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Energies 2017, 10(2), 165; doi:10.3390/en10020165

Exergy Analysis of Solid Fuel-Fired Heat and Power Plants: A Review

1
Swedish Centre for Resource Recovery, University of Borås, 501 90 Borås, Sweden
2
Department of Mechanical Engineering, Michael Okpara University of Agriculture, Umudike P.M.B 7267, Abia State, Nigeria
*
Author to whom correspondence should be addressed.
Received: 16 November 2016 / Accepted: 19 January 2017 / Published: 1 February 2017
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Abstract

The growing demand for energy is particularly important to engineers with respect to how the energy produced by heat and power plants can be used efficiently. Formerly, performance evaluation of thermal power plants was done through energy analysis. However, the energy method does not account for irreversibilities within the system. An effective method to measure and improve efficiency of thermal power plant is exergy analysis. Exergy analysis is used to evaluate the performance of a system and its main advantage is enhancement of the energy conversion process. It helps identify the main points of exergy destruction, the quantity and causes of this destruction, as well as show which areas in the system and components have potential for improvements. The current study is a comprehensive review of exergy analyses applied in the solid fuels heat and power sector, which includes coal, biomass and a combination of these feedstocks as fuels. The methods for the evaluation of the exergy efficiency and the exergy destruction are surveyed in each part of the plant. The current review is expected to advance understanding of exergy analysis and its usefulness in the energy and power sectors: it will assist in the performance assessment, analysis, optimization and cost effectiveness of the design of heat and power plant systems in these sectors. View Full-Text
Keywords: exergy; heat and power; solid fuels; system efficiencies exergy; heat and power; solid fuels; system efficiencies
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Eboh, F.C.; Ahlström, P.; Richards, T. Exergy Analysis of Solid Fuel-Fired Heat and Power Plants: A Review. Energies 2017, 10, 165.

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