About the Laboratory

Heat Engines lab has been an integral part of the Department of Mechanical Engineering since 1963. The lab aims to provide knowledge of heat engines and related equipment to UG and PG students and to inculcate in them the experimentation skills required for their professional careers. The facilities are also used extensively for research and consultancy projects.This lab is used for the experiments in the courses viz. Heat Engines Laboratory (ME4091D) for B.Tech in Mechanical Engineering and Thermal Engineering Laboratory (ME6292D) for M.Tech in Thermal Sciences. The equipment in the lab is also related to the contents of the theory courses Thermal Engineering I(ME3003D), Automobile Engineering (ME3032D) and Analysis of Internal Combustion Engines (ME6227D). The lab is used by a large number of UG and PG students for their projects. The Heat Engines lab is one of the largest in the department, with a floor area of 900 sq.m. and accommodates a variety of internal combustion engines in addition to other thermal engineering equipment (e.g. boiler, gasifier, compressors, wind tunnel etc.). It has a good collection of automobile components and demo models to help students understand their intricate details. Apart from the research scholars, PG and under-graduate students of NITC are using this laboratory, and a great number of research works and consultancy services are offered for many reputed industries, companies and academic institutions outside. Some of the research equipments include computerised variable compression ratio engines, emission analysers, electrolyser etc. The lab has a dedicated section for testing fuel properties such as, calorific value, flash and fire point and viscosity. Advanced testing equipment such as an Automatic Bomb Calorimeter and Automatic Flash and Fire Point Apparatus will also be available for research and consultancy purposes within a few months.

Facilities

UG/PG Laboratory-course Facilities

Details of Equipments / Kits (with Make/Model)

Selected pictures of the test set-ups

1. Four stroke Petrol engine (carburettor version)

Make : Maruti ;No. Of cylinder : three;Bore : 68.5 mm;Stroke length : 72 mm;Speed : 2500 rpm; Power :15 hp;Orifice dia:20 mm;Dynamometer :hydraulic;Dynamometer constand : 1000 kg/hp

2. Four stroke Petrol engine (MPFI Version)

Make : Maruti; No. Of cylinder : three;Bore : 68.5 mm;Stroke length : 72 mm;Speed : 2500 rpm;Power :15 hp;Orifice dia :20 mm;Dynamometer :hydraulic;Dynamometer constand : 1000 kg/hp

3. Elgi Air Compressor

Power : 5.5 KW;Type : Reciprocating;Speed :900 rpm;LP Cyl. Dia: 100 mm;LP Cyl. Strong length: 85 mm;HP Cyl. Dia : 60 mm;HP Cyl. Stroke length : 85 mm;Orifice dia: 22 mm;Energy meter constant :200 revs/ kwh

4. Kirloskar (AV1) VCR Multi fuel engine ( PC Based)No. Of cylinder : single;Bore : 87.5 mm;Stroke length : 110 mm;Normal compression ratio : 17.5:1;Diesel mode output 14:1 to 18:1 :5kw @1500 rpm;Petrol mode output 6:1 to 9:1 : 5kw @1500 rpm;Dynamometer : eddy current

5. Kirloskar single cylinder Diesel engine

Power : 5 HP;Speed :1500 rpm ;Type of stroke : 4;Stroke length :110 mm; Bore : 80 mm;Alternator capacity :3.5 KVA;>Efficiency of alternator : 75%;Orifice : 20 mm

6. Kirloskar four stroke single cylinder diesel engine

Power : 5 hp;Bore :80 mm ;Stroke : 110 mm; Speed :1500 rpm; Dynamometer : eddy current (water cooled)

7. PC based single cylinder CI engine (Duel fuel inducting capability)

Make : kirloskar AV 1; Bore :80 mm; Stroke : 110 mm; Power : 5 hp compression ratio : 17:1; Speed : 1500 rpm @c5 hp; Fuel : Diesel and Hydrogen; Dynamometer : Eddy current

8 Wind tunnel with vibgiyor make centrifugal blower

Speed : 2880 rpm; Power : 20 hp

9 Ambassador four stroke petrol engine

Power : 13 hp; No. of cylinders : 4; Bore : 73.025 mm; Stroke length : 88.39 mm ; Speed : 1500 rpm; Orifice dia : 33 mm; Firing order :1-3-4-2; Dynamo meter constand (K) : 2000

10 Javahar single cylinder four stroke Diesel engine

Power :10 hp; :1500 rpm; Stroke length : 110 mm; Bore : 102 mm ; Brake drum dia : 300 mm; Rope dia :20 mm; Orifice dia : 25 mm; Cd. : 0.6

11 Comet twin cylinder four stroke Diesel engine

Power : 10 hp; Speed : 1500 rpm; Bore : 102 mm; Stroke length : 110 mm; Dynamo meter constand (K) : 2000; Orifice dia : 20 mm; Cd. :0.6

12 Anil single cylinder Diesel engine

Power : 8 hp; Speed : 850 rpm; Bore :114.3 mm; Strong length :139.2 mm; Rope dia :20 mm;Brake dia : 320 mm

13 Kirloskar single cylinder Diesel engine

Power : 5 hp; Speed : 1500 rpm; Type of stroke : 4;Stroke length :110 mm;Bore :80 mm; Brake drum dia : 300 mm;Rope dia : 15 mm; Orifice dia :20 mm

14 Four stroke CI engine (water cooled)

No. of cylinder : 4; Bore :73 mm; Stroke length : 88.9 mm; Max. power : 37 hp @400 ; Max. torque : 8.6 kgm @2000 rpm; Displacement :1489 cc; Compression ratio : 23:1; Speed : variable;

Research Facilities

1. Computerised Variable Compression Ratio Engines

2. AVL 437 C Smoke meter with accessories

3. AVL DIGAS 444 5 Gas Analyzer with accessories

4.Automatic Bomb Calorimeter and accessories

Testing Facilities

Regular testing facilities and services are extended to interested parties on a charge basis.

List of UG Experiments

Course: Heat Engines Laboratory (ME4091D)

1 a) Constant speed performance test on Ambassador engine

b) Constant speed heat balance test on Ambassador engine

c) Study of ignition system in SI engines

2 a) Constant speed load test onMaruti 800 engine

b) Morse test on Maruti 800 Engine

c) Study of IC engine cooling system

3 a) Measurement of liquid viscosity using Redwood viscometer

b) Determination of flash and fire point

c) Determination of valve timing of Ruston engine

d) Study of fuel systems in petrol engines

4 a) Constant speed performance characteristics of Jawahar engine

b) Retardation test on Jawahar engine

c) Study of fuel systems in diesel engines

5 a) Effect of cooling water flow rate on performance of Kirloskar engine

b) Study of IC engine lubrication system

6 a) Performance test on Kay rotary compressor

b) Study of dynamometers

7 a) Performance test on centrifugal air blower

b) Study of starting systems in IC engines

8 a) Performance characteristics of ELGI reciprocating compressor

b) Study of fuels and fuel properties

9 a) Constant speed load test on Comet engine

b) Heat balance test on Comet engine

c) Study of IC engine intake and exhaust systems

10 a) Variable speed performance characteristics of Ambassador engine

b) Heat balance test at variable speed on Ambassador engine

c) Study of two stoke and four stroke engines

Extra experiments (for demo):

1. Constant speed emission test on Ambassador engine

2. Effect of EGR flow rate on performance and emissions of a single cylinder diesel engine

List of PG Experiments

Course: Thermal Engineering Laboratory (ME6292D)

1. To determine the effect of Exhaust Gas Recirculation (EGR) on the performance of single cylinder four stroke CI engine

2. To determine the efficiency and heat transfer coefficient between the heating element and the bed of fluidised combustion

3. To conduct a performance test on the air blower and to obtain its operating characteristics.

4. To conduct a performance test on rotary compressor and to obtain its operating characteristics.

5. Performance and emission characteristics of dual fuel CI engine.

6. Performance and emission characteristics of CI engine using biodiesel.

7. Performance analysis of a biomass gasifier.