Condensation heat transfer characteristics of carbon dioxide in a horizontal smooth tube

2012 ◽  
Vol 36 ◽  
pp. 233-241 ◽  
Author(s):  
Chang-Hyo Son ◽  
Hoo-Kyu Oh
Keyword(s):  
Heat Transfer ◽  
Carbon Dioxide ◽  
Condensation Heat Transfer ◽  
Smooth Tube ◽  
Heat Transfer Characteristics ◽  
Transfer Characteristics

TWO-PHASE FLOW BOILING AND CONDENSATION HEAT TRANSFER CHARACTERISTICS OF NATURAL REFRIGERANTS: REVIEW

2013 ◽  
Vol 21 (04) ◽  
pp. 1330003 ◽  
Author(s):  
JAEHYEOK HEO ◽  
HOSEONG LEE ◽  
RIN YUN
Keyword(s):  
Heat Transfer ◽  
Carbon Dioxide ◽  
Flow Boiling ◽  
Environmentally Friendly ◽  
Condensation Heat Transfer ◽  
Environmental Concerns ◽  
Phase Flow ◽  
Heat Transfer Characteristics ◽  
Two Phase ◽  
Transfer Characteristics

The existing artificial and chemical refrigerants have been phased out due to environmental concerns, and they have been replaced with environmentally friendly refrigerants. Among them, carbon dioxide, ammonia, and hydrocarbons are paid attention as next generation refrigerants, and their application has been widely expanded. Therefore, in this paper, the latest studies of flow boiling and condensation heat transfer characteristics of carbon dioxide, ammonia, and hydrocarbon are reviewed. The heat transfer characteristics of ammonia and hydrocarbon show the relatively similar trends with the conventional refrigerants compared to those of carbon dioxide. The general trends and recommendable models of flow boiling and condensation heat transfer with carbon dioxide, ammonia, and hydrocarbons are summarized.

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