Efficiency analysis of automotive hydrogen internal combustion engine combined with a steam rankine cycle

A hydrogen internal combustion engine (HICE) emits both heat and water from the combustion process. In this study, a new concept of heat recovery sub-system, which exploits the water exhausted from an automobile HICE as a working fluid for a steam power generation system based on the Rankine cycl...

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Main Author:	Mohamad, Md Nor Anuar
Format:	Thesis
Language:	English
Published:	2010
Subjects:	TP Chemical technology TP315-360 Fuel
Online Access:	http://eprints.uthm.edu.my/3612/1/24p%20MD%20NOR%20ANUAR%20MOHAMAD.pdf
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spelling	my-uthm-ep.36122022-02-03T01:53:51Z Efficiency analysis of automotive hydrogen internal combustion engine combined with a steam rankine cycle 2010 Mohamad, Md Nor Anuar TP Chemical technology TP315-360 Fuel A hydrogen internal combustion engine (HICE) emits both heat and water from the combustion process. In this study, a new concept of heat recovery sub-system, which exploits the water exhausted from an automobile HICE as a working fluid for a steam power generation system based on the Rankine cycle has been introduced. In this cycle, the water separated from the HICE exhaust is evaporated and superheated by the exhaust waste heat of the HICE, and the water vapor is released to the atmosphere after it is used to produce power in a steam expander. The operating concept of the proposed recovery sub-system is described in this study, along with its potential power generated, and its beneficence to the overall thermal efficiency of the HICE. The recovery sub-system has been evaluated for various engine speeds using a fundamental thermodynamic model analysis. Two designs of the model have been examined; one with a condenser and another one without the condenser. The results showed that the design without a condenser is a cost-effective and simple approach, and its performance is comparable to another design. Both designs consumed almost equal amount of water as their working fluid. Consequently, it is concluded that the design without condenser is preferable for the recovery sub-system for HICE, which could enhance the overall thermal efficiency of the HICE from 27.2% to 33.6%, representing improvements of 2.9% to 3.7% from an HICE without any recovery sub-systems at engine speeds of 1500 to 4500 rpm 2010 Thesis http://eprints.uthm.edu.my/3612/ http://eprints.uthm.edu.my/3612/1/24p%20MD%20NOR%20ANUAR%20MOHAMAD.pdf text en public mphil masters Nagaoka University of Technology School of Engineering
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English
topic	TP Chemical technology TP315-360 Fuel
spellingShingle	TP Chemical technology TP315-360 Fuel Mohamad, Md Nor Anuar Efficiency analysis of automotive hydrogen internal combustion engine combined with a steam rankine cycle
description	A hydrogen internal combustion engine (HICE) emits both heat and water from the combustion process. In this study, a new concept of heat recovery sub-system, which exploits the water exhausted from an automobile HICE as a working fluid for a steam power generation system based on the Rankine cycle has been introduced. In this cycle, the water separated from the HICE exhaust is evaporated and superheated by the exhaust waste heat of the HICE, and the water vapor is released to the atmosphere after it is used to produce power in a steam expander. The operating concept of the proposed recovery sub-system is described in this study, along with its potential power generated, and its beneficence to the overall thermal efficiency of the HICE. The recovery sub-system has been evaluated for various engine speeds using a fundamental thermodynamic model analysis. Two designs of the model have been examined; one with a condenser and another one without the condenser. The results showed that the design without a condenser is a cost-effective and simple approach, and its performance is comparable to another design. Both designs consumed almost equal amount of water as their working fluid. Consequently, it is concluded that the design without condenser is preferable for the recovery sub-system for HICE, which could enhance the overall thermal efficiency of the HICE from 27.2% to 33.6%, representing improvements of 2.9% to 3.7% from an HICE without any recovery sub-systems at engine speeds of 1500 to 4500 rpm
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Mohamad, Md Nor Anuar
author_facet	Mohamad, Md Nor Anuar
author_sort	Mohamad, Md Nor Anuar
title	Efficiency analysis of automotive hydrogen internal combustion engine combined with a steam rankine cycle
title_short	Efficiency analysis of automotive hydrogen internal combustion engine combined with a steam rankine cycle
title_full	Efficiency analysis of automotive hydrogen internal combustion engine combined with a steam rankine cycle
title_fullStr	Efficiency analysis of automotive hydrogen internal combustion engine combined with a steam rankine cycle
title_full_unstemmed	Efficiency analysis of automotive hydrogen internal combustion engine combined with a steam rankine cycle
title_sort	efficiency analysis of automotive hydrogen internal combustion engine combined with a steam rankine cycle
granting_institution	Nagaoka University of Technology
granting_department	School of Engineering
publishDate	2010
url	http://eprints.uthm.edu.my/3612/1/24p%20MD%20NOR%20ANUAR%20MOHAMAD.pdf
_version_	1747831036294725632

Efficiency analysis of automotive hydrogen internal combustion engine combined with a steam rankine cycle

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