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A characteristic study on the start-up performance of molten-salt heat pipes: Experimental investigation.
- Source :
-
Experimental Thermal & Fluid Science . Apr2017, Vol. 82, p433-438. 6p. - Publication Year :
- 2017
-
Abstract
- This paper reports a fundamental experimental investigation of the start-up characteristics of heat pipes using a dedicated molten-salt mixture as the working fluid. Based on four single salt, i.e. NaNO 3 (AR), KNO 3 (AR), LiNO 3 (AR) and Ca(NO 3 ) 2 (AR), a quaternary molten-salt working fluid was developed and charged at different masses into four heat pipes with the same dimensions of 980 mm in length and 22 mm in diameter. A parallel comparison on the start-up performance of these heat pipes was then conducted to observe the influence of the charging mass and the inclination angle under the consistent lab-controlled conditions. The experimental results showed the heat pipe with molten-salt charge of 40 g responded much quicker than those with molten salt charge of 60 g, 70 g and 80 g respectively; meanwhile, the molten-salt heat pipe achieved the maximum condensation temperature at inclination angle of 50°. Comparing to the conventional naphthalene heat pipe, the dedicated molten-salt heat pipe had a much shorter start-up time when they were charged with the same amount of 40 g. The overall research result is expected to provide certain guidance for further design and operation of molten-salt heat pipe in high-and-medium-temperature heat transfer and storage scenarios. [ABSTRACT FROM AUTHOR]
- Subjects :
- *FUSED salts
*HEAT pipes
*FLUID dynamics
*NAPHTHALENE
*WORKING fluids
Subjects
Details
- Language :
- English
- ISSN :
- 08941777
- Volume :
- 82
- Database :
- Academic Search Index
- Journal :
- Experimental Thermal & Fluid Science
- Publication Type :
- Academic Journal
- Accession number :
- 120523989
- Full Text :
- https://doi.org/10.1016/j.expthermflusci.2016.11.031