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ACRC Technical Report 175PDF


Title:An Evaluation of Heat Exchangers Using System Information and PEC
Author(s):Pira, J.V.; Bullard, C.W.; Jacobi, A.M.
Subject(s):heat exchangers
performance evaluation criteria (PEC)
Abstract:This report describes analyses aimed at integrating component optimization and system design by developing heat-exchanger performance evaluation criteria (PEC) that account for the system-level performance impacts of heat exchanger design. It builds on earlier studies that used relatively simple PEC to capture some of the component-level tradeoffs, but which usually ignore the system impact of component design. This report evaluates four PEC-j/f, heat transfer/pumping power (8), heat transfer/(pumping + compressor power) (n), and system COP. It is shown that j/f and 8 are better used as comparison criteria for existing heat exchangers of equal heat duty rather than as design criteria. The other two PEC, n and COP, include the system effect of compressor efficiency and therefore can be used more effectively in heat exchanger and system design. Through a combination of PEC and system optimization techniques, a method is developed to evaluate and design heat exchangers for maximum system performance.
Issue Date:2000-08
Publisher:Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign.
Series/Report:Air Conditioning and Refrigeration Center TR-175
Genre:Technical Report
Sponsor:Air Conditioning and Refrigeration Project 95
Date Available in IDEALS:2009-05-29
Identifier in Online Catalog:4334014

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