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Ultra-low temperature refrigeration system of CO2 using cyclone separator/evaporator

Abstract

In order to achieve ultra-low temperature system below -70℃, the CO2 refrigeration system with a cyclone separation evaporator, that separates dry ice, utilizes the sublimation heat of the dry ice generated during the expansion process. The system proves a useful refrigeration system with cold energy storage function compared to that of the conventionally used horizontal evaporator (CHE) system. In this study, the effect of the ethanol circulation system, which is installed as a secondary chiller on the cascade heat pump cycle, is investigated experimentally, and the basic performance of the ethanol circulation system is reported in details.

Category

Academic chapter

Language

English

Author(s)

  • H. Yamaguchi
  • Yuki Ishikawa
  • Hiroshi Yamasaki
  • Takeshi Kamimura
  • K Hattori
  • Petter Nekså

Affiliation

  • SINTEF Energy Research / Gassteknologi
  • Japan
  • Doshisha University
  • Osaka Prefecture University

Year

2022

Publisher

International Institute of Refrigeration

Book

15th IIR-Gustav Lorentzen Conference on Natural Refrigerants - GL2022 - Proceedings - Trondheim, Norway, June 13-15th 2022

ISBN

9782362150456

Page(s)

1758 - 1763

View this publication at Norwegian Research Information Repository