Modeling and simulation of a transcritical CO 2 heat pump system with an internal heat exchanger

Rony Sian, Chi-Chuan Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

In this study, a transcritical carbon dioxide heat pump model consisting of five components (compressor, plate heat exchanger gas cooler, expansion device, finned-coil evaporator and tube-in-tube internal heat exchanger) is proposed. The detailed geometrical variation in each of the components and parametric influences of the fluids upon the system are taken into account. Computer code has been developed to evaluate both thermodynamic and transport properties for CO 2 , water and air in each of the components correspondingly, as well as a solution algorithm for the system without imposing excessive constrains. Moreover, the proposed study aims not only to improve the existing models, but also to provide a better understanding in realizing the systemic performance of CO 2 as a working fluid. Furthermore, the results from this study may assist in the analysis and design of transcritical CO 2 systems.

Original languageEnglish
Title of host publication24th IIR International Congress of Refrigeration, ICR 2015
PublisherInternational Institute of Refrigeration
Pages3485-3493
Number of pages9
ISBN (Electronic)9782362150128
DOIs
StatePublished - 1 Jan 2015
Event24th IIR International Congress of Refrigeration, ICR 2015 - Yokohama, Japan
Duration: 16 Aug 201522 Aug 2015

Publication series

NameRefrigeration Science and Technology
ISSN (Print)0151-1637

Conference

Conference24th IIR International Congress of Refrigeration, ICR 2015
CountryJapan
CityYokohama
Period16/08/1522/08/15

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