Thermodynamics II MIDTERM MECH 351/2 Fall 06 CONCORDIA UNIVERSITY FACULTY OF ENGINEERING AND COMPUTER SCIENCE DEPARTMENT OF MECHANICAL ENGINEERING

Size: px
Start display at page:

Download "Thermodynamics II MIDTERM MECH 351/2 Fall 06 CONCORDIA UNIVERSITY FACULTY OF ENGINEERING AND COMPUTER SCIENCE DEPARTMENT OF MECHANICAL ENGINEERING"

Transcription

1 Thermodynamics II MIDTERM MEH 35/ Fall 06 ONORDIA UNIVERSITY FAULTY OF ENGINEERING AND OMPUTER SIENE DEPARTMENT OF MEHANIAL ENGINEERING Student s Name: I.D.: I. [50 points] A steam power plant operates on an ideal rehear-regenerative Ranine cycle and has a net power output of 80 MW. Steam enters the high pressure turbine at 0 MPa and 550º and leaves at 0.8 MPa. Some steam is extracted at this pressure to heat the feedwater in a closed feedwater heater. The extracted steam leaves the feedwater heater as a saturated liquid. The rest of the steam is reheated to 500º and is expanded in the low pressure turbine to 0 Pa. Thermodynamic properties are given in the table below in order to save time. - Draw the cycle on a T-s diagram with respect to saturation lines - Determine the mass flow rate of steam through the boiler 3- Determine the thermal efficiency of the cycle. h 9.83 h 0.9 h3 7. h h h6 8.9 h h h h All in J/g /

2 Thermodynamics II MIDTERM MEH 35/ Fall 06 II.. A Diesel cycle, with a compression ratio of 8, operates on air with a low pressure of 00 Pa and a low temperature of 00º. Assume constant heat capacities. If the heat supplied is 800 J/g, determine: - The pressure, the temperature and the specific volume at each point. - The cutoff ratio. 3- The thermal efficiency of the cycle. For air at room temperature: =.4; p=.0035 J/g K; v=0.78 J/g K and R=0.87 J/ g K II.. Put the following sentences under the right cycle:. Uses a spar plug.. Heat is supplied at constant pressure. 3. Has a higher compression ratio. 4. ompresses fuel only. 5. Heat is supplied at constant specific volume. 6. ompresses air only. 7. Has a higher efficiency than a arnot cycle operating under the same conditions. 8. ompresses air+fuel. Otto cycle Diesel cycle /

3 Thermodynamics II MIDTERM MEH 35/ Fall 07 ONORDIA UNIVERSITY FAULTY OF ENGINEERING AND OMPUTER SIENE DEPARTMENT OF MEHANIAL ENGINEERING Student s Name: I.D.: I. [40 points]. onsider a regenerative vapor power cycle with one open feedwater heater. Steam enters the turbine at 8.0 MPa, 480 and expands to 0.7 MPa, where some of the steam is extracted and diverted to the open feedwater heater operating at 0.7 MPa. The remaining steam expands through the second stage turbine to the condenser pressure of MPa. Saturated liquid exits the open feedwater heater at 0.7 MPa. The isentropic efficiency of each turbine stage is 85% and each pump operates isentropically. If the net power output of the cycle is 00 MW, determine: - Draw the T-s diagram. - The thermal efficiency. ANSWER.. - The mass flow rate of steam entering the first turbine stage, in g/s. ANSWER.. The following enthalpy is given: h 3s =46.3 J/g Turbine y 3 Boiler 6 Open Feedwater Heater 5 ondenser 7 4 Pump Pump /3

4 Thermodynamics II MIDTERM MEH 35/ Fall 07 II.. [40 points]. A Diesel cycle, with a compression ratio of 8, operates on air with a low pressure of 00 Pa and a low temperature of 00º. If the high temperature is limited to 00 K, determine, - Draw the P-v and the T-s diagrams - The thermal efficiency of the cycle. ANSWER.. - The mean effective pressure ANSWER.. - The efficiency of an Otto cycle operating with the same compression ratio. Discuss your result. ANSWER.. - ompare your efficiency to arnot efficiency under the same conditions. ANSWER.. For air at room temperature: =.4; p =.0035 J/g K; v =0.78 J/g K and R=0.87 J/ g K Diesel cycle efficiency: η th rc = r ( rc ) r compression ratio cut-off ratio r c Isentropic relations T v = T v s= cte T P = T P s= cte P v = P v s= cte p = v /3

5 Thermodynamics II MIDTERM MEH 35/ Fall 07 III. [0 points]. Put the following sentences under the right cycle:. Uses a spar plug.. Heat is supplied at constant pressure. 3. Has a higher compression ratio. 4. ompresses fuel only. 5. Heat is supplied at constant specific volume. 6. ompresses air only. 7. ompresses air+fuel. Otto cycle Diesel cycle 8. Which one of these cycles has an efficiency higher than arnot efficiency: ) Ranine cycle with reheat and regeneration ) Diesel cycle with a compression ratio of 30 and a cut-off ratio of higher than 5 3) Otto cycle with a compression ratio higher than The exhaust process in the Otto and Diesel cycles is replaced with a constant-volume process for what primary reason? ) To simulate zero wor of the actual exhaust process ) To simulate zero heat transfer of the actual exhaust process 3) To restore the air to its original state 4) To ensure that the first law is satisfied 0. Someone says that your car s engine has more power when the ambient temperature is low. Do you agree? Why? 3/3

6 THERMODYNAMIS II MIDTERM, OTOBER 0, 008 MEH 35/ ONORDIA UNIVERSITY FAULTY OF ENGINEERING AND OMPUTER SIENE DEPARTMENT OF MEHANIAL ENGINEERING Student's Name: I.D.: Notes: State clearly any assumptions you mae. If applicable, draw a setch of the problem. Return the questions paper with the answers boo. The maximum grade is 00. Question no. (60 Points) onsider a steam power plant that operates on the ideal regenerative Ranine cycle with a closed feed water heater as shown in figure. The plant maintains the turbine inlet at 3000 Pa and 350 o ; and operates the condenser at 0 Pa. Steam is extracted at 000 Pa to serve the closed feed water heater, which discharges into the condenser after being throttled to condenser pressure. Properties of selected states are given in table. a. Setch the cycle on a T-s diagram. b. alculate the wor produced by the turbine. c. alculate the heat rejected by the condenser. d. alculate the thermal efficiency of the cycle. /

7 THERMODYNAMIS II MIDTERM, OTOBER 0, 008 MEH 35/ Property h h h3 h4 s4 h5 h6 h7 Table Value 5.40 J/g J/g J/g 36.0 J/g J/g.K Determine it 3.0 J/g Determine it Question no. (40 Points) An air-standard Diesel cycle operates with a compression ratio of 6 and a cutoff ratio of. At the beginning of compression process the conditions are 37, 0.0 MPa, respectively. Assuming constant specific heats for air at room temperature (p =.005 J/g.K; v = 0.78 J/g.K and R=0.87 J/g.K), determine: (a) The maximum temperature in the cycle. (b) The pressure after the isentropic expansion. (c) The net wor per cycle and thermal efficiency. (d) The mean effective pressure. (e) The volume flow rate of air in m 3 /min, measured at conditions at the beginning of compression, needed to produce 00 KW. Isentropic relations T v T v s cte T P T P s cte P v P v s cte p v /

8 THERMODYNAMIS II MIDTERM, FEB 7TH, 0 MEH 35/4 Student's Name: I.D.: Notes: ONORDIA UNIVERSITY FAULTY OF ENGINEERING AND OMPUTER SIENE DEPARTMENT OF MEHANIAL ENGINEERING State clearly any assumptions you mae. If applicable, draw a setch of the problem. Return the questions paper with the answers boo. The maximum grade is 50. Question no. (30 Points) A Ranine steam cycle modified for reheat, a closed feewater heater, and an open feedwater heater is shown below. The high-pressure turbine receives 00 g/ s of steam from the boiler. The following data tables give the saturation data for the pressures and data for h and s at selected states.. Setch the T-s diagram for the ideal cycle.. Determine the net power output of the cycle, in MW. 3. If cooling water is available at 5º, what is the minimum flow rate of the cooling water required in g/ s (i.e., for a maximum possible temperature difference for the cooling water)? Tae p (water)= 4.8 J/ g. K. Process states and selected data

9 THERMODYNAMIS II MIDTERM, FEB 7TH, 0 MEH 35/4 State P (Pa) T (º) h (J/ g ) s (J/ g. K) NOTE: the wor of all pumps is negligible compared to the wor of the turbines. ANSWERS Net power output Minimum flow rate of the cooling water Question no. (0 Points) An ideal Diesel cycle has a maximum cycle temperature of 000 o and a cutoff ratio of.. The state of the air at the beginning of the compression is P = 95 Pa and T = 5 o. This cycle is executed in a four-stroe; eight-cylinder engine with a cylinder bore of 0 cm and a piston stroe of cm. The minimum volume enclosed in the cylinder is 5% of the maximum cylinder volume. Determine the power produced by this engine when it is operated at 600 rpm. Use constant specific heats at room temperature: p =.005 J/g.K and V = 0.78 J/g.K. ANSWER Power produced by the engine T v T v s cte T P T P s cte P v P v s cte p v

10

11

Process 1-2: Reversible adiabatic compression process. Process 2-3: Reversible isothermal heat addition

Process 1-2: Reversible adiabatic compression process. Process 2-3: Reversible isothermal heat addition Vapor Power Cycles Process 1-2: Reversible adiabatic compression process from P1 to P2. Process 2-3: Reversible isothermal heat addition process at constant temperature TH. Process 3-4: Reversible adiabatic

More information

SIDDHARTH INSTITUTE OF ENGINEERING & TECHNOLOGY :: PUTTUR (AUTONOMOUS) QUESTION BANK UNIT I I.C ENGINES

SIDDHARTH INSTITUTE OF ENGINEERING & TECHNOLOGY :: PUTTUR (AUTONOMOUS) QUESTION BANK UNIT I I.C ENGINES SIDDHARTH INSTITUTE OF ENGINEERING & TECHNOLOGY :: PUTTUR UNIT I I.C ENGINES 1 (a) Explain any six types of classification of Internal Combustion engines. (6M) (b) With a neat sketch explain any three

More information

Gas Power System. By Ertanto Vetra

Gas Power System. By Ertanto Vetra Gas Power System 1 By Ertanto Vetra Outlines Introduction Internal Combustion Engines Otto Cycles Diesel Cycles Gas Turbine Cycles Gas Turbine Based Combined Cycles Gas Turbines for Aircrafts Turbojets

More information

GYANMANJARI INSTITUTE OF TECHNOLOGY (GMIT) SUBJECT: ELEMENTS OF MECHANICAL ENGINEERING Assignment Ch 1

GYANMANJARI INSTITUTE OF TECHNOLOGY (GMIT) SUBJECT: ELEMENTS OF MECHANICAL ENGINEERING Assignment Ch 1 1. 3. GYANMANJARI INSTITUTE OF TECHNOLOGY (GMIT) Assignment Ch 1 A steel ball having mass of 10 kg and a specific heat of 460 J/kg K is heated from 50 o C to 200 o C. Determine the heat required. In a

More information

(a) then mean effective pressure and the indicated power for each end ; (b) the total indicated power : [16]

(a) then mean effective pressure and the indicated power for each end ; (b) the total indicated power : [16] Code No: R05220304 Set No. 1 II B.Tech II Semester Regular Examinations, Apr/May 2007 THERMAL ENGINEERING-I ( Common to Mechanical Engineering and Automobile Engineering) Time: 3 hours Max Marks: 80 Answer

More information

Idealizations Help Manage Analysis of Complex Processes

Idealizations Help Manage Analysis of Complex Processes 8 CHAPTER Gas Power Cycles 8-1 Idealizations Help Manage Analysis of Complex Processes The analysis of many complex processes can be reduced to a manageable level by utilizing some idealizations (fig.

More information

Chapter 9 GAS POWER CYCLES

Chapter 9 GAS POWER CYCLES Thermodynamics: An Engineering Approach Seventh Edition in SI Units Yunus A. Cengel, Michael A. Boles McGraw-Hill, 2011 Chapter 9 GAS POWER CYCLES Mehmet Kanoglu University of Gaziantep Copyright The McGraw-Hill

More information

Chapter 9 GAS POWER CYCLES

Chapter 9 GAS POWER CYCLES Thermodynamics: An Engineering Approach, 6 th Edition Yunus A. Cengel, Michael A. Boles McGraw-Hill, 2008 Chapter 9 GAS POWER CYCLES Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction

More information

In this lecture... Gas power cycles

In this lecture... Gas power cycles 7 Lect-7 Gas power cycles In this lecture... he Carnot cycle and its significance Air-standard assumptions An oeriew of reciprocating engines Otto cycle: the ideal cycle for sparkignition engines Diesel

More information

Gas Power Cycles. Tarawneh

Gas Power Cycles. Tarawneh Gas Power Cycles Dr.Mohammad Tarawneh ) Carnot cycle 2) Otto cycle ) Diesel cycle - Today 4) Dual Cycle 5) Stirling cycle 6) Ericsson cycles 7) Brayton cycle Carnot Cycle Reversible isothermal expansion

More information

Week 10. Gas Power Cycles. ME 300 Thermodynamics II 1

Week 10. Gas Power Cycles. ME 300 Thermodynamics II 1 Week 10 Gas Power Cycles ME 300 Thermodynamics II 1 Today s Outline Gas power cycles Internal combustion engines Four-stroke cycle Thermodynamic cycles Ideal cycle ME 300 Thermodynamics II 2 Gas Power

More information

KINGS COLLEGE OF ENGINEERING DEPARTMENT OF MECHANICAL ENGINEERING. Question Bank. UNIT-I THERMODYNAMIC CYCLES Part-A (2 Marks)

KINGS COLLEGE OF ENGINEERING DEPARTMENT OF MECHANICAL ENGINEERING. Question Bank. UNIT-I THERMODYNAMIC CYCLES Part-A (2 Marks) KINGS COLLEGE OF ENGINEERING DEPARTMENT OF MECHANICAL ENGINEERING Question Bank Sub. Code/Name: ME1351 - THERMAL ENGINEERING Year/Sem: III/VI 1. What is a thermodynamic cycle? UNIT-I THERMODYNAMIC CYCLES

More information

USO4CICV01/US04CICH02:

USO4CICV01/US04CICH02: Natubhai V. Patel College of Pure & Applied Sciences S. Y. B.Sc. Semester-4 Industrial chemistry/ IC (Vocational) USO4CICV0/US04CICH02: Chemical Plant Utilities UNIT 5 Internal combustion engine In an

More information

Chapter 8 Production of Power from Heat

Chapter 8 Production of Power from Heat Chapter 8 Production of Power from Heat Different sources of power, such as solar energy (from sun), kinetic energy from atmospheric winds and potential energy from tides. The most important source of

More information

Thermodynamic Cycles. Alicia Ma. Esponda Cascajares

Thermodynamic Cycles. Alicia Ma. Esponda Cascajares Thermodynamic Cycles Alicia Ma. Esponda Cascajares Power Cycles Cycles which convert a heat input into a mechanical work output. Power cycles can be divided according to the type of heat engine they seek

More information

Mohammad Faisal Haider. Department of Mechanical Engineering Bangladesh University of Engineering and Technology

Mohammad Faisal Haider. Department of Mechanical Engineering Bangladesh University of Engineering and Technology Mohammad Faisal Haider Lecturer Department of Mechanical Engineering Bangladesh University of Engineering and Technology Steam Turbine 2 Vapor Power Cycle 4 5 Steam Turbine A steam turbine is prime mover

More information

Engine Cycles. T Alrayyes

Engine Cycles. T Alrayyes Engine Cycles T Alrayyes Introduction The cycle experienced in the cylinder of an internal combustion engine is very complex. The cycle in SI and diesel engine were discussed in detail in the previous

More information

Internal Combustion Engines

Internal Combustion Engines Internal Combustion Engines Reading Problems 8-3 8-7 8-35, 8-45, 8-52 Definitions 1. spark ignition: a mixture of fuel and air is ignited by a spark plug applications requiring power to about 225 kw (300

More information

05 Marks (c) Sketch and explain Lancashire Boiler.

05 Marks (c) Sketch and explain Lancashire Boiler. Model question paper No.1 1. Answer any FIVE full questions choosing at least two questions from part A & two questions from part B 2. Use of steam tables is permitted 1. (a) Discuss briefly the different

More information

Thermodynamics cycles can be classified into different categories depending on fluid used or the different processes:

Thermodynamics cycles can be classified into different categories depending on fluid used or the different processes: Classification of thermodynamics cycles Thermodynamics cycles can be classified into different categories depending on fluid used or the different processes: Gas and vapor cycles - Gas cycle: the working

More information

Technologies & Economics

Technologies & Economics Panos Konstantin Power and Energy Systems Technologies & Economics Case Study Cycle Simulation CCT Notes: 1. Cells with black characters include inputs 2. Cells with red characters include formulas 3.

More information

Power Cycles. Ideal Cycles, Internal Combustion

Power Cycles. Ideal Cycles, Internal Combustion Gas Power Cycles Power Cycles Ideal Cycles, Internal Combustion Otto cycle, spark ignition Diesel cycle, compression ignition Sterling & Ericsson cycles Brayton cycles Jet-propulsion cycle Ideal Cycles,

More information

UNIT 1 GAS POWER CYCLES

UNIT 1 GAS POWER CYCLES THERMAL ENGINEERING UNIT 1 GAS POWER CYCLES Air Standard Cycles - Otto, Diesel, Dual, Brayton cycle with intercooling, reheating and regeneration- Calculation of airstandard efficiency and mean effective

More information

CHAPTER 9 GAS POWER CYCLES PART 1. MOHD KAMAL ARIFFIN, Faculty of Mechanical Engineering, UTM, Skudai

CHAPTER 9 GAS POWER CYCLES PART 1. MOHD KAMAL ARIFFIN, Faculty of Mechanical Engineering, UTM, Skudai CHAPER 9 GAS POWER CYCLES PAR MOHD KAMAL ARIFFIN, Faculty of Mechanical Engineering, UM, Sudai OPIC : GAS POWER CYCLES - PAR INRODUCION What is IC Engine? An internal combustion engine is a thermal system

More information

DEPARTMENT OF MECHANICAL ENGINEERING Question Bank ME THERMAL ENGINEERING. Part-A (2 Marks)

DEPARTMENT OF MECHANICAL ENGINEERING Question Bank ME THERMAL ENGINEERING. Part-A (2 Marks) DEPARTMENT OF MECHANICAL ENGINEERING Question Bank ME1351 - THERMAL ENGINEERING UNIT I GAS POWER CYCLES Part-A (2 Marks) 1. What is a thermodynamic cycle? 2. What is meant by air standard cycle? 3.. Name

More information

CHAPTER I GAS POWER CYCLES

CHAPTER I GAS POWER CYCLES CHAPTER I GAS POWER CYCLES 1.1 AIR STANDARD CYCLES Air standard cycles are used for comparison of thermal efficiencies of I.C engines. Engines working with air standard cycles are known as air standard

More information

ME Thermal Engineering Question Bank

ME Thermal Engineering Question Bank ME2301 - Thermal Engineering Question Bank UNIT I GAS POWER CYCLES Otto, Diesel, Dual, Brayton cycles, Calculation of mean effective pressure, and air standard efficiency -Actual and theoretical PV diagram

More information

L34: Internal Combustion Engine Cycles: Otto, Diesel, and Dual or Gas Power Cycles Introduction to Gas Cycles Definitions

L34: Internal Combustion Engine Cycles: Otto, Diesel, and Dual or Gas Power Cycles Introduction to Gas Cycles Definitions Page L: Internal Combustion Engine Cycles: Otto, Diesel, and Dual or Gas Power Cycles Review of Carnot Power Cycle (gas version) Air-Standard Cycles Internal Combustion (IC) Engines - Otto and Diesel Cycles

More information

ME2301 THERMAL ENGINEERING L T P C OBJECTIVE:

ME2301 THERMAL ENGINEERING L T P C OBJECTIVE: ME2301 THERMAL ENGINEERING L T P C 3 1 0 4 OBJECTIVE: To integrate the concepts, laws and methodologies from the first course in thermo dynamics into analysis of cyclic processes To apply the thermodynamic

More information

Analysis of Gas Turbine Heat Integration in Combined Cycle Power Plants. Milton Venetos, Wyatt Enterprises LLC, USA

Analysis of Gas Turbine Heat Integration in Combined Cycle Power Plants. Milton Venetos, Wyatt Enterprises LLC, USA Analysis of Gas Turbine Heat Integration in Combined Cycle Power Plants Milton Venetos, Wyatt Enterprises LLC, USA (milt@wyattllc.com) Marco Dieleman M&N Power Solutions Ltd., Thailand (marco@mandnpower.com)

More information

MEB THERMAL ENGINEERING - I QUESTION BANK UNIT-I PART-A

MEB THERMAL ENGINEERING - I QUESTION BANK UNIT-I PART-A MEB 420 - THERMAL ENGINEERING - I QUESTION BANK UNIT-I Each question carries 1 mark. PART-A 1. Define temperature. 2. Define intensive property 3. Explain the term absolute zero of temperature 4. State

More information

Hours / 100 Marks Seat No.

Hours / 100 Marks Seat No. 17529 14115 3 Hours / 100 Seat No. Instructions (1) All Questions are Compulsory. (2) Answer each next main Question on a new page. (3) Illustrate your answers with neat sketches wherever necessary. (4)

More information

1. (a) If a large power generating station is operating with steam at 16,000 kpa and 500 and exhausting to a condenser at, 37.6 mm mercury absolute;

1. (a) If a large power generating station is operating with steam at 16,000 kpa and 500 and exhausting to a condenser at, 37.6 mm mercury absolute; Sample Questions REVISED SECOND CLASS PARTS B1, B2, AND B3 (NOTE: these questions are intended as representations of the style of questions that may appear on examinations, they are not intended as study

More information

VETRI VINAYAHA COLLEGE OF ENGINEERING AND TECHNOLOGY DEPARTMENT OF MECHANICAL ENGINEERING ME6404 THERMAL ENGINEERING

VETRI VINAYAHA COLLEGE OF ENGINEERING AND TECHNOLOGY DEPARTMENT OF MECHANICAL ENGINEERING ME6404 THERMAL ENGINEERING VETRI VINAYAHA COLLEGE OF ENGINEERING AND TECHNOLOGY DEPARTMENT OF MECHANICAL ENGINEERING ME6404 THERMAL ENGINEERING UNIT I - GAS POWER CYCLES 1. What is a thermodynamic cycle? Thermodynamic cycle is defined

More information

η th W = Q Gas Power Cycles: Working fluid remains in the gaseous state through the cycle.

η th W = Q Gas Power Cycles: Working fluid remains in the gaseous state through the cycle. Gas Power Cycles: Gas Power Cycles: Working fluid remains in the gaseous state through the cycle. Sometimes useful to study an idealised cycle in which internal irreversibilities and complexities are

More information

Heat engine. Heat engine

Heat engine. Heat engine Heat engine Device that transforms heat into work. It requires two energy reservoirs at different temperatures An energy reservoir is a part of the environment so large wrt the system that its temperature

More information

Class Notes on Thermal Energy Conversion System

Class Notes on Thermal Energy Conversion System Class Notes on Thermal Energy Conversion System For the students of Civil & Rural 3 rd semester Ramesh Khanal Assistant Professorr Nepal Engineering College Bhaktapur, Nepal 2015 Course Structure MEC 209.3:

More information

GAS POWER CYCLES. Dr Ali Jawarneh Department of Mechanical Engineering Hashemite University

GAS POWER CYCLES. Dr Ali Jawarneh Department of Mechanical Engineering Hashemite University Chapter 9 GAS POWER CYCLES Dr Ali Jawarneh Department of Mechanical Engineering i Hashemite University 2 Objectives Evaluate the performance of gas power cycles for which h the working fluid remains a

More information

2. Discuss the effects of the following operating variables on detonation

2. Discuss the effects of the following operating variables on detonation Code No: RR220303 Set No. 1 II B.Tech II Semester Regular Examinations, Apr/May 2006 THERMAL ENGINEERING-I ( Common to Mechanical Engineering and Automobile Engineering) Time: 3 hours Max Marks: 80 Answer

More information

Noble Group of Institutions, Junagadh. Faculty of Engineering Department of Mechanical Engineering

Noble Group of Institutions, Junagadh. Faculty of Engineering Department of Mechanical Engineering Semester:1 st Subject: Elements of Mechanical Engineering (2110006) Faculty: Mr. Ishan Bhatt Year: 2017-18 Class: Comp. & IT Ele TUTORIAL 1 INTRODUCTION Q.1 Define: Force, Work, Pressure, Energy, Heat

More information

Evaluating Generation Considering All Plant Losses and Efficiencies Duane H. Morris, P.E. Tennessee Valley Authority

Evaluating Generation Considering All Plant Losses and Efficiencies Duane H. Morris, P.E. Tennessee Valley Authority Evaluating Generation Considering All Plant Losses and Efficiencies Duane H. Morris, P.E. Tennessee Valley Authority James W. Brower Scientech a business unit of Curtiss-Wright Flow Control Company Evaluating

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

GCE AS and A Level. Physics A. AS exams 2009 onwards A2 exams 2010 onwards. Unit 5C: Approved specimen question paper. Version 1.1

GCE AS and A Level. Physics A. AS exams 2009 onwards A2 exams 2010 onwards. Unit 5C: Approved specimen question paper. Version 1.1 GCE AS and A Level Physics A AS exams 2009 onwards A2 exams 2010 onwards Unit 5C: Approved specimen question paper Version 1.1 Surname Other Names Leave blank Centre Number Candidate Number Candidate Signature

More information

Gas Turbine Power Plant

Gas Turbine Power Plant Gas Turbine Power Plant Dr. M. Zahurul Haq Professor Department of Mechanical Engineering Bangladesh University of Engineering & Technology (BUET) Dhaka-1000, Bangladesh zahurul@me.buet.ac.bd http://teacher.buet.ac.bd/zahurul/

More information

EVALUATION OF AN ORC-BASED MICRO-CHP SYSTEM INVOLVING A HERMETIC SCROLL EXPANDER

EVALUATION OF AN ORC-BASED MICRO-CHP SYSTEM INVOLVING A HERMETIC SCROLL EXPANDER EVALUATION OF AN ORC-BASED MICRO-CHP SYSTEM INVOLVING A HERMETIC SCROLL EXPANDER JF. Oudkerk, S. Quoilin and V. Lemort Thermodynamics laboratory Université de Liège Micro Combined heat and power CHP: Produced

More information

SET - 1 II B. Tech II Semester Regular/Supplementary Examinations, April/May-2017 THERMAL ENGINEERING-I (Mechanical Engineering) Time: 3 hours Max. Marks: 70 Note: 1. Question Paper consists of two parts

More information

Hovercraft

Hovercraft 1 Hovercraft 2017-2018 Names: Score: / 44 Show all equations and work. Point values are shown in parentheses at the end of the question. Assume g=9.8 m/s/s for all calculations. Include units in your answer.

More information

Prepared by: Dr. Assim Adaraje

Prepared by: Dr. Assim Adaraje Air-standard cycles Prepared by: Dr. Assim Adaraje CH. 2 ۱ Cold-air-standard assumptions: When the working fluid is considered to be air with constant specific heats at room temperature (25 C). Air-standard

More information

2.61 Internal Combustion Engines

2.61 Internal Combustion Engines Due: Thursday, February 19, 2004 2.61 Internal Combustion Engines Problem Set 2 Tuesday, February 10, 2004 1. Several velocities, time, and length scales are useful in understanding what goes on inside

More information

The Internal combustion engine (Otto Cycle)

The Internal combustion engine (Otto Cycle) The Internal combustion engine (Otto Cycle) The Otto cycle is a set of processes used by spark ignition internal combustion engines (2-stroke or 4-stroke cycles). These engines a) ingest a mixture of fuel

More information

Assignment-1 Air Standard Cycles

Assignment-1 Air Standard Cycles Assignment-1 Air Standard Cycles 1. What do u mean by air standard cycle? List assumptions for air standard cycle & give reasons why air standard cycle differs from actual cycle. 2. Derive an equation

More information

(v) Cylinder volume It is the volume of a gas inside the cylinder when the piston is at Bottom Dead Centre (B.D.C) and is denoted by V.

(v) Cylinder volume It is the volume of a gas inside the cylinder when the piston is at Bottom Dead Centre (B.D.C) and is denoted by V. UNIT II GAS POWER CYCLES AIR STANDARD CYCLES Air standard cycles are used for comparison of thermal efficiencies of I.C engines. Engines working with air standard cycles are known as air standard engines.

More information

Startup and Operation of SEE-THRU Nuclear Power Plant for Student Performance MP-SEE-THRU-01 Rev. 018

Startup and Operation of SEE-THRU Nuclear Power Plant for Student Performance MP-SEE-THRU-01 Rev. 018 Student Operating Procedure Millstone Station Startup and Operation of SEE-THRU Nuclear Power Plant for Student Performance Approval Date: 01/12/2011 Effective Date: 01/12/2011 TABLE OF CONTENTS 1. PURPOSE...3

More information

Page 2. (a) (i) Show that during the change AB the gas undergoes an isothermal change.

Page 2. (a) (i) Show that during the change AB the gas undergoes an isothermal change. Q1.The Carnot cycle is the most efficient theoretical cycle of changes for a fixed mass of gas in a heat engine. The graph below shows the pressure volume (p V) diagram for a gas undergoing a Carnot cycle

More information

Comparison of Air-Standard Atkinson, Diesel and Otto Cycles with Constant Specific Heats

Comparison of Air-Standard Atkinson, Diesel and Otto Cycles with Constant Specific Heats Comparison of Air-Standard Atkinson, Diesel and Otto Cycles with Constant Specific Heats Sethi Upasna Vijay 1, Mansha Kumari 2 1 Assistant Professor, Mechanical Engineering Department, Vadodara Institute

More information

Automobiles. Introductory Question. 6 Questions about Automobiles. Observations about Automobiles. Question 1. Heat Engines

Automobiles. Introductory Question. 6 Questions about Automobiles. Observations about Automobiles. Question 1. Heat Engines Automobiles 1 Automobiles 2 Introductory Question Automobiles A car burns gasoline to obtain energy but allows some heat to escape into the air. Could a mechanically perfect car avoid releasing heat altogether?

More information

Combustion engines. Combustion

Combustion engines. Combustion Combustion engines Chemical energy in fuel converted to thermal energy by combustion or oxidation Heat engine converts chemical energy into mechanical energy Thermal energy raises temperature and pressure

More information

Approved by AICTE, Government of India & affiliated to Dr. A.P.J. Abdul Kalam Technical University, Lucknow Department of Mechanical Engineering

Approved by AICTE, Government of India & affiliated to Dr. A.P.J. Abdul Kalam Technical University, Lucknow Department of Mechanical Engineering Experiment No. - 1 Object: Study and working of four stroke petrol engine. Apparatus Required: S. No. Name of Apparatus Specifications Model of Four stroke petrol engine NA Figure 1: Working of four stroke

More information

ABB PSPG-E7 MODAKOND More efficient and dynamic unit control. ABB Group May 8, 2014 Slide 1 ABB

ABB PSPG-E7 MODAKOND More efficient and dynamic unit control. ABB Group May 8, 2014 Slide 1 ABB ABB PSPG-E7 MODAKOND More efficient and unit control Group May 8, 2014 Slide 1 OPTIMAX MODAKOND Challenge Conventional solution for frequency control (or to improve control performance for flexible plant

More information

PERIODIC-COMBUSTION GAS TURBINE ENGINES (UNITS)

PERIODIC-COMBUSTION GAS TURBINE ENGINES (UNITS) Gas urbine Engines (Units) - V.E.Mihaltzev and V.D.Molyov PERIODIC-COMBUSION GAS URBINE ENGINES (UNIS) V.E.Mihaltzev and V.D.Molyov Moscow State echnical University n.a. Bauman, Russia Keywords: gas turbine

More information

Start the thermodynamic cycle calculation program by double-clicking the KPRO icon.

Start the thermodynamic cycle calculation program by double-clicking the KPRO icon. KPRO 5.0 Showcase Start the thermodynamic cycle calculation program by double-clicking the KPRO icon. Then click File with the mouse and select the New option. You must now specify a name for your heat

More information

VALVE TIMING DIAGRAM FOR SI ENGINE VALVE TIMING DIAGRAM FOR CI ENGINE

VALVE TIMING DIAGRAM FOR SI ENGINE VALVE TIMING DIAGRAM FOR CI ENGINE VALVE TIMING DIAGRAM FOR SI ENGINE VALVE TIMING DIAGRAM FOR CI ENGINE Page 1 of 13 EFFECT OF VALVE TIMING DIAGRAM ON VOLUMETRIC EFFICIENCY: Qu. 1:Why Inlet valve is closed after the Bottom Dead Centre

More information

DEPARTMENT OF MECHANICAL ENGINEERING ME ENGINEERING THERMODYNAMICS TWO MARKS QUESTION AND ANSWER

DEPARTMENT OF MECHANICAL ENGINEERING ME ENGINEERING THERMODYNAMICS TWO MARKS QUESTION AND ANSWER DEPARTMENT OF MECHANICAL ENGINEERING ME 6301- ENGINEERING THERMODYNAMICS TWO MARKS QUESTION AND ANSWER 1. Define the term thermal engineering. Ans: Thermal engineering is the science that deals with the

More information

UNIT IV INTERNAL COMBUSTION ENGINES

UNIT IV INTERNAL COMBUSTION ENGINES UNIT IV INTERNAL COMBUSTION ENGINES Objectives After the completion of this chapter, Students 1. To know the different parts of IC engines and their functions. 2. To understand the working principle of

More information

Lecture 25 HYDRAULIC CIRCUIT DESIGN AND ANALYSIS [CONTINUED]

Lecture 25 HYDRAULIC CIRCUIT DESIGN AND ANALYSIS [CONTINUED] Lecture 5 HYDRAULIC CIRCUIT DESIGN AND ANALYSIS [CONTINUED] 1.1 Circuit for Fast Approach and Slow Die Closing A machine intended for high volume production has a high piston velocity. If not controlled,

More information

Chapter 9. Two important areas of application for thermodynamics GAS POWER CYCLES. Objectives

Chapter 9. Two important areas of application for thermodynamics GAS POWER CYCLES. Objectives Chapter 9 GAS POWER CYCLES Two important areas of application for thermodynamics are power generation and refrigeration. Both are usually accomplished by systems that operate on a thermodynamic cycle.

More information

A student used the apparatus drawn below to investigate the heating effect of an electric heater.

A student used the apparatus drawn below to investigate the heating effect of an electric heater. Q1.(a) A student used the apparatus drawn below to investigate the heating effect of an electric heater. (i) Before starting the experiment, the student drew Graph A. Graph A shows how the student expected

More information

A Homopolar Inductor Motor/Generator and Six-step Drive Flywheel Energy Storage System

A Homopolar Inductor Motor/Generator and Six-step Drive Flywheel Energy Storage System A Homopolar Inductor Motor/Generator and Six-step Drive Flywheel Energy Storage System Perry Tsao, Matt Senesky, Seth Sanders University of California, Berkeley Perry s thesis defense presented www-power.eecs.berkeley.edu

More information

Development Of A Piston-Cylinder Expansion Device For The Transcritical Carbon Dioxide Cycle

Development Of A Piston-Cylinder Expansion Device For The Transcritical Carbon Dioxide Cycle urdue University urdue e-ubs International Refrigeration and Air Conditioning Conference School of Mechanical Engineering 2002 Development Of A iston-cylinder Expansion Device For he ranscritical Carbon

More information

Sustainable Energy Mod.1: Fuel Cells & Distributed Generation Systems

Sustainable Energy Mod.1: Fuel Cells & Distributed Generation Systems Sustainable Energy Mod.1: Fuel Cells & Distributed Generation Systems Dr. Ing. Mario L. Ferrari Thermochemical Power Group (TPG) - DiMSET University of Genoa, Italy : fuel cell systems (hybrid systems)

More information

A-level PHYSICS A PHYA5/2C. Unit 5C Applied Physics. Section B. Tuesday 28 June 2016

A-level PHYSICS A PHYA5/2C. Unit 5C Applied Physics. Section B. Tuesday 28 June 2016 Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature A-level PHYSICS A Unit 5C Applied Physics Section B Tuesday 28 June 2016 Materials For this

More information

PHYA5/2C. General Certificate of Education Advanced Level Examination June Section B. Monday 18 June am to am (JUN12PHYA52C01)

PHYA5/2C. General Certificate of Education Advanced Level Examination June Section B. Monday 18 June am to am (JUN12PHYA52C01) Centre Number Surname Candidate Number For Examinerʼs Use Other Names Candidate Signature Examinerʼs Initials General Certificate of Education Advanced Level Examination June 2012 Question 1 2 Mark Physics

More information

ME3264: LAB 9 Gas Turbine Power System

ME3264: LAB 9 Gas Turbine Power System OBJECTIVE ME3264: LAB 9 Gas Turbine Power System Professor Chih-Jen Sung Spring 2013 A fully integrated jet propulsion system will be used for the study of thermodynamic and operating principles of gas

More information

Electro hydraulic actuating system is a complete modular unit with a wide range of actuator cylinders (type ASM) having a

Electro hydraulic actuating system is a complete modular unit with a wide range of actuator cylinders (type ASM) having a Electro Hydraulic Actuating System 7 Electro hydraulic actuating system is a complete modular unit with a wide range of actuator cylinders (type ASM) having a force of about 100 tonnes and large stroke.

More information

Welcome! Webinar #1: ASSEMBLIES in THERMOFLEX 13 JUNE 2017

Welcome! Webinar #1: ASSEMBLIES in THERMOFLEX 13 JUNE 2017 Welcome! Webinar #1: ASSEMBLIES in THERMOFLEX 13 JUNE 2017 Agenda: * Introduction * HRSG Assembly * Boiler Assembly * Steam Turbine Assembly * Plant Assembly * Q & A Session Presenter: IGNACIO MARTIN (SPAIN)

More information

Heat Engines Lab 12 SAFETY

Heat Engines Lab 12 SAFETY HB 1-05-09 Heat Engines 1 Lab 12 1 i Heat Engines Lab 12 Equipment SWS, 600 ml pyrex beaker with handle for ice water, 350 ml pyrex beaker with handle for boiling water, 11x14x3 in tray, pressure sensor,

More information

Status of HPLWR Development

Status of HPLWR Development Status of HPLWR Development Thomas Schulenberg SCWR System Steering Committee Karlsruhe Institute of Technology Germany What is a Supercritical Water Cooled Reactor? PH HP IP LP PH Produces superheated

More information

Government of Karnataka Department of Technical Education Board of Technical Examinations, Bangalore

Government of Karnataka Department of Technical Education Board of Technical Examinations, Bangalore CIE- 25 Marks Government of Karnataka Department of Technical Education Board of Technical Examinations, Bangalore Prerequisites: Knowledge of basic mathematics and Applied Science Course Objectives: 1.

More information

Scheme G Sample Question Paper Course Name : Diploma in Automobile Engineering Course Code : AE

Scheme G Sample Question Paper Course Name : Diploma in Automobile Engineering Course Code : AE Sample Question Paper Semester : Fourth Marks : 100 Time: 03 Hours Q1.A. Attempt any SIX a. State different types of ideal gas processes 12 Marks b. Define dryness fraction and degree of superheat. c.

More information

UNIT 2 POWER PLANTS 2.1 INTRODUCTION 2.2 CLASSIFICATION OF IC ENGINES. Objectives. Structure. 2.1 Introduction

UNIT 2 POWER PLANTS 2.1 INTRODUCTION 2.2 CLASSIFICATION OF IC ENGINES. Objectives. Structure. 2.1 Introduction UNIT 2 POWER PLANTS Power Plants Structure 2.1 Introduction Objectives 2.2 Classification of IC Engines 2.3 Four Stroke Engines versus Two Stroke Engines 2.4 Working of Four Stroke Petrol Engine 2.5 Working

More information

Theoretical and Experimental Study of an Oil-Free Scroll Vapor Expander

Theoretical and Experimental Study of an Oil-Free Scroll Vapor Expander Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2008 Theoretical and Experimental Study of an Oil-Free Scroll Vapor Expander Bernard Aoun

More information

CONTROL PROBLEMS IN A TURBOCHARGED SPARK-IGNITION ENGINE

CONTROL PROBLEMS IN A TURBOCHARGED SPARK-IGNITION ENGINE Journal of KONES Powertrain and Transport, Vol. 18, No. 3 2011 CONTROL PROBLEMS IN A TURBOCHARGED SPARK-IGNITION ENGINE Wadysaw Mitianiec, uasz Roda Cracow University of Technology Jana Pawla II Av. 37,

More information

Content : 4.1 Brayton cycle-p.v. diagram and thermal efficiency. 4Marks Classification of gas turbines.

Content : 4.1 Brayton cycle-p.v. diagram and thermal efficiency. 4Marks Classification of gas turbines. Content : 4.1 Brayton cycle-p.v. diagram and thermal efficiency. 4Marks Classification of gas turbines. 4.2 Construction and working of gas turbines i) Open cycle ii) Closed cycle gas Turbines, P.V. and

More information

Development, Implementation, and Validation of a Fuel Impingement Model for Direct Injected Fuels with High Enthalpy of Vaporization

Development, Implementation, and Validation of a Fuel Impingement Model for Direct Injected Fuels with High Enthalpy of Vaporization Development, Implementation, and Validation of a Fuel Impingement Model for Direct Injected Fuels with High Enthalpy of Vaporization (SAE Paper- 2009-01-0306) Craig D. Marriott PE, Matthew A. Wiles PE,

More information

2013 THERMAL ENGINEERING-I

2013 THERMAL ENGINEERING-I SET - 1 II B. Tech II Semester, Regular Examinations, April/May 2013 THERMAL ENGINEERING-I (Com. to ME, AME) Time: 3 hours Max. Marks: 75 Answer any FIVE Questions All Questions carry Equal Marks ~~~~~~~~~~~~~~~~~~~~~~~~

More information

Internal Combustion Engines TUTORIAL

Internal Combustion Engines TUTORIAL Internal Combustion Engines TUTORIAL College of Engineering Mechanical Engineering Department Academic Year 2012-2013 Class 3 rd Year Class Subject Lecturer Internal Combustion Engines Dr. Raoof M. Radhi

More information

density ratio of 1.5.

density ratio of 1.5. Problem 1: An 8cyl 426 ci Hemi motor makes 426 HP at 5500 rpm on a compression ratio of 10.5:1. It is over square by 10% meaning that it s stroke is 10% less than it s bore. It s volumetric efficiency

More information

Q2. The diagram shows a network of four 2 Ω resistors. The effective resistance, in Ω, between X and Y is A 0.5 B 1.2 C 1.7. D 2.

Q2. The diagram shows a network of four 2 Ω resistors. The effective resistance, in Ω, between X and Y is A 0.5 B 1.2 C 1.7. D 2. Q1. Three identical cells, each of internal resistance R, are connected in series with an external resistor of resistance R. The current in the external resistor is I. If one of the cells is reversed in

More information

SCIENCE 8. Unit 4 Booklet. Machines and Mechanical Systems

SCIENCE 8. Unit 4 Booklet. Machines and Mechanical Systems SCIENCE 8 Unit 4 Booklet Machines and Mechanical Systems TOPIC 1 REINFORCEMENT Levers Have Class BLM 4-2 Goal Identify items as Class 1, Class 2, or Class 3 levers. Introduction There are three classes

More information

The Mechanical Equivalent of Heat

The Mechanical Equivalent of Heat The Mechanical Equivalent of Heat INTRODUCTION One of the most famous experiments of the 19 th century was Joule s experiment showing that mechanical energy can be converted to heat. This showed that heat

More information

For Sale: Used Steam Turbine Generator Sets. Offer Ref. STG MW Steam Turbine Genset Condensing-Extraction type

For Sale: Used Steam Turbine Generator Sets. Offer Ref. STG MW Steam Turbine Genset Condensing-Extraction type Sonnenberger Str.16 Tel. +49 (0) 611-701888 www.lohrmann.com 65193 Wiesbaden - Germany Fax +49 (0) 611-701895 info@lohrmann.com For Sale: Used Steam Turbine Generator Sets Offer Ref. STG - 25.02 10 MW

More information

'' ''' '' ''' Code No: R R16 SET - 1

'' ''' '' ''' Code No: R R16 SET - 1 Code No: R161232 R16 SET - 1 1. a) List the Primary requirements of a Steam Boiler. (2M) b) What are the distinguishing features between a Casting and a Pattern? (2M) c) Define (i) Brake Power; (ii) Indicated

More information

Assignment-1 Introduction

Assignment-1 Introduction Assignment-1 Introduction 1. Compare S.I. engines with C.I engines. 2. Explain with the help of neat sketch, the working of a 2-stroke petrol engine. 3. Derive an equation of efficiency, work output and

More information

Additional examination-style questions

Additional examination-style questions 1 Figure 1 shows a remote-control camera used in space for inspecting space stations. The camera can be moved into position and rotated by firing thrusters which eject xenon gas at high speed. The camera

More information

Mitsubishi Hitachi Power Systems America. Coal to Gas Conversions

Mitsubishi Hitachi Power Systems America. Coal to Gas Conversions Mitsubishi Hitachi Power Systems America Coal to Gas Conversions Joe Brown AMS Product Manager 9/28/15 MITSUBISHI HITACHI POWER SYSTEMS AMERICAS, INC. Units Faced with Environmental Challenges Shut Down

More information

AP Plant Operational Transient Analysis

AP Plant Operational Transient Analysis www.ijnese.org International Journal of Nuclear Energy Science and Engineering Volume 3 Issue 2, June 2013 AP1000 1 Plant Operational Transient Analysis LIU Lixin 1, ZHENG Limin 2 Shanghai Nuclear Engineering

More information

Scheme - G. Sample Test Paper-I. Course Name : Diploma in Mechanical Engineering Course Code : ME Semester : Fifth Subject Title : Power Engineering

Scheme - G. Sample Test Paper-I. Course Name : Diploma in Mechanical Engineering Course Code : ME Semester : Fifth Subject Title : Power Engineering Sample Test Paper-I Marks : 25 Time:1 hour Q1. Attempt any Three 3X3=9 a) Define i) Mean Effective Pressure ii) Piston Speed iii) Swept Volume b) Draw Carnot cycle on P-V and T-S Diagram c) State the need

More information

MITSUBISHI DIESEL ENGINE IFM NO. JN (1/6) TECHNICAL INFORMATION DATE Aug. 8, 2002

MITSUBISHI DIESEL ENGINE IFM NO. JN (1/6) TECHNICAL INFORMATION DATE Aug. 8, 2002 DIESEL ENGINE IFM NO. JN02411-011(1/6) TECHNICAL INFORMATION DATE Aug. 8, 2002 TITLE Specification Sheets of S6U-MPTK Engine (IMO Certified Engine) Specification Sheets of S6U-MPTK Engine that is satisfied

More information

Chapter 15. Inertia Forces in Reciprocating Parts

Chapter 15. Inertia Forces in Reciprocating Parts Chapter 15 Inertia Forces in Reciprocating Parts 2 Approximate Analytical Method for Velocity & Acceleration of the Piston n = Ratio of length of ConRod to radius of crank = l/r 3 Approximate Analytical

More information

Internal Combustion Engine

Internal Combustion Engine Internal Combustion Engine 1. A 9-cylinder, 4-stroke cycle, radial SI engine operates at 900rpm. Calculate: (1) How often ignition occurs, in degrees of engine rev. (2) How many power strokes per rev.

More information