Exergoeconomic analysis and optimization of a cogeneration system using evolutionary programming

Journal article

Authors/Editors

Sahoo, Pradeep

Research Areas

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Publication Details

Author list: Sahoo PK

Publisher: Elsevier

Place: OXFORD

Publication year: 2008

Journal: Applied Thermal Engineering (1359-4311)

Journal acronym: APPL THERM ENG

Volume number: 28

Issue number: 13

Start page: 1580

End page: 1588

Number of pages: 9

ISSN: 1359-4311

Languages: English-Great Britain (EN-GB)

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Abstract

Exergoeconomic analysis helps designers to find ways to improve the performance of a system in a cost effective way. Most of the conventional exergoeconomic optimisation methods are iterative in nature and require the interpretation of the designer at each iteration. In this work, a cogeneration system that produces 50 MW of electricity and 15 kg/s of saturated steam at 2.5 bar is optimized using exergoeconomic principles and evolutionary programming. The analysis shows that the product cost, cost of electricity and steam, is 9.9% lower with respect to the base case. This is achieved, however, with 10% increase in capital investment. Moreover, it is important to note that the additional investment can be paid back in 3.23 years. (C) 2007 Elsevier Ltd. All rights reserved.

Keywords

cogeneration, evolutionary programming, exergoeconomics, exergy, Optimization

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