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Analysis And Simulation Of 4-Stroke Diesel Engine Performance.

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IV

ABSTRACT

The purpose of this study is to investigate the performance characteristics of

the ヲッオイセウエイッォ・@ diesel test engine that is available in the lab. The parameters

measured from the test engine are speed, torque, power output, fuel consumption and

exhaust gas temperature. The purpose of this study is also to develop a simulation

model involving air flow in enwe performance. The exhaust temperature measured

from the test engine will be used for simulation purpose. The simulation is carried

out on the exhaust port of the cylinder head. The temperature deduced from

simulation is compared with experimentally obtained results to from a correlation

between experiment and simulation. Based on the measured parameters the optimum

operating speed of the test engine is determined. The results obtained from this study

indicates that there two speeds that gives the highest output power which are at 1800

rpm and 2600 rpm respectively. At this speeds the torque recorded is the highest and

thus gives the highest power. The specific fuel consumption decreases with

increasing power. Maintenance guidelines recommendation are proposed based on

the experimental results.

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