Cycle engine modelling of spark ignition engine processes during wide-open throttle (WOT) engine operation running by gasoline fuel

One-dimensional engine model is developed to simulate spark ignition engine processes in a 4-stroke, 4 cylinders gasoline engine. Physically, the baseline engine is inline cylinder engine with 3-valves per cylinder. Currently, the engine's mixture is formed by external mixture formation using p...

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Main Authors:	Mohd Fadzil, Abdul Rahim, M. M., Rahman, R. A., Bakar
Format:	Conference or Workshop Item
Language:	English
Published:	IOP Publishing 2012
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/25129/ http://umpir.ump.edu.my/id/eprint/25129/ http://umpir.ump.edu.my/id/eprint/25129/1/Cycle%20engine%20modelling%20of%20spark%20ignition%20engine%20processes%20during%20wide-open%20throttle%20%28WOT%29.pdf

id	ump-25129
recordtype	eprints
spelling	ump-251292019-11-08T03:36:39Z http://umpir.ump.edu.my/id/eprint/25129/ Cycle engine modelling of spark ignition engine processes during wide-open throttle (WOT) engine operation running by gasoline fuel Mohd Fadzil, Abdul Rahim M. M., Rahman R. A., Bakar TJ Mechanical engineering and machinery One-dimensional engine model is developed to simulate spark ignition engine processes in a 4-stroke, 4 cylinders gasoline engine. Physically, the baseline engine is inline cylinder engine with 3-valves per cylinder. Currently, the engine's mixture is formed by external mixture formation using piston-type carburettor. The model of the engine is based on one-dimensional equation of the gas exchange process, isentropic compression and expansion, progressive engine combustion process, and accounting for the heat transfer and frictional losses as well as the effect of valves overlapping. The model is tested for 2000, 3000 and 4000 rpm of engine speed and validated using experimental engine data. Results showed that the engine is able to simulate engine's combustion process and produce reasonable prediction. However, by comparing with experimental data, major discrepancy is noticeable especially on the 2000 and 4000 rpm prediction. At low and high engine speed, simulated cylinder pressures tend to under predict the measured data. Whereas the cylinder temperatures always tend to over predict the measured data at all engine speed. The most accurate prediction is obtained at medium engine speed of 3000 rpm. Appropriate wall heat transfer setup is vital for more precise calculation of cylinder pressure and temperature. More heat loss to the wall can lower cylinder temperature. On the hand, more heat converted to the useful work mean an increase in cylinder pressure. Thus, instead of wall heat transfer setup, the Wiebe combustion parameters are needed to be carefully evaluated for better results. IOP Publishing 2012 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/25129/1/Cycle%20engine%20modelling%20of%20spark%20ignition%20engine%20processes%20during%20wide-open%20throttle%20%28WOT%29.pdf Mohd Fadzil, Abdul Rahim and M. M., Rahman and R. A., Bakar (2012) Cycle engine modelling of spark ignition engine processes during wide-open throttle (WOT) engine operation running by gasoline fuel. In: 1st International Conference on Mechanical Engineering Research 2011, ICMER 2011, 5-7 Disember 2011 , Kuantan, Pahang Darul Makmur. pp. 1-9., 36 (012041). ISSN 1757-899X https://doi.org/10.1088/1757-899X/36/1/012041
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Mohd Fadzil, Abdul Rahim M. M., Rahman R. A., Bakar Cycle engine modelling of spark ignition engine processes during wide-open throttle (WOT) engine operation running by gasoline fuel
description	One-dimensional engine model is developed to simulate spark ignition engine processes in a 4-stroke, 4 cylinders gasoline engine. Physically, the baseline engine is inline cylinder engine with 3-valves per cylinder. Currently, the engine's mixture is formed by external mixture formation using piston-type carburettor. The model of the engine is based on one-dimensional equation of the gas exchange process, isentropic compression and expansion, progressive engine combustion process, and accounting for the heat transfer and frictional losses as well as the effect of valves overlapping. The model is tested for 2000, 3000 and 4000 rpm of engine speed and validated using experimental engine data. Results showed that the engine is able to simulate engine's combustion process and produce reasonable prediction. However, by comparing with experimental data, major discrepancy is noticeable especially on the 2000 and 4000 rpm prediction. At low and high engine speed, simulated cylinder pressures tend to under predict the measured data. Whereas the cylinder temperatures always tend to over predict the measured data at all engine speed. The most accurate prediction is obtained at medium engine speed of 3000 rpm. Appropriate wall heat transfer setup is vital for more precise calculation of cylinder pressure and temperature. More heat loss to the wall can lower cylinder temperature. On the hand, more heat converted to the useful work mean an increase in cylinder pressure. Thus, instead of wall heat transfer setup, the Wiebe combustion parameters are needed to be carefully evaluated for better results.
format	Conference or Workshop Item
author	Mohd Fadzil, Abdul Rahim M. M., Rahman R. A., Bakar
author_facet	Mohd Fadzil, Abdul Rahim M. M., Rahman R. A., Bakar
author_sort	Mohd Fadzil, Abdul Rahim
title	Cycle engine modelling of spark ignition engine processes during wide-open throttle (WOT) engine operation running by gasoline fuel
title_short	Cycle engine modelling of spark ignition engine processes during wide-open throttle (WOT) engine operation running by gasoline fuel
title_full	Cycle engine modelling of spark ignition engine processes during wide-open throttle (WOT) engine operation running by gasoline fuel
title_fullStr	Cycle engine modelling of spark ignition engine processes during wide-open throttle (WOT) engine operation running by gasoline fuel
title_full_unstemmed	Cycle engine modelling of spark ignition engine processes during wide-open throttle (WOT) engine operation running by gasoline fuel
title_sort	cycle engine modelling of spark ignition engine processes during wide-open throttle (wot) engine operation running by gasoline fuel
publisher	IOP Publishing
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/25129/ http://umpir.ump.edu.my/id/eprint/25129/ http://umpir.ump.edu.my/id/eprint/25129/1/Cycle%20engine%20modelling%20of%20spark%20ignition%20engine%20processes%20during%20wide-open%20throttle%20%28WOT%29.pdf
first_indexed	2023-09-18T22:38:25Z
last_indexed	2023-09-18T22:38:25Z
_version_	1777416751982575616

Cycle engine modelling of spark ignition engine processes during wide-open throttle (WOT) engine operation running by gasoline fuel

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