Dual Temperature Evaporator Refrigerator Design and Optimization

Kelman, S.; Bullard, C.W.

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https://hdl.handle.net/2142/11891 Copy

Description

Title

Dual Temperature Evaporator Refrigerator Design and Optimization

Author(s)

• Kelman, S.
• Bullard, C.W.

Issue Date

1999-01

Keyword(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

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-148

Type of Resource

text

Language

en

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http://hdl.handle.net/2142/11891

Sponsor(s)/Grant Number(s)

Air Conditioning and Refrigeration Project 66

Owning Collections