An Extension to the Irreversibility Minimization Analysis Applied to Heat Exchangers

[+] Author and Article Information
S. Aceves-Saborio, J. Ranasinghe, G. M. Reistad

Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331

J. Heat Transfer 111(1), 29-36 (Feb 01, 1989) (8 pages) doi:10.1115/1.3250654 History: Received October 26, 1987; Online October 20, 2009


The irreversibility minimization method of heat exchanger optimization is extended to include a term to account for the exergy of the material of construction of the heat exchanger. The method permits physically realistic optimization to be conducted with the resulting optimum designs providing conceptually beneficial guideposts, which do not change with time or location. Such optima are in contrast to the optima obtained by presently advocated methods, which on one hand indicate unrealistic infinite area heat exchangers, and on the other hand point to optima that may change dramatically with location and time. Although the analysis presented here does not represent a “cure-all” for heat exchanger analysis (economic optimization is still recommended), it does provide valuable conceptual insights and nonchanging guideposts for optimal design. Accompanying exergetic efficiency expressions using the same type of material exergy term show physically more realistic values than the usual expressions.

Copyright © 1989 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In