Elements for the design of new generation of heat exchangers for transcritical CO2 heat pumps

Yin, J.M.; Bullard, C.W.; Hrnjak, P.S.

Permalink

https://hdl.handle.net/2142/13362 Copy

Description

Title

Elements for the design of new generation of heat exchangers for transcritical CO2 heat pumps

Author(s)

• Yin, J.M.
• Bullard, C.W.
• Hrnjak, P.S.

Issue Date

2001-05

Keyword(s)

• heat exchangers
• heat pumps
• transcritical CO2
• R-744

Abstract

This document summarizes the evolution of the design of a 10 kW split system residential heat pump, to operate with R744 on the transcritical cycle. It is the first such prototype to be designed, and will be used for experimental purposes. The final design was influenced several factors, and tradeoffs were quantified by using our system simulation model, which was developed and validated using extensive experimental data from both residential and mobile ac systems. Several constraints prevented optimization of this particular design, including tube and fin dimensions and overall heat exchanger package dimensions. The numbers of serpentine passes were optimized by considering the total pressure drop and manufacturing processes.

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 CR-37

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/13362

Owning Collections