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ICHMT DIGITAL LIBRARY ONLINE

ISSN 961-91393-0-5

Individual price:

$246.00 (Must be sent to your home address)

You can order single issue or individual article. To purchase a single issue or an individual article as well as to view tables of contents and abstracts click on issue number.

Institutional price:

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For Online Access

Year 2000

Volume 2 - Thermal Sciences 2000
Proceedings of the International Thermal Science Seminar Bled, Slovenia, June 11 – 14, 2000

200 pages

Volume price - $130.00

Abstract of "ENTROPY GENERATION MINIMIZATION: THE METHOD AND ITS APPLICATIONS"

Adrian Bejan
Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708-0300, USA

ABSTRACT

This lecture outlines the basis for the entropy generation minimization method, and a series of key applications in power generation, refrigeration, and energy conservation. The lecture begins with a review of the concept of irreversibility, entropy generation, or exergy destruction. The proportionality between exergy destruction and entropy generation is used in the search for improved thermodynamic performance subject to finite-size constraints and specified environmental conditions. Examples are drawn from refrigeration, energy storage systems for sensible heat and latent heat, solar energy, and the generation of maximum power by using a stream of hot gas. It is shown that the physical structure of the system springs out of the process of global thermodynamic optimization subject to global constraints. This principle generates structure not only in engineering but also in physics and biology (constructal theory).