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The morse test experiment, Assignments of Thermodynamics

University of KwaZulu-NatalThermodynamics

it covers the morse test and the steps followed when conducting the experiment

Typology: Assignments

2020/2021

Uploaded on 06/08/2021

masana-khabelane
masana-khabelane 🇿🇦

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DEPARTMENT OF MECHANICAL AND INDUSTRIAL ENGINEERING
FACULTY OF ENGINEERING AND BUILT ENVIRONMENT
Morse Test Experiment
NAME : Khabelane MB
STUDENT NO : 201801633
COURSE : Thermodynamics 3A
MODULE : TRDMIA3
DATE : 21/06/08
I confirm that this assignment is my work, is not copied from any other person's work, and has not
previously submitted for assessment either at the University of Johannesburg or elsewhere.
Signed: Khabelane MB Date: 2021/05/28
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DEPARTMENT OF MECHANICAL AND INDUSTRIAL ENGINEERING

FACULTY OF ENGINEERING AND BUILT ENVIRONMENT

Morse Test Experiment

NAME : Khabelane MB STUDENT NO : 201801633 COURSE : Thermodynamics 3A MODULE : TRDMIA DATE : 21/06/ I confirm that this assignment is my work, is not copied from any other person's work, and has not previously submitted for assessment either at the University of Johannesburg or elsewhere. Signed: Khabelane MB Date: 2021/05/

Abstract Acknowledgements

In preparation of my laboratory report, I had to take the help and guidance of some respected

persons, who deserve my deepest gratitude. As the completion of this report gave me much

pleasure, I would like to show my gratitude Mr Tlali, Thermodynamics 3A lab instructor, of

the University of Johannesburg for giving me good guidelines for the report throughout

numerous consultations. I would also like to expand my gratitude to all those who have

directly and indirectly guided me in writing this report.

Objective of the experiment The objective of the experiment is to calculate the mechanical efficiency of a four-cylinder petrol engine. THEORY/BACKGROUND Morse test is conducted on multicylinder engines to determine the indicated power, frictional power, brake power and the mechanical efficiency of the engine. Brake power which is the power available at the shaft is always less than the indicated power of the engine. The two parameters are related as follows:

IP = BP + FP

Where: IP = Indicated power

BP = Break power

FP = Frictional power

The engine is run at a speed which is almost the same, this is to keep the engine speed at constant.

To calculate the IP of a certain cylinder, say nth cylinder, fuel supply is cut-off to that cylinder. The

indicated power of that nth cylinder is given by:

( IP ) nth = BP −( BP ) nth

Where: BP is the break power of engine when all cylinders are working.

APPARUTUS The apparatus used during the Morse test and their specifications Specifications: Engine capacity: 1598cc Compression ratio: 9,0: Cylinder bore: 80,97mm Stroke length: 72mm Torque: 115,5Nm @2600rev/min (DIN) : 127,2Nm @2600rev/min (SAE Gross) Output: 50kW @ 5200rev/min (DIN) :58,2kW @5700rev/min (SAE Gross) The engine is a four cylinder four stroke water cooled Ford Engine. PROCEDURE

  1. The battery was connected to the engine’s terminals.
  2. The engine was switched on from the key.
  3. The engine was warmed for five minutes.
  4. Froude device was plugged and switched on.