Development and Investigation of a Miniature Copper-Acetone Loop Heat Pipe with a Flat Evaporator

Autor:	M.A. Chernysheva, V.G. Pastukhov, Yury F. Maydanik
Rok vydání:	2015
Předmět:	Heat pipe Materials science Gravitational field chemistry Thermal resistance Loop heat pipe Micro-loop heat pipe Thermodynamics Working fluid chemistry.chemical_element Composite material Conductivity Copper
Zdroj:	Journal of Electronics Cooling and Thermal Control. :77-88
ISSN:	2162-6170 2162-6162
DOI:	10.4236/jectc.2015.54006
Popis:	The paper presents the results of development and investigation of a copper miniature loop heat pipe (LHP) with acetone as a working fluid. The device was equipped with a flat evaporator measuring 80 × 42 × 7 mm and vapor and liquid lines with an outside diameter of 3 mm, whose lengths were 145 mm and 175 mm, respectively. The LHP was tested at heat loads from 5 W to 60 W, different orientations in the gravity field and heat-sink temperatures from -40°C to +50°C. It is shown that the LHP retains its efficiency at all testing conditions. It is also mentioned that at a heat-sink temperature of +50°C the device operates in the mode of constant conductivity in the whole range of heat loads, and in this case a minimum thermal resistance of the “heat source-heat sink” system equal to 0.16°C/W is achieved, which is independent of the LHP orientation in the gravity field.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::488a2ab915bd79f20538471907207b90 https://doi.org/10.4236/jectc.2015.54006 Zobrazit plný text záznamu