Characteristics of evaporative heat transfer and pressure drop of carbon dioxide and correlation development

Seok Ho Yoon, Eun Seok Cho, Yun Wook Hwang, Min Soo Kim, Kyoungdoug Min, Yong Chan Kim

Research output: Contribution to journalArticle

111 Citations (Scopus)

Abstract

Carbon dioxide among natural refrigerants has gained considerable attention as an alternative refrigerant due to its excellent thermophysical properties. In this study, transcritical refrigeration cycle using carbon dioxide is of great interest, and the evaporation process is investigated by experiment and analysis. This paper presents the measured heat transfer coefficients and pressure drop during evaporation process of carbon dioxide in a horizontal smooth tube. The test section was made of a seamless stainless steel tube with the inner diameter of 7.53 mm, and length of 5 m. Heat is provided by a direct heating method to the test section. Experiments were conducted at saturation temperatures of -4 to 20 °C, heat fluxes of 12 to 20 kWm-2 and mass fluxes of 200 to 530 kgm-2 s -1. A comparison of different heat transfer correlations applicable to evaporation of carbon dioxide has been made. Based on the experiments for the evaporation heat transfer, useful correlation is developed.

Original languageEnglish
Pages (from-to)111-119
Number of pages9
JournalInternational Journal of Refrigeration
Volume27
Issue number2
DOIs
Publication statusPublished - 2004 Mar 1

Fingerprint

heat transfer
Carbon Dioxide
Pressure drop
evaporation
Carbon dioxide
Evaporation
Hot Temperature
carbon dioxide
Heat transfer
Pressure
Refrigerants
heat
heat transfer coefficient
Experiments
stainless steel
Refrigeration
refrigeration
Heat transfer coefficients
Stainless Steel
Heat flux

Keywords

  • Carbon dioxide
  • Drop
  • Evaporation
  • Heat transfer
  • Mass transfer
  • Pressure
  • Smooth tube

ASJC Scopus subject areas

  • Food Science
  • Mechanical Engineering

Cite this

Characteristics of evaporative heat transfer and pressure drop of carbon dioxide and correlation development. / Yoon, Seok Ho; Cho, Eun Seok; Hwang, Yun Wook; Kim, Min Soo; Min, Kyoungdoug; Kim, Yong Chan.

In: International Journal of Refrigeration, Vol. 27, No. 2, 01.03.2004, p. 111-119.

Research output: Contribution to journalArticle

Yoon, Seok Ho ; Cho, Eun Seok ; Hwang, Yun Wook ; Kim, Min Soo ; Min, Kyoungdoug ; Kim, Yong Chan. / Characteristics of evaporative heat transfer and pressure drop of carbon dioxide and correlation development. In: International Journal of Refrigeration. 2004 ; Vol. 27, No. 2. pp. 111-119.
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