Modeling and Engine Performance of Direct Injection Hydrogen Fueled Engine

The present study explores the modeling of four cylinder direct injection hydrogen fueled engine and investigates the effect of engine speed on engine performance. GTPower was utilized to develop the model for direct injection engine. Air-fuel ratio was varied from rich limit (AFR=27.464) to a lean...

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Main Authors:	M. M., Rahman, M. M., Noor, R. A., Bakar, K., Kadirgama
Format:	Conference or Workshop Item
Language:	English
Published:	2009
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/1429/ http://umpir.ump.edu.my/id/eprint/1429/1/2009_P_MUCEET09_M.M.Rahman_M.M.Noor_H2_Fueled-Conference-.pdf

id	ump-1429
recordtype	eprints
spelling	ump-14292018-01-25T06:58:41Z http://umpir.ump.edu.my/id/eprint/1429/ Modeling and Engine Performance of Direct Injection Hydrogen Fueled Engine M. M., Rahman M. M., Noor R. A., Bakar K., Kadirgama TJ Mechanical engineering and machinery The present study explores the modeling of four cylinder direct injection hydrogen fueled engine and investigates the effect of engine speed on engine performance. GTPower was utilized to develop the model for direct injection engine. Air-fuel ratio was varied from rich limit (AFR=27.464) to a lean limit (AFR=171.65). The rotational speed of the engine was varied from 1000 to 6000 rpm. It can be seen from the obtained results that the engine speed are greatly influence on the brake mean effective pressure (BMEP), brake specific fuel consumption (BSFC). It can be seen that the decreases of BMEP with increases of engine speed, however, increases the brake specific fuel consumption. For rich mixtures (low AFR), BMEP decreases almost linearly, then decreases it with a non-linear manner. It can be observed that the brake thermal efficiency increases nearby the richest condition and then decreases with increases of engine speed. The optimum minimum value of BSFC occurred within a range of AFR from 38.144 (φ = 0.9) to 49.0428 (φ = 0.7) for the selected range of speed. It can be seen that higher volumetric efficiency emphasizes that direct injection of hydrogen is a strong candidate solution to solve the problem of the low volumetric efficiencies of hydrogen engine. Maximum brake torque speed for hydrogen engine occurs at lower speed compared with gasoline. The present contribution suggests the direct injection fuel supply system as a strong candidate for solving the power and abnormal combustion problems. 2009 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/1429/1/2009_P_MUCEET09_M.M.Rahman_M.M.Noor_H2_Fueled-Conference-.pdf M. M., Rahman and M. M., Noor and R. A., Bakar and K., Kadirgama (2009) Modeling and Engine Performance of Direct Injection Hydrogen Fueled Engine. In: Malaysian Technical Universities Conference on Engineering and Technology, 20-22 June 2009 , MS Garden Hotel, Kuantan, Pahang, Malaysia. .
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 R. A., Bakar K., Kadirgama Modeling and Engine Performance of Direct Injection Hydrogen Fueled Engine
description	The present study explores the modeling of four cylinder direct injection hydrogen fueled engine and investigates the effect of engine speed on engine performance. GTPower was utilized to develop the model for direct injection engine. Air-fuel ratio was varied from rich limit (AFR=27.464) to a lean limit (AFR=171.65). The rotational speed of the engine was varied from 1000 to 6000 rpm. It can be seen from the obtained results that the engine speed are greatly influence on the brake mean effective pressure (BMEP), brake specific fuel consumption (BSFC). It can be seen that the decreases of BMEP with increases of engine speed, however, increases the brake specific fuel consumption. For rich mixtures (low AFR), BMEP decreases almost linearly, then decreases it with a non-linear manner. It can be observed that the brake thermal efficiency increases nearby the richest condition and then decreases with increases of engine speed. The optimum minimum value of BSFC occurred within a range of AFR from 38.144 (φ = 0.9) to 49.0428 (φ = 0.7) for the selected range of speed. It can be seen that higher volumetric efficiency emphasizes that direct injection of hydrogen is a strong candidate solution to solve the problem of the low volumetric efficiencies of hydrogen engine. Maximum brake torque speed for hydrogen engine occurs at lower speed compared with gasoline. 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 R. A., Bakar K., Kadirgama
author_facet	M. M., Rahman M. M., Noor R. A., Bakar K., Kadirgama
author_sort	M. M., Rahman
title	Modeling and Engine Performance of Direct Injection Hydrogen Fueled Engine
title_short	Modeling and Engine Performance of Direct Injection Hydrogen Fueled Engine
title_full	Modeling and Engine Performance of Direct Injection Hydrogen Fueled Engine
title_fullStr	Modeling and Engine Performance of Direct Injection Hydrogen Fueled Engine
title_full_unstemmed	Modeling and Engine Performance of Direct Injection Hydrogen Fueled Engine
title_sort	modeling and engine performance of direct injection hydrogen fueled engine
publishDate	2009
url	http://umpir.ump.edu.my/id/eprint/1429/ http://umpir.ump.edu.my/id/eprint/1429/1/2009_P_MUCEET09_M.M.Rahman_M.M.Noor_H2_Fueled-Conference-.pdf
first_indexed	2023-09-18T21:54:34Z
last_indexed	2023-09-18T21:54:34Z
_version_	1777413992244838400

Modeling and Engine Performance of Direct Injection Hydrogen Fueled Engine

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