DIPLOMA THERMAL ENGINEERING LAB MECH ENGG

THERMAL ENGINEERING LAB
Author:DTE BOARD
Subject Title                          :           Thermal Engineering lab

Subject Code                 :       

Periods/Week                      :           06
Periods/Semester                 :           96

TIME SCHEDULE
S. No.
Name of Experiment
No of Hours allotted
1
Calorific value of  Liquid and gaseous fuel by using Bomb calorimeter /Boy’s gas calorimeter
06
2
Draw Valve timing diagram for  4-stroke diesel engine
06
3
Draw Port  timing diagram for  2-stroke petrol engines
06
4
Conduct Performance test on single cylinder diesel engine at different loads
06
5
Conduct Performance test on petrol engine at different loads
06
6
Conduct morse test to determine the indicated power of individual cylinders
12
7
Conduct a performance test on multi stage reciprocating compressor
12
8
Conduct performance test on refrigeration kit to determine COP of the refrigerator
06
9
Thermal conductivity test on 1) Thick slab
                                               2) Composite wall
                                               3) Thick cylinder
10
10
Study of petrol and diesel engine components and Models
06
11
Study of high pressure boiler with model
03
12
Study of boiler mountings and accessories
06

Industry innovations
05

Tests and Revisions
06
                                                                                    Total                                   96

OBJECTIVES

The main objective of this lab is to know working of various IC Engines. In this lab the students can see various parts of different engines and physically and can understand the engine working in a better manner as compared to theoretical. By under going this lab the students will get enough confident about all the types of IC engines parts, so that they can rectify some sort of problems normally occurring in their automobiles.
On Completion of the Course, the student should be able to:
1.        Appreciate the practical applications of Bomb calorimeter /Boy’s gas calorimeter
2.        Appreciate the Mechanism of valve  functioning in 4-stroke diesel engine
3.        Appreciate the Mechanism of ports functioning in 2-stroke petrol engine
4.        Understand the method of evaluating the performance characteristics of single cylinder diesel engine at different loads and draw the heat balance sheet
5.        Understand the method of evaluating the performance characteristics of single cylinder petrol engine at different loads
6.        Understand the method of finding the indicated power of individual cylinders of an engine by using morse test
7.       Understand the method of evaluating the performance characteristics Multi stage air compressor
8.       Understand the method of evaluating the co efficient of performance of refrigerator
9.        Understand the method of finding the thermal conductivity of material
10.  Study of petrol and diesel engine components and Models
11.  Study of high pressure boiler with model
12.  Study of boiler mountings and accessories
COURSE CONTENTS

1.      Determination of calorific value of liquid and gaseous fuel by using Bomb calorimeter /Boy’s gas calorimeter
2.      Draw the valve  timing diagram  of  4-stroke diesel engine
3.       Draw the port  timing diagram  of  2-stroke petrol engine
4.      Plot the performance characteristics of single cylinder diesel engine for different loads
5.      Draw the heat balance sheet of  single cylinder diesel engine
6.      Plot the performance characteristics of single cylinder petrol engine for different loads
7.      Finding the indicated power of individual cylinders of an engine by using MORSE test
8.      Determine the volumetric efficiency of air compressor
9.     Determine the co efficient of performance of refrigerator
10.  Determine thermal conductivity of thick slab
11.  Determine thermal conductivity of composite wall
12.  Determine thermal conductivity of thick cylinder
13.      Study of petrol and diesel engine components and Models
14.      Study of high pressure boiler with model
15.      Study of boiler mountings and accessories
SCHEME OF VALUATION

Serial no
Description
Marks

1
Writing procedure
      a) One major experiment
       b) Individual experiment

20
2
Conducting of Experiment
a)Major Experiment
(Group of Five)
        b) Individual experiment

25
3
Calculation,results,Inference(Both experiments)
35
4
Viva
20
                                                                           Total                                               100

List of Equipments
Serial no
Description
Quantity

1
Bomb calorimeter
1
2
Boys gas calorimeter
1
3
2- Stroke , Single- Cylinder petrol engine test rig
1
4
4 –Stroke , Three – cylinder petrol engine test rig(Morse test)
1
5
4 – Stroke , Single cylinder diesel engine test rig with Exhaust Gas Calorimeter
1
6
2 Stage reciprocating air compressor
1
7
Refrigeration unit
1
8
Thermal Conductivity Apparatus- Thick slab
1
9
Thermal Conductivity Apparatus- Composite wall
1
10
Thermal Conductivity Apparatus- Thick cylinder
1
11
Cut section models – petrol engine and diesel engine
2
12
 Boiler models
1


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