Study Of Air Fuel Ratio On Engine Performance Of Direct Injection Hydrogen Fueled Engine

The present study focuses on the effect of air-fuel ratio on the performance of four cylinder hydrogen fueled direct injection internal combustion engine. GT-Power was utilized to develop the model for direct injection engine. Air-fuel ratio was varied from rich to a lean limit. The rotational spe...

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Main Authors:	M. M., Rahman, M. M., Noor, M. R. M., Rejab, M. S. M., Sani, K., Kadirgama
Format:	Conference or Workshop Item
Language:	English
Published:	2008
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/1842/ http://umpir.ump.edu.my/id/eprint/1842/1/Study_Of_Air_Fuel_Ratio_On_Engine_Performance_Of_Direct_Injection_Hydrogen.pdf

id	ump-1842
recordtype	eprints
spelling	ump-18422018-01-23T04:27:36Z http://umpir.ump.edu.my/id/eprint/1842/ Study Of Air Fuel Ratio On Engine Performance Of Direct Injection Hydrogen Fueled Engine M. M., Rahman M. M., Noor M. R. M., Rejab M. S. M., Sani K., Kadirgama TJ Mechanical engineering and machinery The present study focuses on the effect of air-fuel ratio on the performance of four cylinder hydrogen fueled direct injection internal combustion engine. GT-Power was utilized to develop the model for direct injection engine. Air-fuel ratio was varied from rich to a lean limit. The rotational speed of the engine was varied from 1250 to 4500 rpm. The acquired results shown that the air fuel ratio are greatly influence on the brake mean effective pressure (BMEP), brake efficiency (BE), brake specific fuel consumption (BSFC) as well as the maximum cylinder temperature. It can be seen that the decreases of BMEP, BE and maximum cylinder temperature with increases of air fuel ratio and speed, however, increases the brake specific fuel consumption. For rich mixtures (low AFR), BMEP decreases almost linearly, then BMEP falls with a non-linear behavior. It can be observed that the brake thermal efficiency is increases nearby the richest condition (AFR ≅ 35) and then decreases with increases of air fuel ratio. Maximum b η of 35.4% at speed 2500 rpm can be seen compared with 26.3% at speed 4500 rpm. The optimum minimum value of BSFC occurred within a range of AFR from 38.144 ( 9 . 0 = θ ) to 49.0428 ( 7 . 0 = θ ) for the selected range of speed. The present contribution suggests the direct injection fuel supply system as a strong candidate for solving the power and abnormal combustion problems. 2008 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/1842/1/Study_Of_Air_Fuel_Ratio_On_Engine_Performance_Of_Direct_Injection_Hydrogen.pdf M. M., Rahman and M. M., Noor and M. R. M., Rejab and M. S. M., Sani and K., Kadirgama (2008) Study Of Air Fuel Ratio On Engine Performance Of Direct Injection Hydrogen Fueled Engine. In: Malaysian Science and Technology Congress, MSTC08, 16-17 Dec 2008 , KLCC, Kuala Lumpur. .
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 M. M., Rahman M. M., Noor M. R. M., Rejab M. S. M., Sani K., Kadirgama Study Of Air Fuel Ratio On Engine Performance Of Direct Injection Hydrogen Fueled Engine
description	The present study focuses on the effect of air-fuel ratio on the performance of four cylinder hydrogen fueled direct injection internal combustion engine. GT-Power was utilized to develop the model for direct injection engine. Air-fuel ratio was varied from rich to a lean limit. The rotational speed of the engine was varied from 1250 to 4500 rpm. The acquired results shown that the air fuel ratio are greatly influence on the brake mean effective pressure (BMEP), brake efficiency (BE), brake specific fuel consumption (BSFC) as well as the maximum cylinder temperature. It can be seen that the decreases of BMEP, BE and maximum cylinder temperature with increases of air fuel ratio and speed, however, increases the brake specific fuel consumption. For rich mixtures (low AFR), BMEP decreases almost linearly, then BMEP falls with a non-linear behavior. It can be observed that the brake thermal efficiency is increases nearby the richest condition (AFR ≅ 35) and then decreases with increases of air fuel ratio. Maximum b η of 35.4% at speed 2500 rpm can be seen compared with 26.3% at speed 4500 rpm. The optimum minimum value of BSFC occurred within a range of AFR from 38.144 ( 9 . 0 = θ ) to 49.0428 ( 7 . 0 = θ ) for the selected range of speed. The present contribution suggests the direct injection fuel supply system as a strong candidate for solving the power and abnormal combustion problems.
format	Conference or Workshop Item
author	M. M., Rahman M. M., Noor M. R. M., Rejab M. S. M., Sani K., Kadirgama
author_facet	M. M., Rahman M. M., Noor M. R. M., Rejab M. S. M., Sani K., Kadirgama
author_sort	M. M., Rahman
title	Study Of Air Fuel Ratio On Engine Performance Of Direct Injection Hydrogen Fueled Engine
title_short	Study Of Air Fuel Ratio On Engine Performance Of Direct Injection Hydrogen Fueled Engine
title_full	Study Of Air Fuel Ratio On Engine Performance Of Direct Injection Hydrogen Fueled Engine
title_fullStr	Study Of Air Fuel Ratio On Engine Performance Of Direct Injection Hydrogen Fueled Engine
title_full_unstemmed	Study Of Air Fuel Ratio On Engine Performance Of Direct Injection Hydrogen Fueled Engine
title_sort	study of air fuel ratio on engine performance of direct injection hydrogen fueled engine
publishDate	2008
url	http://umpir.ump.edu.my/id/eprint/1842/ http://umpir.ump.edu.my/id/eprint/1842/1/Study_Of_Air_Fuel_Ratio_On_Engine_Performance_Of_Direct_Injection_Hydrogen.pdf
first_indexed	2023-09-18T21:55:08Z
last_indexed	2023-09-18T21:55:08Z
_version_	1777414028195266560

Study Of Air Fuel Ratio On Engine Performance Of Direct Injection Hydrogen Fueled Engine

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