Energy Optimization Through Exergy-Economic Evaluation

[+] Author and Article Information
B. Hua, Q. Yin

Chemical Engineering Research Institute, South China University of Technology, Guangzhou, People’s Republic of China

G. Wu

The Department of Chemical Engineering, South China University of Technology, Guangzhou, People’s Republic of China

J. Energy Resour. Technol 111(3), 148-153 (Sep 01, 1989) (6 pages) doi:10.1115/1.3231416 History: Received August 01, 1988; Revised May 01, 1989; Online October 22, 2009


This paper deals with total system optimization for energy use in complex process systems based on the premise that the sub-systems or local schemes have been optimally designed. The problem, however, has not been solved so far. Based on the three-links-model established for the energy structure of process systems, this paper advances an evolving optimization strategy, in which the results of quantitative exergy-economic evaluation of the sub-systems are taken as the criteria to guide trade-off among them and lead the total scheme gradually towards optimum. The general concepts, evaluation equations, applying procedure, and examples are presented. Notable economical and energy-saving benefits can be (have been) obtained when used on actual industrial plants.

Copyright © 1989 by ASME
Topics: Exergy , Optimization
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