Exergy-based analysis of diesel engine when fuelled with fossil diesel and Palm Methyl Ester (PME)
Exergy-based analysis of diesel engine when fuelled with fossil diesel and Palm Methyl Ester (PME)
Biomass-based energy sources as an alternative to conventional fossil fuel have gained public attention due to the increasing rate of environmental pollutions and depletion of fossil energy source. For diesel engines, comparisons on fuel sustainability and First Law of Thermodynamics are common to inspect biodiesel's potential in replacing conventional diesel fuel. However, the present work focuses on the energetic and exergetic comparisons of a light-duty diesel engine fuelled with fossil diesel and neat Palm Methyl Ester (PME). This study also covers emission characteristics and exergy destruction rate under varying engine operating parameters and fuel types. It was revealed that the best engine thermal efficiency when fuelled with fossil diesel and PME are 22.1% (2750 rpm, 1950W) and 24.3% (3000 rpm, 2400W), respectively. Additionally, the exergy efficiencies of the diesel engine at the same operating conditions appear to be approximately 2% lower than their First Law counterparts. This can be attributed to the generation of the entropy in reactions which destroyed the fuels' potential. The availability destroyed rates were observed to have significant impacts on the exergy efficiencies of the diesel engine. Thus, heat transfer and exhaust exergy rates were investigated since they are the main factors for this outcome. In general, the use of PME fuel will be more beneficial in terms of exergy destruction, engine's thermal and exergy efficiencies due to its higher oxygen content which improves the fuel combustion process.
1-6
Ng, Jo Han
4c9c51bd-1cfc-46c0-b519-23b77566fe50
Chow, Kai Jie
59da6314-b5d7-4e5f-bf1f-c833fc78bfff
Yao Wong, Kang
7bbce6ab-89b5-4b6c-ab92-d853735a505b
Tung Chong, Cheng
a3b41f14-a280-47e8-a7db-2d8641fbcabc
2 July 2019
Ng, Jo Han
4c9c51bd-1cfc-46c0-b519-23b77566fe50
Chow, Kai Jie
59da6314-b5d7-4e5f-bf1f-c833fc78bfff
Yao Wong, Kang
7bbce6ab-89b5-4b6c-ab92-d853735a505b
Tung Chong, Cheng
a3b41f14-a280-47e8-a7db-2d8641fbcabc
Ng, Jo Han, Chow, Kai Jie, Yao Wong, Kang and Tung Chong, Cheng
(2019)
Exergy-based analysis of diesel engine when fuelled with fossil diesel and Palm Methyl Ester (PME).
In International Conference on Sustainable Energy and Green Technology 2018 11–14 December 2018, Kuala Lumpur, Malaysia.
vol. 268,
IOP Publishing.
.
(doi:10.1088/1755-1315/268/1/012127).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Biomass-based energy sources as an alternative to conventional fossil fuel have gained public attention due to the increasing rate of environmental pollutions and depletion of fossil energy source. For diesel engines, comparisons on fuel sustainability and First Law of Thermodynamics are common to inspect biodiesel's potential in replacing conventional diesel fuel. However, the present work focuses on the energetic and exergetic comparisons of a light-duty diesel engine fuelled with fossil diesel and neat Palm Methyl Ester (PME). This study also covers emission characteristics and exergy destruction rate under varying engine operating parameters and fuel types. It was revealed that the best engine thermal efficiency when fuelled with fossil diesel and PME are 22.1% (2750 rpm, 1950W) and 24.3% (3000 rpm, 2400W), respectively. Additionally, the exergy efficiencies of the diesel engine at the same operating conditions appear to be approximately 2% lower than their First Law counterparts. This can be attributed to the generation of the entropy in reactions which destroyed the fuels' potential. The availability destroyed rates were observed to have significant impacts on the exergy efficiencies of the diesel engine. Thus, heat transfer and exhaust exergy rates were investigated since they are the main factors for this outcome. In general, the use of PME fuel will be more beneficial in terms of exergy destruction, engine's thermal and exergy efficiencies due to its higher oxygen content which improves the fuel combustion process.
Text
Ng 2019 IOP Conf. Ser. Earth Environ. Sci. 268 012127
- Version of Record
More information
Accepted/In Press date: 28 March 2019
Published date: 2 July 2019
Venue - Dates:
International Conference on Sustainable Energy and Green Technology 2018, SEGT 2018, , Kuala Lumpur, Malaysia, 2018-12-11 - 2018-12-14
Identifiers
Local EPrints ID: 432666
URI: http://eprints.soton.ac.uk/id/eprint/432666
ISSN: 1755-1307
PURE UUID: 4eb5c35d-5572-4d1a-b700-476ddd9ffd11
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Date deposited: 24 Jul 2019 16:30
Last modified: 05 Jun 2024 18:53
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Author:
Kai Jie Chow
Author:
Kang Yao Wong
Author:
Cheng Tung Chong
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