Heat Transfer Characteristics of Thermosiphon Type Heat Pipe using Surfactant Aqueous Solution as Working Fluid

Cooling characteristic of the thermosiphon type heat pipe by adding the surfactant to pure water is examined. Sodium myristate which has good hydrophilicity and foamability is used as a surfactant. The experimental results show reduction of total thermal resistance for surfactant solution is about 1...

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Bibliographic Details
Published inThermal Science and Engineering Vol. 21; no. 4; pp. 95 - 103
Main Authors MATSUSHIMA, Hitoshi, USUI, Ryusuke
Format Journal Article
LanguageEnglish
Japanese
Published The Heat Transfer Society of Japan 2013
Subjects
Evaporation
Experiment
Heat Pipe
Heat pipes
Heat transfer
Pure water
Reduction
Sodium
Surfactant
Surfactants
Thermal resistance
Thermosiphon
Thermosiphons
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Summary:Cooling characteristic of the thermosiphon type heat pipe by adding the surfactant to pure water is examined. Sodium myristate which has good hydrophilicity and foamability is used as a surfactant. The experimental results show reduction of total thermal resistance for surfactant solution is about 10~40 % with concentration of 30ppm compared to pure water. Reduction of thermal resistance of condenser is primal effect on the reduction of total thermal resistance. On the other hand, thermal resistance of evaporator is not changed with surfactant concentration so much compared to pure water. However, the start-up characteristic of heat pipe at low temperature operating condition is improved with addition of surfactant due to activated bubble formation.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0918-9963
1882-2592
DOI:10.11368/tse.21.95