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An investigation of a household size trigeneration running with hydrogen

Lookup NU author(s): Dr Yaodong Wang, Dr Elijah Chiremba, Professor Tony Roskilly, Dr Dawei Wu

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Abstract

This study examined the performance and emission characteristics of a household size trigeneration based on a diesel engine generator fuelled with hydrogen comparing to that of single generation, cogeneration using ECLIPSE simulation software. In single generation simulation, the engine genset is used to produce electricity only and the heat from the engine is rejected to the atmosphere. In cogeneration and trigeneration, in addition to the electricity generated from the genset, the waste heat rejected from the hot exhaust gases and engine cooling system, is captured for domestic hot water supply using heat exchangers and hot water tank; and a part of the waste heat is used to drive absorption cooling in trigeneration. Comparisons have been made for the simulated results of these three modes of operation for hydrogen and diesel. The results prove that hydrogen is a potential energy vector in the future which is a key to meeting upcoming stringent greenhouse gases emissions. The study show that hydrogen has very good prospects to achieve a better or equal performance to conventional diesel fuel in terms of energetic performance, and a near zero carbon emission, depending on the life cycle analysis of the way the hydrogen is produced. The results also show enormous potential fuel savings and massive reductions in greenhouse gas emissions per unit of useful energy outputs with cogeneration and trigeneration compared with that of single generation. (c) 2011 Elsevier Ltd. All rights reserved.


Publication metadata

Author(s): Wang YD, Huang Y, Chiremba E, Roskilly AP, Hewitt N, Ding YL, Wu DW, Yu HD, Chen XP, Li YP, Huang JC, Wang RZ, Wu JY, Xia ZZ, Tan CQ

Publication type: Article

Publication status: Published

Journal: Applied Energy

Year: 2011

Volume: 88

Issue: 6

Pages: 2176-2182

Print publication date: 20/01/2011

ISSN (print): 0306-2619

ISSN (electronic): 1872-9118

Publisher: Pergamon

URL: http://dx.doi.org/10.1016/j.apenergy.2011.01.004

DOI: 10.1016/j.apenergy.2011.01.004


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