|
|
|
- Fay Robertson
- 5 years ago
- Views:
Transcription
1 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 (Part-A and Part-B) 2. Answer ALL the question in Part-A 3. Answer any THREE Questions from Part-B ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ PART A 1. a) What is heat loss factor? (3M) b) What do you understand by supercharging? (4M) c) What are the different types of combustion chambers used in SI engine? (4M) d) Define specific fuel consumption. (3M) e) Draw the p-v and T-s diagram for a single acting reciprocating air compressor. (4M) f) What is the difference between rotary and reciprocating compressor? (4M) PART -B 2. a) Explain why actual cycle efficiency is much lower than the air standard cycle efficiency. b) Discuss the various factors affecting the volumetric efficiency. 3. a) With a neat sketch explain the working principle of a simple carburetor. b) Discuss the various characteristics of an efficient cooling system. 4. a) Explain briefly the effect of different factors on knock in SI engines? b) Explain the term delay period as referred to CI engines. Explain the effect of speed and fuel-air ratios on delay period of CI engines. 1 of 2
2 SET a) What is the use of heat balance sheet of an engine? Discuss the various items to be determined to complete the heat balance sheet. b) A trial was conducted on a single-cylinder oil engine having a cylinder diameter of 30 cm and stroke 45 cm. The engine is working on the four-stroke cycle and the following observations were made: Duration of trial = 54 minutes Total fuel used = 7 liters Calorific value = 42 MJ/kg Total number of revolution = Gross imep = 7.25 bar Pumping imep = 0.35 bar Net load on the brake = 150 kg Diameter of the brake wheel drum = 1.78 m Diameter of the rope = 4 cm Cooling water circulated = 550 liters Cooling water temperature rise = 48 0 C Specific heat of water = 4.18 kj/kg K Specific gravity of oil = 0.8 Calculate the mechanical efficiency and also the unaccounted losses 6. a) Derive the expression for work done when compression is isothermal for a single stage reciprocating air compressor. b) An air compressor takes in air at 1 bar and 20 0 C and compresses it according to law pv 1.2 =constant. It is then delivered to a receiver at a constant pressure of 10 bar. R= kj/kg K. Determine: (i) Temperature at the end of compression; (ii) Work done and heat transferred during compression per kg of air. 7. a) Explain, with a neat sketch, the working of a centrifugal compressor and obtain an expression for the work done. b) A rotary air compressor working between 1 bar and 2.5 bar has internal and external diameters of impeller as 300 mm and 600 mm respectively. The vane angle at inlet and outlet are 30 0 and 45 0 respectively. If the air enters the impeller at 15 m/s, find: i) speed of the impeller in rpm and ii) work done by the compressor per kg of air. (6M) 2 of 2
3 SET - 2 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 (Part-A and Part-B) 2. Answer ALL the question in Part-A 3. Answer any THREE Questions from Part-B ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ PART A 1. a) What is time loss factor? (3M) b) What do you understand by turbo charging? (4M) c) Explain how are SI engine fuels are rated? (4M) d) Define mean effective pressure. (3M) e) State the conditions which lower the volumetric efficiency of a single acting (4M) reciprocating air compressor. f) Differentiate between centrifugal compressor and axial flow compressor. (4M) PART -B 2. a) Explain the differences between actual and ideal fuel air cycles of C.I. engines. b) Discuss the optimum opening position of exhaust valve to reduce the exhaust blow-down loss. 3. a) Discuss the various important qualities of a good ignition system? b) Explain (i) Thermo-syphon cooling system (ii) Pressure cooling system 4. a) Discuss the desirable characteristics of a good combustion chamber for an SI engine. b) Classify and explain the CI engine combustion chambers. 5. a) Enumerate the various engine efficiencies. Explain? (6M) b) A gasoline engine working on four stroke develops a brake power of 20.9 kw. A Morse test was conducted on this engine and the brake power (kw) obtained when each cylinder was made inoperative by short circulating the spark plug are 14.9, 14.3, 14.8 and 14.5 respectively. The test was conducted at constant speed. Find the indicator power, mechanical efficiency and bmep when all the cylinders are firing. The bore of the engine is 75 mm and the stroke is 90 mm. The engine is running at 3000 rpm. 1 of 2
4 SET a) Explain the effect of intercooling in multi-stage reciprocating compressor. (6M) b) A single-stage double-acting air compressor is required to 14 m 3 of air per minute measured at bars and 15 0 C. The delivery pressure is 7 bar and the speed 300 rpm. Take the clearance volume as 5% of the swept volume with the compression and expansion index of n=1.3. Calculate: (i) Swept volume of the cylinder (ii) The delivery temperature (iii) Indicated power 7. a) Explain in detail the construction and working of Lysholm compressor. b) A centrifugal air compressor having a pressure compression ratio of 5 compresses air at the rate of 10 kg/s. If the initial pressure and temperature of the air is 1 bar and 20 0 C, find (i) the final temperature of the gas and (ii) power required to drive the compressor. Take ɣ=1.4 and C p =1 kj/kg K. 2 of 2
5 SET - 3 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 (Part-A and Part-B) 2. Answer ALL the question in Part-A 3. Answer any THREE Questions from Part-B ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ PART A 1. a) What is rubbing friction loss? (3M) b) Discuss the need and importance of cooling an IC engine. (4M) c) Explain how CI engine fuels are rated? (4M) d) What do you understand by calorific value of the fuel? (3M) e) What do you mean by multi-stage compression? State its advantages. (4M) f) Define isothermal efficiency of air compressor. (4M) PART -B 2. a) Explain in detail about exhaust blow-down and loss due to gas exchange process. b) How does the composition of exhaust gases vary for various fuel air ratios in a gasoline engine? 3. a) Derive an expression for air fuel ratio of a simple carburetor? b) With a neat sketch, explain the battery ignition system? 4. a) Discuss the various methods for improving the anti-knock quality of an SI engine. b) Explain and discuss the phenomenon of diesel knock in CI engines and compare the same with detonation in SI engines. 5. a) Explain Rope brake dynamometer to determine the brake power of an engine? (6M) b) A six cylinder, four-stroke gasoline engine having a bore of 90 mm and stroke of 100 mm has a compression ratio 7. The relative efficiency is 55% when the indicated specific fuel consumption is 300 gm/kw h. Estimate (i) the calorific value of the fuel and (ii) corresponding fuel consumption, given that imep is 8.5 bar and speed is 2500 rpm. 1 of 2
6 SET a) Derive the expression for work done when compression is isentropic for a single stage reciprocating air compressor. b) A single-stage single-acting air compressor delivers 0.6 kg of air per minute at 6 bar. The temperature and pressure at the end of suction stroke are 30 0 C and 1 bar. The bore and stroke of the compressor are 100 mm and 150 mm respectively. The clearance is 3% of the swept volume. Assuming the index of compression and expansion to be 1.3, find: (i) Volumetric efficiency of the compressor (ii) Power required if the mechanical efficiency is 85%, and (iii) Speed of the compressor (rpm). 7. a) Derive an expression for efficiency of a Roots blower in terms of pressure ratio and ratio of specific heats. b) A centrifugal air compressor having isentropic efficiency of 70% receives air at 17 0 C. If the outer diameter of the blade tip is 1 m and the compressor runs at 5000 rpm find: (i) The temperature rise of the air and (ii) the static pressure ratio. (6M) (6M) 2 of 2
7 SET - 4 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 (Part-A and Part-B) 2. Answer ALL the question in Part-A 3. Answer any THREE Questions from Part-B ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ PART A 1. a) What do you understand by volumetric efficiency of an IC engine? (3M) b) Discuss the need for lubricating an IC engine. (4M) c) How does the injection timing and fuel quality affect the engine knock? (4M) d) Define mechanical efficiency of an IC engine. (3M) e) Discuss the classification of air compressors. (4M) f) Define isentropic efficiency of air compressor. (4M) PART -B 2. a) Discuss the various assumptions used in fuel-air cycle analysis? b) From the point of view of fuel-air analysis how does fuel-air ratio affect efficiency, maximum power, temperature and pressure in a cycle. 3. a) How are injection systems classified? Describe them briefly. b) Explain the principle of Wankle engine? 4. a) What are the basic parameters that influence the flame speed? Discuss the influence of engine variables on the flame speed? b) What is diesel knock? How to minimize knocking in CI engine? 5. a) With the help of a neat sketch, the working of a mechanical indicator to determine the indicated power of an engine? b) A four-stroke, four-cylinder gasoline engine has a bore of 60 mm and a stroke of 100 mm. on test it develops a torque of 66.5 Nm when running at 3000 rpm. If the clearance volume in each cylinder is 60 cc the relative efficiency with respect to brake thermal efficiency is 0.5 and the calorific value of the fuel is 42 MJ/kg, determine the fuel consumption in kg/h and the brake mean effective pressure. (6M) 1 of 2
8 Powered by TCPDF ( SET a) Discuss briefly a two stage air compressor with inter cooler. (6M) b) A two-cylinder single-acting air compressor is to deliver 16 kg of air per minute at 7 bars from suction conditions 1 bar and 15 0 C. Clearance may be taken as 4% of stroke volume and the index for both compression and re-expansion as 1.3. Compressor is directly coupled to a four-cylinder four-stroke petrol engine which runs at 2000 rpm with a brake mean effective pressure of 5.5 bar. Assuming a stroke-bore ratio of 1.2 for both engine and compressor and a mechanical efficiency of 82% for compressor, calculate the required cylinder dimensions 7. a) Describe with a neat sketch, the working of a vane blower compressor and show its p-v diagram. For what applications, it is used? b) A centrifugal compressor with 70% isentropic efficiency delivers 20 kg of air per minute at a pressure of 3 bar. If the compressor receives air at 20 0 C and at a pressure of 1 bar, find the actual temperature of the air at exit. Also find the power required to run the compressor, if its mechanical efficiency is 95%. Take ɣ and C p for air as 1.4 and 1 kj/kg K respectively. 2 of 2
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 ~~~~~~~~~~~~~~~~~~~~~~~~
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
(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]](/thumbs/79/80273804.jpg "(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
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
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
B.Tech. - VIEP - MECHANICAL ENGINEERING (BTMEVI) Term-End Examination June 2016
No. of Printed Pages : 5 I BIME-010 I B.Tech. - VIEP - MECHANICAL ENGINEERING (BTMEVI) 00 1 Ems, Term-End Examination June 2016 BIME-010 : THERMAL ENGINEERING Time : 3 hours Maximum Marks : 70 Note : Attempt
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
AT AUTOMOTIVE ENGINES QUESTION BANK
AT6301 - AUTOMOTIVE ENGINES QUESTION BANK UNIT I: CONSTRUCTION & WORKING PRINCIPLE OF IC ENGINES 1. State the application of CI engines? 2. What is Cubic capacity of an engine? 3. What is the purpose of
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
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)
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
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
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
GOVERNMENT ENGINEERING COLLEGE, GODHRA
Practical No. - 1 To understand construction and working of various types of Steam boilers. 1) What is the function of Steam boiler? And what are factors should be considered while selecting a boiler?
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
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
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
Model Question Papers
QUESTION CARRIES 2 MARKS Model Question Papers 1. Define engine. Give their classification? 6 th Semester I.C. ENGINE [ME-604] UNIT -1 2. Define the performance parameters of IC engine ie indicated power,
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
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
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.
AT 2303 AUTOMOTIVE POLLUTION AND CONTROL Automobile Engineering Question Bank
AT 2303 AUTOMOTIVE POLLUTION AND CONTROL Automobile Engineering Question Bank UNIT I INTRODUCTION 1. What are the design considerations of a vehicle?(jun 2013) 2..Classify the various types of vehicles.
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
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.
INSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigal, Hyderabad
INSTITUTE OF ERONUTIL ENGINEERING (utonomous) Dundigal, Hyderabad -500 043 MEHNIL ENGINEERING QUESTION BNK ourse Name : THERML ENGINEERING-I ourse ode : 40313 lass : II B. Tech II Semester Branch : Mechanical
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
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
Principles of Engine Operation. Information
Internal Combustion Engines MAK 4070E Principles of Engine Operation Prof.Dr. Cem Soruşbay Istanbul Technical University Information Prof.Dr. Cem Soruşbay İ.T.Ü. Makina Fakültesi Motorlar ve Taşıtlar Laboratuvarı
'' ''' '' ''' 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
Kul Internal Combustion Engine Technology. Definition & Classification, Characteristics 2015 Basshuysen 1,2,3,4,5
Kul-14.4100 Internal Combustion Engine Technology Definition & Classification, Characteristics 2015 Basshuysen 1,2,3,4,5 Definitions Combustion engines convert the chemical energy of fuel to mechanical
AME 436. Energy and Propulsion. Lecture 6 Unsteady-flow (reciprocating) engines 1: Basic operating principles, design & performance parameters
AME 436 Energy and Propulsion Lecture 6 Unsteady-flow (reciprocating) engines 1: Basic operating principles, design & performance parameters Outline Classification of unsteady-flow engines Basic operating
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
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
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
COVENANT UNIVERSITY NIGERIA TUTORIAL KIT OMEGA SEMESTER PROGRAMME: MECHANICAL ENGINEERING
COVENANT UNIVERSITY NIGERIA TUTORIAL KIT OMEGA SEMESTER PROGRAMME: MECHANICAL ENGINEERING COURSE: MCE 320 DISCLAIMER The contents of this document are intended for practice and leaning purposes at the
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
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
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
BASIC CIVIL & MECHANICAL ENGINEERING
SHRI ANGALAMMAN COLLEGE OF ENGINEERING AND TECHNOLOGY (An ISO 9001:2000 Certified Institution) SIRUGANOOR, TIRUCHIRAPPALLI 621 105 DEPARTMENT OF MECHANICAL ENGINEERING FS81504 BASIC CIVIL & MECHANICAL
Please welcome for any correction or misprint in the entire manuscript and your valuable suggestions kindly mail us
Problems of Practices Of Basic and Applied Thermodynamics I. C. Engine Prepared By Brij Bhooshan Asst. Professor B. S. A. College of Engg. And Technology Mathura, Uttar Pradesh, (India) Supported By: Purvi
2.61 Internal Combustion Engine Final Examination. Open book. Note that Problems 1 &2 carry 20 points each; Problems 3 &4 carry 10 points each.
2.61 Internal Combustion Engine Final Examination Open book. Note that Problems 1 &2 carry 20 points each; Problems 3 &4 carry 10 points each. Problem 1 (20 points) Ethanol has been introduced as the bio-fuel
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
AME 436. Energy and Propulsion. Lecture 6 Unsteady-flow (reciprocating) engines 1: Basic operating principles, design & performance parameters
AME 436 Energy and Propulsion Lecture 6 Unsteady-flow (reciprocating) engines 1: Basic operating principles, design & performance parameters Outline Classification of unsteady-flow engines Basic operating
Internal Combustion Engines
Introduction Lecture 1 1 Outline In this lecture we will learn about: Definition of internal combustion Development of the internal combustion engine Different engine classifications We will also draw
Applied Thermodynamics Internal Combustion Engines
Applied Thermodynamics Internal Combustion Engines Assoc. Prof. Dr. Mazlan Abdul Wahid Faculty of Mechanical Engineering Universiti Teknologi Malaysia www.fkm.utm.my/~mazlan 1 Coverage Introduction Operation
MAHARASHTRA STATE BOARD OF TECHNICAL EDUCATION
Subject Code: 708 Model Answer Page No: / Important Instructions to examiners: ) The answers should be examined by key words and not as word-to-word as given in the model answer scheme. ) The model answer
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
Chapter 6. Supercharging
SHROFF S. R. ROTARY INSTITUTE OF CHEMICAL TECHNOLOGY (SRICT) DEPARTMENT OF MECHANICAL ENGINEERING. Chapter 6. Supercharging Subject: Internal Combustion Engine 1 Outline Chapter 6. Supercharging 6.1 Need
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
SAMPLE STUDY MATERIAL
IC Engine - ME GATE, IES, PSU 1 SAMPLE STUDY MATERIAL Mechanical Engineering ME Postal Correspondence Course Internal Combustion Engine GATE, IES & PSUs IC Engine - ME GATE, IES, PSU 2 C O N T E N T 1.
(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.
Chapter 1 Internal Combustion Engines
Chapter 1 Internal Combustion Engines 1.1 Performance Parameters Engine performance parameters can be measured by two means; the indicator equipment or the dynamometer. The indicator system consists of
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
Comparative Study Of Four Stroke Diesel And Petrol Engine.
Comparative Study Of Four Stroke Diesel And Petrol Engine. Aim: To study the construction and working of 4- stroke petrol / diesel engine. Theory: A machine or device which derives heat from the combustion
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
LABORATORY MANUAL I. C. ENGINES & GAS TURBINES (ME-317-E)
LABORATORY MANUAL I. C. ENGINES & GAS TURBINES (ME-317-E) LIST OF EXPERIMENTS S.No. Name of the Experiment 1. To study the constructional details & working principles of two-stroke petrol/ four-stroke
SCHOOL OF COMPUTING, ENGINEERING AND MATHEMATICS SEMESTER 2 EXAMINATIONS 2013/2014 ME110. Aircraft and Automotive Systems
s SCHOOL OF COMPUTING, ENGINEERING AND MATHEMATICS SEMESTER 2 EXAMINATIONS 2013/2014 ME110 Aircraft and Automotive Systems Time allowed: TWO hours Answer TWO questions from THREE in Section A and TWO questions
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:
MAHARASHTRA STATE BOARD OF TECHNICAL EDUCATION (Autonomous) Summer 15 EXAMINATION Subject Code: Model Answer Page No: 1/18
Subject Code: 708 Model Answer Page No: /8 Important Instructions to examiners: ) The answers should be examined by key words and not as word-to-word as given in the model answer scheme. ) The model answer
4. With a neat sketch explain in detail about the different types of fuel injection system used in SI engines. (May 2016)
SYED AMMAL ENGINEERING COLLEGE (Approved by the AICTE, New Delhi, Govt. of Tamilnadu and Affiliated to Anna University, Chennai) Established in 1998 - An ISO 9001:2000 Certified Institution Dr. E.M.Abdullah
Thermal Engines (Motores Térmicos)
Thermal Engines (Motores Térmicos) Tutorials Time schedule Hour/Day Monday Tuesday Wednesday Thursday Friday 11:00 12:00 MT MT MT 1 Tutorial 1 Engine Parts and Components Engine performance maps The reciprocating
Internal Combustion Engine. Prepared by- Md Ferdous Alam Lecturer, MEE, SUST
Internal Combustion Engine Prepared by- Md Ferdous Alam Lecturer, MEE, SUST What is an Engine? -a machine designed to convert one form of energy into mechanical energy Two types of engines : 1. Internal
Department of Mechanical Engineering UBMC701 AUTOMOBILE ENGINEERING QUESTION BANK VEHICLE STRUCTURE AND ENGINES. Part A (Two Marks Questions)
Department of Mechanical Engineering UBMC701 AUTOMOBILE ENGINEERING QUESTION BANK UNIT- I VEHICLE STRUCTURE AND ENGINES 1. Define Automobile. Give the typical specifications of an automobile 2. Name the
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.
ACTUAL CYCLE. Actual engine cycle
1 ACTUAL CYCLE Actual engine cycle Introduction 2 Ideal Gas Cycle (Air Standard Cycle) Idealized processes Idealize working Fluid Fuel-Air Cycle Idealized Processes Accurate Working Fluid Model Actual
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
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
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
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
Template for the Storyboard stage
Template for the Storyboard stage Animation can be done in JAVA 2-D. Mention what will be your animation medium: 2D or 3D Mention the software to be used for animation development: JAVA, Flash, Blender,
Al-Balqa Applied University
تا سست عام 997 Specialization Common Course Number 202073 Course Title Internal Combustion Engines Credit Hours 3 Theoretical Hours 3 Practical Hours 0 صفحة () من (0) تا سست عام 997 Brief Course Description:
Internal Combustion Engines
Lecture-19 Prepared under QIP-CD Cell Project Internal Combustion Engines Ujjwal K Saha, Ph.D. Department of Mechanical Engineering Indian Institute of Technology Guwahati 1 Background The power output
Important Instructions to examiners: 1) The answers should be examined by key words and not as word-to-word as given in the model answer scheme. 2) The model answer and the answer written by candidate
Introduction to I.C Engines CH. 1. Prepared by: Dr. Assim Adaraje
Introduction to I.C Engines CH. 1 Prepared by: Dr. Assim Adaraje 1 An internal combustion engine (ICE) is a heat engine where the combustion of a fuel occurs with an oxidizer (usually air) in a combustion
PERFORMANCE ANALYSIS OF SUPERCHARGING PROCESS IN SI ENGINE & CI ENGINE AND APPLICATION OF SUPERCHARGER
PERFORMANCE ANALYSIS OF SUPERCHARGING PROCESS IN SI ENGINE & CI ENGINE AND APPLICATION OF SUPERCHARGER Prakash Kumar Sen 1, Rohit Jaiswal 2, Shailendra Kumar Bohidar 3 1 Student of M.Tech Manufacturing
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
SUPERCHARGER AND TURBOCHARGER
SUPERCHARGER AND TURBOCHARGER 1 Turbocharger and supercharger 2 To increase the output of any engine more fuel can be burned and make bigger explosion in every cycle. i. One way to add power is to build
ME 74 AUTOMOTIVE POLLUTION AND CONTROL Automobile Engineering-vii sem Question Bank( )
ME 74 AUTOMOTIVE POLLUTION AND CONTROL Automobile Engineering-vii sem Question Bank(2013-2014) UNIT I INTRODUCTION 1. How the transient operation of S.I engine will cause CO formation? (may /June 2007)
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
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
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
B. Tech Degree II Semester Examination in Polymer Science and
BT PSRT 9 14 PTF 123 MECHANICAL ENGINEERING PART - A (Answer any FIVE questions) 9) (5 x 5 = 25) What are the general classification of engineering materials? Give three examples for each group. What are
MODEL QUESTION PAPER
MODEL QUESTION PAPER B.E. AUTOMOBILE ENGINEERING SEMESTER V AT 335 - AUTOMOTIVE TRANSMISSION Time: 3 Hours Max. Marks: 100 Answer ALL Questions PART A (10 x 2 = 20 Marks) 1. What are the requirements of
PART B - UNIT I - VEHICLE STRUCTURE AND ENGINES
BHARATHIDASAN ENGINEERING COLLEGE, NATTRAMPALLI 635854. DEPARTMENT OF MECHANICAL ENGINEERING ME 6602 AUTOMOBILE ENGINEERING FREQUENTLY ASKED QUESTIONS PART A - UNIT I - VEHICLE STRUCTURE AND ENGINES 1.
Operating Characteristics
Chapter 2 Operating Characteristics 2-1 Engine Parameters 2-22 Work 2-3 Mean Effective Pressure 2-4 Torque and Power 2-5 Dynamometers 2-6 Air-Fuel Ratio and Fuel-Air Ratio 2-7 Specific Fuel Consumption
Simple Finite Heat Release Model (SI Engine)
Simple Finite Heat Release Model (SI Engine) Introduction In the following, a finite burn duration is taken into account, in which combustion occurs at θ soc (Start Of Combustion), and continues until
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
B.TECH III Year I Semester (R09) Regular & Supplementary Examinations November 2012 DYNAMICS OF MACHINERY
1 B.TECH III Year I Semester (R09) Regular & Supplementary Examinations November 2012 DYNAMICS OF MACHINERY (Mechanical Engineering) Time: 3 hours Max. Marks: 70 Answer any FIVE questions All questions
ICAL ENG LAB MANUAL. Dharmapuri Regulation : 2013 Branch : B.E. - Mechanical Engineering Year & Semester: II Year / IV Semester VVIT
Dharmapuri 636 703 LAB MANUAL Regulation : 2013 Branch : B.E. - Mechanical Engineering Year & Semester: II Year / IV Semester ME6412 -THERMAL ENGINEERING LABORATORY - I ICAL ENG 1 GENERAL INSTRUCTION All
EEN-E2002 Internal Combustion Definitions and Characteristics, lecture 3. January 2017, Martti Larmi
EEN-E2002 Internal Combustion Definitions and Characteristics, lecture 3 January 2017, Martti Larmi Textbooks on Internal Combustion Internal combustion engine handbook : basics, components, systems, and
Unit WorkBook 4 Level 4 ENG U13 Fundamentals of Thermodynamics and Heat Engines UniCourse Ltd. All Rights Reserved. Sample
Pearson BTEC Levels 4 Higher Nationals in Engineering (RQF) Unit 13: Fundamentals of Thermodynamics and Heat Engines Unit Workbook 4 in a series of 4 for this unit Learning Outcome 4 Internal Combustion
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
Internal Combustion Engines
Air and Fuel Induction Lecture 3 1 Outline In this lecture we will discuss the following: A/F mixture preparation in gasoline engines using carburetion. Air Charging technologies: Superchargers Turbochargers
Natural gas engine E 0836 LE 202 Technical data
Page 1 Principle: No of cylinders : Supercharging: Mixture cooling: Engine cooling : Lubrication : Spark plugs: Starter motor: 4-stroke Otto gas engine 6 in line Exhaust turbocharger with water-cooled
UNIVERSITY POLYTECHNIC B.I.T., MESRA, RANCHI
COURSE STRUCTURE SEMESTER V (Total Unit 7.0) Course Code Theory Unit Course Code Sessional Unit DMM 5001 Automobile Engineering 1.0 DMM 5002 Automobile Engineering 0.5 Lab. DMM 5003 CAD/CAM 1.0 DMM5004
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,
WINTER -14 EXAMINATION Subject Code: Model Answer Page No: 1/22
(ISO/IEC - 700-005 Certified) WINTER - EXAMINATION Subject Code: 708 Model Answer Page No: / Important Instructions to examiners: ) The answers should be examined by key words and not as word-to-word as
Aircraft Propulsion Technology
Unit 90: Aircraft Propulsion Technology Unit code: L/601/7249 QCF level: 4 Credit value: 15 Aim This unit aims to develop learners understanding of the principles and laws of aircraft propulsion and their
Simulation of Performance Parameters of Spark Ignition Engine for Various Ignition Timings
Research Article International Journal of Current Engineering and Technology ISSN 2277-4106 2013 INPRESSCO. All Rights Reserved. Available at http://inpressco.com/category/ijcet Simulation of Performance
Internal Combustion Engines
Engine Cycles Lecture Outline In this lecture we will: Analyse actual air fuel engine cycle: -Stroke cycle -Stroke cycle Compare these cycles to air standard cycles Actual Engine Cycle Although air standard