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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-421-2

International Heat Transfer Conference 15
August, 10-15, 2014, Kyoto, Japan

Preliminary Experimental Study on Start-up Behavior in Nitrated Gravity Heat Pipe

Get access (open in a dialog) DOI: 10.1615/IHTC15.tmg.009354
pages 8069-8076

Sinopsis

Molten salt is a kind of effective heat transfer fluid. Molten nitrate is employed as the heat transfer fluid of heat pipes in this paper. Then the startup operation of heat pipes is investigated experimentally. Shell of heat pipes tested is made in 316L stainless steel with outer diameter of 22 mm, wall thickness of 2 mm and total length of 980 mm. Experiment results show that the molten salt heat pipe can start up very well, startup time period of molten salt heat pipes is shorter than that of a heat pipe with 40g naphthalene, and temperature difference between evaporation zone and condensation zone while start-up time at inclination angle of 50° is smaller than those at 30°,70° and 90°. Initial experiments show that the molten salt is feasible as the heat transfer fluid of heat pipes.