Engine Performance Analysis Using GT-Power Software

Khairil Amri, Muhamad Tajuddin (2015) Engine Performance Analysis Using GT-Power Software. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 pages) Engine Performance Analysis Using GT-Power Software 24 Pages.pdf - Submitted Version Download (189kB)

Abstract

The conventional software of GT-Power is used to simulate a single cylinder gasoline engine. The gasoline engine is simulated to study the engine performance when the engine is operating with Compressed Natural Gas (CNG) as alternative fuel and its performance effect on the gasoline engine using GT-Power computational simulation. The Compressed Natural Gas (CNG) has long been used in industries and light-duty automotive engine because it is less expensive. Engine and vehicle manufacturers are increasingly involved in the development of original engine equipment, especially for gasoline replacement applications, although many still regard the demand as to limited and dispersed to warrant large-scale manufacture. The CNG four stroke gasoline engine model was developed using GT-Power computational model with measurement for all of its components. The simulation results were compared with the data from the experimental result from the gasoline engine Robin EY20D engine operating with gasoline fuel and CNG fuel. The actual engine dimensions such as bore, stroke, intake pipe diameter and exhaust diameter were measured. Some of the data such as compression ratio, connecting rod length and fuel injector properties was based on the engine data sheet. The engine dimension and parameter are inserted into the software pop up table. The simulations were conducted at full load condition for the engine operating with gasoline and CNG fuel. The computational model was run using mono CNG fuel and mono gasoline fuel to know the engine performance with difference fuel. The simulation results were compared with the data for the gasoline fuel and also the CNG fuel. The experiment has been using water brake hydraulic pump act as a dynamometer. The simulation and experiment was performed to investigate engine performance parameters such as cylinder pressure, torque, power, volumetric efficiency and Brake Specific Fuel Consumption (BSFC). Results show gasoline is more power, torque and Brake Specific Fuel Consumption (BSFC) than CNG but volumetric efficiency for the CNG is not as much as gasoline.

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