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RESEARCH PAPERS

An Autonomous Artificial Designer of Thermal Energy Systems: Part 2—Solution Algorithm

[+] Author and Article Information
A. S. Kott, C. C. Hwang

Department of Mechanical Engineering, University of Pittsburgh, Pittsburgh, PA 15261

J. H. May

AIM Laboratory, Katz Graduate School of Business, University of Pittsburgh, Pittsburgh, PA 15261

J. Eng. Gas Turbines Power 111(4), 734-739 (Oct 01, 1989) (6 pages) doi:10.1115/1.3240320 History: Received January 19, 1988; Online October 15, 2009

Abstract

A knowledge-based approach to automated conceptual design (flowsheet synthesis) of thermal energy systems with strong interactions between heat/power/chemical transformations is presented. In Part 1, formulation of a thermal design problem is stated in terms of input/output specification, component interaction, feasibility constraints, and penalty function. The problem is then decomposed in inner problems that deal with a set of elementary processes, and outer problems that find a network of components approximating the optimum set of elementary processes. A design state is evaluated using a special form of fundamental equation for steady-state open thermodynamic systems based on a “temperature interval” concept. In Part 2 of this paper, an algorithm is presented. The algorithm makes use of the state evaluation function, transformation operators, and the plausible move operator to search through a space of the design states. A simple closed-cycle gas turbine is employed to illustrate the behavior of the “artificial designer” as it advances from a certain given design to more sophisticated schemes.

Copyright © 1989 by ASME
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