscous force, because the Reynolds number is very small 4 > n this case Stoke's equation may be applied to determine the terminal velocity of a particle of a given diameter f the gas velocity is greater than the terminal velocity of a given droplet size, then the droplet will move to the top of the compressor shell Whereas if the gravity force on a given droplet size is greater than viscous force, oil droplets return to the oil sump Figure 1 illustrates the relation between gas velocity and oil droplet size, > (J) ll N c Q> ll -oq) co Qo _ :: " = ;:::: in i:5 Oil droplet size at terminal velocity i " " "! 1 :Migrate t 1 i Return to the 11 sump : 1n o cyce Oil droplet size Figure 1 Basic concept of the control of oil droplet size and gas velocity Oil discharge mechanism of rotary compressors consists of three factors, which are sources, paths, and collectors 4 > They are illustrated in Figure 2 The distribution density of oil droplet size as well as oil concentration itself in the mixture of refrigerant gas and oil are mainly determined by the sources of the oil discharge mechanism Most of paths affect the velocity of oil mists, which flow along discharged gas at a specified Purdue University, West Lafayette, N, USA- July 25-28, 2 27
4 velocity under a given operating condition And, collectors mainly control the size of oil droplets that determines its terminal velocity : Oil level, Oil feeding into pump, Vane/vane spring activity, Gas exhausted downward through muffler clearance, Windage by rotor, Oil forming, Oil in the returned gas Path( ) : Oil pickup tube, Muffler discharge hole, Bearing oil groove Stator core cut area, Air gap Rotor vent hole, Discharge tube : nner surface of case, Cavity inside upper shell/lower Stator winding coil, Rotor fan plate Figure 2 Oil Discharge Mechanism in Rotary Compressor NSTRUMENTATON The Weight Measurement Method(WMM), shown in Figure 3, involves three measurement components; bomb, oil separator and needle valve The WMM(%) measures the weight-percent of oil in the mixture, and the procedure is very simple to follow First, the WMM bomb is evacuated and weighed A sample of the oil-refrigerant mixture must be taken from liquid line The refrigerant in the bomb is blown off through an oil separator using a needle valve After that the residual refrigerant inside WMM bomb should be removed by evacuation Both accuracy and repeatability of actual measurements are found consistent Table 1 illustrates the results from measurements using the WMM Repeatability within ± 3% weight-percent oil is possible at 95% confidence level ASRHE suggests that the allowable error in the measurement is to be ±one weight-percent oil This method is suitable for use by compressor manufacturers, which are equipped with calorimeter Purdue University, West Lafayette, N, USA- July 25-28, 2 271
5 Table 1 Repeatability of Weight Measurement Method tem Sample#1 Sample#2 Sample#3 Sample#4 Charged oil(g) Charged refrigerant(g) Residual oil after removing refrigerant (g) Actual(%) - WMM(%) This method is, however, inadequate for measuring oil movement characteristics under transient condition Another method is introduced to overcome this shortcoming of measuring OCR The Oil Separating Method(OSM, cc/min}, shown in Figure 3, requires an oil separator in compressor discharge line While oil which flows along with refrigerant gas is separated by passing through an oil separator and collected into the sight glass, refrigerant gas passes through the oil separator and circulates in the cycle This method is capable of testing transient oil migration and does not affect the system operation Figure 4 illustrates the correlation between WMM and OSM for five samples The OSM is slightly lower than theoretical line shown in Figure 4, for OCR is reduced as oil level in the compressor oil sump becomes lower because of oil trapped in the sight glass These two methods are very simple, reliable, easy to install, and can be used not only in the laboratory but also in the refrigeration systems in the field as well : Oil+ Ref : r F---!-1;,, Ref r : -::::::::::: : r condenser ; CJ) ii" G) ii) ll ll!= WMM(%) OSM(cc/min) Figure 3 Schematic diagram of the apparatus of WMM(%) and OSM(cc/min) Purdue University, West Lafayette, N, USA- July 25-28, 2 272
6 1: e 1-8 (/) ! J_ _ _ ! WMM((%) Figure 4 Correlation between WMM(%) and OSM(cc/min) TEST RESULTS mprovement in OCR can be obtained by controlling the source, path, and collector of the oil discharge mechanism Figure 5 illustrates several design items to reduce OCR and their effectiveness t shows the relative effectiveness in improving OCR of rotary compressor (/) (/) c Q) Q) c E Q) Q) t>e - > &a Q) E ala:: o Q)- ::: LO c:i :> :> :::: :::: :-:- :::: :-:- :-: Q) co L Q) Q) Q) Q) Q) - m oc Q) c L c (/) "Q_ co L z-- Q) C> EGl O::J ::J,_ Q)= > c Q) c -o Q) Q) c ::Jc ::J Q) a co Q) (Uo - L U5 > C>Q) - (/) > a L X: co co > Q) L- L L ::J oc c Q) L o- z;: w - a:: a:: -o co >- Figure 5 OCR mprovement tems and their effectiveness (Y-axis values are relatively indexed) 6 Q) c > ((l:z:i > _co Q) C> c c co c >a (/) Stator core cut area and rotor vent hole, which are related with pressure drop across motor, are major factors to reduce OCR as paths are related with gas velocity Also, how far the discharge tube is inserted into the upper shell is important factor in reducing OCR because the Purdue University, West Lafayette, N, USA- July 25-28, 2 273
7 gas velocity varies inside upper shell nner surface of shell, stator winding coil and rotor fan plate may be used to increase the oil droplets size as oil collectors The OCR becomes very sensitive to the oil level above a specified level, especially in a flooding condition when much refrigerant dissolves into oil The vane/vane spring activity and windage by rotor affect OCR at high rotational speed CONCLUSON SUMMARY n this study, the two measurement methods of oil circulation rate and factors affecting the rate have been discussed The two methods, WMM and OSM, are recommended to measure OCR for simplicity, reliability, accuracy, low cost and repeatability Both WMM and OSM work well, and there is strong correlation between two methods This paper also identifies theoretical oil discharge mechanism of the rolling piston type rotary compressor and the controlling methods of the oil droplet size and gas velocity Several design concepts to reduce OCR and their effectiveness based on oil discharge mechanism are suggested REFERENCES 1 JJ Baustian et al, "Real time determination of concentration of oil dissolved refrigerant flow stream without sample removal" Final report, College of Engineering owa State Univ K Kutsuna et al "Real time oil concentration measurement in automotive air conditioning by ultraviolet light absorption" SAE paper 91222, A Wada et al "A novel approach to instrumentation and application for OCR measurement in refrigeration system" Proceeding 1992 nternational Compressor Engineering Conference pp Paul Bushnell, ' Oil droplet generation and control in rolling piston type compressor' Proceeding 1998 nternational Compressor Engineering Conference pp Purdue University, West Lafayette, N, USA- July 25-28, 2 274
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
Theoretical and Experimental Evaluation of the Friction Torque in Compressors with Straddle Bearings
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1998 Theoretical and Experimental Evaluation of the Friction Torque in Compressors with
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
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
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
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
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
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
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
Development of DC Inverter Scroll Compressor used for Marine Container Refrigeration Unit
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
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
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
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
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
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
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
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
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
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
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
Numerical Investigation of the Gas Leakage through the Piston-Cylinder Clearance of Reciprocating Compressors
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2014 Numerical Investigation of the Gas Leakage through the Piston-Cylinder Clearance of
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
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
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
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
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
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
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
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
Characteristic of a Miniature Linear Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2010 Characteristic of a Miniature Linear Compressor Wen Wang Shanghai Jiao Tong University
Stepless Variable Capacity Control
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1974 Stepless Variable Capacity Control W. J. Tuymer Hoerbiger Corporation of America Follow
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
A MATHEMATICAL MODEL OF THE CORRUGATED PLATES PACKING OIL-WATER SEPARATOR
PERIODICA POLYTECHNICA SER. CHEM. ENG. VOL. 38, NOS. 1-11, PP. 153-158 (199~) A MATHEMATICAL MODEL OF THE CORRUGATED PLATES PACKING OIL-WATER SEPARATOR Lian-Kui WEN and Yuan-Yang ZHENG University of Petroleum,
Numerical Investigation of Oil Flow in a Hermetic Reciprocating Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2010 Numerical Investigation of Oil Flow in a Hermetic Reciprocating Compressor Husnu Kerpicci
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
Modeling Capacity and Coefficient of Performance of a Refrigeration Compressor
urdue University urdue e-ubs International ompressor ngineering onference School of Mechanical ngineering 004 Modeling apacity and oefficient of erformance of a Refrigeration ompressor Hubert Bukac Little
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
Internal Cooling of the Piston Rod in Non- Lubricated Piston Compressors
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2012 Internal Cooling of the Piston Rod in Non- Lubricated Piston Compressors Christiane
A New Control Mechanism for Two-Phase Ejector in Vapor Compression Cycles Using Adjustable Motive Nozzle Inlet Vortex
Purdue University Purdue e-pubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 2016 A New Control Mechanism for Two-Phase Ejector in Vapor Compression Cycles
Performance Analysis of OIF Single Screw Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1986 Performance Analysis of OIF Single Screw Compressor T. Hirai S. Noda Y. Sagara K. Tsuzi
Theoretical Study of a Novel Multi Vane Rotary Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2012 Theoretical Study of a Novel Multi Vane Rotary Compressor Abd Rahim Mat Sarip eayiem@yahoo.com
Performance Evaluation of Hermetic Refrigeration Compressor Using Torque Measurement Method
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1986 Performance Evaluation of Hermetic Refrigeration Compressor Using Torque Measurement
Two-Stage Rolling Piston Carbon Dioxide Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2004 Two-Stage Rolling Piston Carbon Dioxide Compressor Nelik Dreiman Tecumseh Products
Low Capacity Hermetic Type Compressor For Transcritical CO2 Applications
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2002 Low Capacity Hermetic Type Compressor For Transcritical CO2 Applications Juergen Suess
Reduction of Self Induced Vibration in Rotary Stirling Cycle Coolers
Reduction of Self Induced Vibration in Rotary Stirling Cycle Coolers U. Bin-Nun FLIR Systems Inc. Boston, MA 01862 ABSTRACT Cryocooler self induced vibration is a major consideration in the design of IR
COMPARISON OF ENERGY EFFICIENCY DETERMINATION METHODS FOR THE INDUCTION MOTORS
COMPARISON OF ENERGY EFFICIENCY DETERMINATION METHODS FOR THE INDUCTION MOTORS Bator Tsybikov 1, Evgeniy Beyerleyn 1, *, and Polina Tyuteva 1 1 Tomsk Polytechnic University, 634050, Tomsk, Russia Abstract.
Noise Reduction in a Reciprocating Compressor by Optimizing the Suction Muffler
Noise Reduction in a Reciprocating Compressor by Optimizing the Suction Muffler Katakama Nagarjuna ¹ K.Sreenivas² ¹ M.tech student, ²Professor, dept of mechanical engineering kits, markapur, A.P, INDIA
Design of A New Non-Contact Screw Seal and Determination of Performance Characteristics
Proceedings of the World Congress on Momentum, Heat and Mass Transfer (MHMT 16) Prague, Czech Republic April 4 5, 2016 Paper No. ENFHT 114 DOI: 10.11159/enfht16.114 Design of A New Non-Contact Screw Seal
A Novel Device to Measure Instantaneous Swept Volume of Internal Combustion Engines
Global Journal of Researches in Engineering Vol. 10 Issue 7 (Ver1.0), December 2010 P a g e 47 A Novel Device to Measure Instantaneous Swept Volume of Internal Combustion Engines MURUGAN. R. GJRE -A Classification
Multi Body Dynamic Analysis of Slider Crank Mechanism to Study the effect of Cylinder Offset
Multi Body Dynamic Analysis of Slider Crank Mechanism to Study the effect of Cylinder Offset Vikas Kumar Agarwal Deputy Manager Mahindra Two Wheelers Ltd. MIDC Chinchwad Pune 411019 India Abbreviations:
Development and Performance Evaluation of High-reliability Turbine Generator
Hitachi Review Vol. 52 (23), No. 2 89 Development and Performance Evaluation of High-reliability Turbine Generator Hiroshi Okabe Mitsuru Onoda Kenichi Hattori Takashi Watanabe, Dr. Eng. Hisashi Morooka
IMPACT REGISTER, INC. PRECISION BUILT RECORDERS SINCE 1914
IMPACT REGISTER, INC. PRECISION BUILT RECORDERS SINCE 1914 RM-3WE (THREE WAY) ACCELEROMETER GENERAL The RM-3WE accelerometer measures and permanently records, for periods of 30, 60, and 90 days, the magnitude,
IJESRT. Scientific Journal Impact Factor: (ISRA), Impact Factor: 2.114
IJESRT INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY SIMULATION AND VIBRATION ANALYSIS OF GEAR BOX USED IN COOLING TOWER FAN K.G.Patel*, S.U.Patil, H.G.Patil D.N.Patel College of
A Numerical Investigation of the Oil Pump Suction Behaviour in a Hermetic Reciprocating Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2016 A Numerical Investigation of the Oil Pump Suction Behaviour in a Hermetic Reciprocating
Title: Optimal Design of a Thermoelectric Cooling/Heating for Car Seat Comfort Developed by Dr. HoSung Lee on 10/18/2014 Car seat comfort is becoming
Title: Optimal Design of a Thermoelectric Cooling/Heating for Car Seat Comfort Developed by Dr. HoSung Lee on 10/18/2014 Car seat comfort is becoming more and more a competitive issue, moving optional
Large Reciprocating Compressor Design Guide Lines
Purdue University Purdue e-pubs nternational Compressor Engineering Conference School of Mechanical Engineering 1972 Large Reciprocating Compressor Design Guide Lines M. W. Garland Frick Company Follow
Air Piping System Design for Reciprocating Compressors
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1974 Air Piping System Design for Reciprocating Compressors D. E. Iocco Ingersoll-Rand Company
Mixed Lubrication Analysis of Vane Tip in Rotary Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2 Mixed Lubrication Analysis of Vane Tip in Rotary Compressor S. Tanaka Tokyo Institute
Available online at ScienceDirect. Procedia CIRP 33 (2015 )
Available online at www.sciencedirect.com ScienceDirect Procedia CIRP 33 (2015 ) 581 586 9th CIRP Conference on Intelligent Computation in Manufacturing Engineering - CIRP ICME '14 Magnetic fluid seal
Friction and Vibration Characteristics of Pneumatic Cylinder
The 3rd International Conference on Design Engineering and Science, ICDES 214 Pilsen, Czech Republic, August 31 September 3, 214 Friction and Vibration Characteristics of Pneumatic Cylinder Yasunori WAKASAWA*
Applied Fluid Mechanics
Applied Fluid Mechanics 1. The Nature of Fluid and the Study of Fluid Mechanics 2. Viscosity of Fluid 3. Pressure Measurement 4. Forces Due to Static Fluid 5. Buoyancy and Stability 6. Flow of Fluid and
Static and Dynamic Calibration of a Triaxial Force Gage for Monitoring the Structureborne Forces Within a Freon Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1992 Static and Dynamic Calibration of a Triaxial Force Gage for Monitoring the Structureborne
CALIBRATION LEARNING OBJECTIVES
C H A P TE R 4 CALIBRATION LEARNING OBJECTIVES After completely studying this chapter, you should: Understand the purpose of calibration and why it is an essential process. Know the basic tools needed
PARTICLE ATTRITION MEASUREMENTS USING A JET CUP
Refereed Proceedings The 13th International Conference on Fluidization - New Paradigm in Fluidization Engineering Engineering Conferences International Year 2010 PARTICLE ATTRITION MEASUREMENTS USING A
An Experimental Analysis of Brake Efficiency Using four Fluids in a Disc Brake System
Research Journal of Applied Sciences, Engineering and Technology 5(4): 1302-1308, 2013 ISSN: 2040-7459; e-issn: 2040-7467 Maxwell Scientific Organization, 2012 Submitted: July 02, 2012 Accepted: August
FEASIBILITY STYDY OF CHAIN DRIVE IN WATER HYDRAULIC ROTARY JOINT
FEASIBILITY STYDY OF CHAIN DRIVE IN WATER HYDRAULIC ROTARY JOINT Antti MAKELA, Jouni MATTILA, Mikko SIUKO, Matti VILENIUS Institute of Hydraulics and Automation, Tampere University of Technology P.O.Box
Influence of Micro-Bubbles within Ejected Liquid on Behavior of Cavitating Flow inside Nozzle Hole and Liquid Jet Atomization
Influence of Micro-Bubbles within Ejected Liquid on Behavior of Cavitating Flow inside Nozzle Hole and Liquid Jet Atomization T. Oda 1*, K. Takata 2, Y. Yamamoto 1, K. Ohsawa 1 1 Department of Mechanical
Finite Element Analysis on Thermal Effect of the Vehicle Engine
Proceedings of MUCEET2009 Malaysian Technical Universities Conference on Engineering and Technology June 20~22, 2009, MS Garden, Kuantan, Pahang, Malaysia Finite Element Analysis on Thermal Effect of the
Dr. Jim Henry, P.E. Professor of Engineering University of Tennessee at Chattanooga 615 McCallie Avenue Chattanooga, TN Dr.
Aubrey Gunter Green Team - Distillation College of Engineering and Computer Science University of Tennessee at Chattanooga 615 McCallie Avenue Chattanooga, TN 37421 To: Dr. Jim Henry, P.E. Professor of
Design of Self-Adjusting Strainer Assembly for Off-road Conditions used in Diesel Engine
Design of Self-Adjusting Strainer Assembly for Off-road Conditions used in Diesel Engine #1 Aditya C. Zod, #2 Dr. A. B. Kanase-Patil 1 PG Student, Department of Mechanical Engineering, Sinhgad College
Investigation & Analysis of Three Phase Induction Motor Using Finite Element Method for Power Quality Improvement
International Journal of Electronic and Electrical Engineering. ISSN 0974-2174 Volume 7, Number 9 (2014), pp. 901-908 International Research Publication House http://www.irphouse.com Investigation & Analysis
Notes 11. High Pressure Floating Ring Oil Seals
Notes 11. High Pressure Floating Ring Oil Seals Outer seal P a Outer seal land Oil supply (P S +P) Shaft Inner seal land Anti-rotation pin Seal loading spring Inner seal Process Gas (P S ) Fig. 1 Typical
Using Hydraulic Systems
Lesson A6 7 Using Hydraulic Systems Unit A. Mechanical Systems and Technology Problem Area 6. Agricultural Power Systems Lesson 7. Using Hydraulic Systems New Mexico Content Standard: Pathway Strand: Power,
HEAT TRANSFER ENHANCEMENT BY USING TWISTED TAPE INSERTS WITH CIRCULAR HOLES IN FORCED CONVECTION
HEAT TRANSFER ENHANCEMENT BY USING TWISTED TAPE INSERTS WITH CIRCULAR HOLES IN FORCED CONVECTION Prof. Kurhade Anant Sidhappa Miss. Sonal S. Hande Mr. Swarup B. Patil Mr.Vivekanand R.Maske ABSTRACT In
ABSTRACT 1. INTRODUCTION
1260, Page 1 Patrice BONNEFOI 1, Philippe DUGAST 2, Jean de BERNARDI 3 1 Danfoss CC, Advanced Technology, Trévoux, France 33 (0)4 74 00 28 29, p.bonnefoi@danfoss.com 2 Danfoss CC, Advanced Technology,
Innovative Duplex Filter for Hydraulic Applications
Group D - Fundamentals Paper D-4 205 Innovative Duplex Filter for Hydraulic Applications Klaus Mössinger ARGO-HYTOS GmbH, Industriestraße 9, 76703 Kraichtal, E-mail: k.moessinger@argohytos.com Abstract
Effect of cavitation in cylindrical and twodimensional nozzles on liquid jet formation
Effect of in cylindrical and twodimensional nozzles on liquid formation Muhammad Ilham Maulana and Jalaluddin Department of Mechanical Engineering, Syiah Kuala University, Banda Aceh, Indonesia. Corresponding
Ambixtra high-switching, high-frequency ignition coil Testing
Presented By: Nathan Bailey Date: 18 May 2016 Ambixtra high-switching, high-frequency ignition coil Testing AIE Overview AIE is a UK-based engineering company specialising in the development of innovative
NEW METHODOLOGY OF DETERMINATION OF BOILING POINT AT VERY LOW PRESSURE: PETROLEUM CASE
Distillation Absorption 2010 A.B. de Haan, H. Kooijman and A. Górak (Editors) All rights reserved by authors as per DA2010 copyright notice NEW METHODOLOGY OF DETERMINATION OF BOILING POINT AT VERY LOW
A REVIEW OF TWO WHEELER VEHICLES REAR SHOCK ABSORBER
A REVIEW OF TWO WHEELER VEHICLES REAR SHOCK ABSORBER Ganapati Somanna Vhanamane SVERI s College of Engineering Pandharpur, Solapur, India Dr. B. P. Ronge SVERI s College of Engineering Pandharpur, Solapur,
TEMPERATURE APPROACH OPTIMIZATION IN THE DOUBLE PIPE HEAT EXCHANGER WITH GROOVE
TEMPERATURE APPROACH OPTIMIZATION IN THE DOUBLE PIPE HEAT EXCHANGER WITH GROOVE Putu Wijaya Sunu, Daud Simon Anakottapary, Wayan G. Santika Department of Mechanical Engineering, Bali State Polytechnic,
TURBOLINK BEARINGS L U I D I L M E A R I N G S. Manufcturing Engineering Consulting Service & Retrofit
TURBOLINK BEARINGS Manufcturing Engineering Consulting Service & Retrofit L U I D I L M E A R I N G S 제작 : 2012. 10 #111 5th Standard Factory, 41-3 Paryongdong, Changwon, 641-847 Korea Tel : +82-55-267-3715
SIX STROKE ENGINE ARRANGEMENT
175 Military Technical College Kobry El-Kobbah, Cairo, Egypt. 15 th International Conference on Applied Mechanics and Mechanical Engineering. SIX STROKE ENGINE ARRANGEMENT M. M. Gasim *, L. G. Chui **
State of the art cooling system development for automotive applications
State of the art cooling system development for automotive applications GT Conference 2017, Frankfurt A. Fezer, TheSys GmbH P. Sommer, A. Diestel, Mercedes-AMG GmbH Content Introduction Cooling system
Analysis of External Aerodynamics of Sedan and Hatch Back Car Models Having Same Frontal Area by Experimental Wind Tunnel Method
Analysis of External Aerodynamics of Sedan and Hatch Back Car Models Having Same Frontal Area by Experimental Wind Tunnel Method 1 Sharath Kumar S N, 2 Dr. C. K. Umesh 1 M.E Scholar, 2 Professor 1,2 Department
Thermal Stress Analysis of Diesel Engine Piston
International Conference on Challenges and Opportunities in Mechanical Engineering, Industrial Engineering and Management Studies 576 Thermal Stress Analysis of Diesel Engine Piston B.R. Ramesh and Kishan
Development of Power-head Based Fan Airflow Station
ESL-IC-5-1- Development of Power-head Based Fan Airflow Station Gang ang Research associate University of Nebraska, Lincoln Mingsheng Liu Professor University of Nebraska, Lincoln Abstract Fan airflow
High Efficiency Development of a Rotary Compressor by Clarification of its Shaft Dynamic Motion
Purdue Universit Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2010 High Efficienc Development of a Rotar Compressor b Clarification of its Shaft Dnamic
Continuous Stribeck Curve Measurement Using Pin-on-Disk Tribometer
Continuous Stribeck Curve Measurement Using Pin-on-Disk Tribometer Prepared by Duanjie Li, PhD 6 Morgan, Ste156, Irvine CA 92618 P: 949.461.9292 F: 949.461.9232 nanovea.com Today's standard for tomorrow's
CHAPTER 6 DESIGN AND DEVELOPMENT OF DOUBLE WINDING INDUCTION GENERATOR
100 CHAPTER 6 DESIGN AND DEVELOPMENT OF DOUBLE WINDING INDUCTION GENERATOR 6.1 INTRODUCTION Conventional energy resources are not sufficient to meet the increasing electrical power demand. The usages of
CFD analysis of triple concentric tube heat exchanger
Available online at www.ganpatuniversity.ac.in University Journal of Research ISSN (Online) 0000 0000, ISSN (Print) 0000 0000 CFD analysis of triple concentric tube heat exchanger Patel Dharmik A a, V.
Design and Performance of an Inertia Reciprocating Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1992 Design and Performance of an Inertia Reciprocating Compressor M.A. Di Flora Bristol
Numerical Investigation of Diesel Engine Characteristics During Control System Development
Numerical Investigation of Diesel Engine Characteristics During Control System Development Aleksandr Aleksandrovich Kudryavtsev, Aleksandr Gavriilovich Kuznetsov Sergey Viktorovich Kharitonov and Dmitriy
CFD on Cavitation around Marine Propellers with Energy-Saving Devices
63 CFD on Cavitation around Marine Propellers with Energy-Saving Devices CHIHARU KAWAKITA *1 REIKO TAKASHIMA *2 KEI SATO *2 Mitsubishi Heavy Industries, Ltd. (MHI) has developed energy-saving devices that
Think Differently: Prevent Ammonia Compressor Failures
Think Differently: Prevent Ammonia Compressor Failures Ammonia Compressors are critical machines in the Food and Beverage Industry where the chilling or freezing of products is a requirement PREVENT AMMONIA
White Paper.
The Advantage of Real Atmospheric Distillation Complying with the ASTM D7345 Test Method in the Distillation Process Introduction / Background In the past, refiners enjoyed a constant supply of the same
Abstract- A system designed for use as an integrated starter- alternator unit in an automobile is presented in this paper. The
An Integrated Starter-Alternator System Using Induction Machine Winding Reconfiguration G. D. Martin, R. D. Moutoux, M. Myat, R. Tan, G. Sanders, F. Barnes University of Colorado at Boulder, Department
Available online at ScienceDirect. Physics Procedia 67 (2015 )
Available online at www.sciencedirect.com ScienceDirect Physics Procedia 67 (2015 ) 518 523 25th International Cryogenic Engineering Conference and the International Cryogenic Materials Conference in 2014,
STUDY OF THE INFLUENCE OF THE TYPE OF FUEL USED IN INTERNAL COMBUSTION ENGINES OVER THE RHEOLOGICAL PROPERTIES OF LUBRICANTS
Bulletin of the Transilvania University of Braşov Vol. 9 (58) No. 2 - Special Issue 2016 Series I: Engineering Sciences STUDY OF THE INFLUENCE OF THE TYPE OF FUEL USED IN INTERNAL COMBUSTION ENGINES OVER
Development of Oil Mist Separator System for Two Cylinder Diesel Engine
ISSN 2395-1621 Development of Mist Separator System for Two Cylinder Diesel Engine #1 Sachin S. Wetal, #2 Sachin V. Mutalikdesai 1 sachin_wetal@yahoo.com 2 sachin.3182@gmail.com #12 Mechanical Department,