An Evaluation of Heat Exchangers Using System Information and PEC

Pira, J.V.; Bullard, C.W.; Jacobi, A.M.

Permalink

https://hdl.handle.net/2142/11956 Copy

Description

Title

An Evaluation of Heat Exchangers Using System Information and PEC

Author(s)

• Pira, J.V.
• Bullard, C.W.
• Jacobi, A.M.

Issue Date

2000-08

Keyword(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.

Publisher

Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign.

Series/Report Name or Number

Air Conditioning and Refrigeration Center TR-175

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/11956

Sponsor(s)/Grant Number(s)

Air Conditioning and Refrigeration Project 95

Owning Collections