A Computer Code Using Exergy for Optimizing Thermal Plants

[+] Author and Article Information
G. Bidini, S. S. Stecco

Dipartimento di Energetica, Universita di Firenze, 50139 Firenze, Italy

J. Eng. Gas Turbines Power 113(1), 145-150 (Jan 01, 1991) (6 pages) doi:10.1115/1.2906523 History: Received October 25, 1989; Revised May 15, 1990; Online April 24, 2008


This paper presents an exergetic approach to reducing energy consumption in industrial plants. The minimum pinchpoint temperature difference is determined for several cases of heat exchange between hot and cold fluid streams with reduced thermal losses. The proposed method, designated TEXAS (Thermal and economic EXergetic Analysis of Systems), derives families of characteristic curves showing economic parameters versus exergetic efficiency in relation to factors such as heat transfer, surface, and scaling. As the method is highly affected by the economic parameter assumptions, the sensitivity of the variations in the parameters is also analyzed.

Copyright © 1991 by The American Society of Mechanical Engineers
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