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ACRC Technical Report 148PDF


Title:Dual Temperature Evaporator Refrigerator Design and Optimization
Author(s):Kelman, S.; Bullard, C.W.
Subject(s):refrigerator systems analysis
Abstract:The primary focus of this thesis is on performance advantages of a dual-temperature evaporator refrigerator system over a conventional design. Through extensive use of computer-aided modeling, it is demonstrated that energy savings of at least 8-10% can be achieved if this design is coupled with variable speed compressor technology. In addition to the validation study, various optimization techniques that can be used to reduce energy consumption of sequential cooling systems are also introduced. These methods are subsequently applied to a particular experimental prototype design. The thesis also explores ways of reducing overall charge requirements for a refrigerator system by means of introducing parallel circuits in the heat exchangers. Other topics include evaporator de-superheating phenomenon, a series of studies on flow instabilities in capillary tubes, and a dual-speed compressor performance analysis. i
Issue Date:1999-01
Publisher:Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign.
Series/Report:Air Conditioning and Refrigeration Center TR-148
Genre:Technical Report
Sponsor:Air Conditioning and Refrigeration Project 66
Date Available in IDEALS:2009-05-22
Identifier in Online Catalog:4223327

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