Heat and Mass Transfer in Evaporator of Loop Heat Pipe

作者: M. A. Chernysheva , Y. F. Maydanik

DOI: 10.2514/1.43244

关键词: Thermal resistanceMaterials scienceMechanicsThermodynamicsLoop heat pipeCondenser (heat transfer)Heat transferEvaporatorMicro-loop heat pipeHeat pipeEvaporation

摘要: Investigation of heat-exchange processes in the evaporator a loop heat pipe is important for development transfer devices with low thermal resistances. A two-dimensional mathematical model active zone presented. Three modes vapor generation wick have been examined, where each differs mechanism phase formation and saturation capillary structure: 1) evaporation to grooves, 2) volumetric two-phase zone, 3) separated from heated wall by dried zones. Conditions identifying changes between formulated. Structural characteristics different pore sizes taken into account. Using numerical-analytical method, results were obtained three copper pipes biporous wicks, working fluid was water one methanol other two. The heat-load dependent temperature drop grooves has Additionally, comparative analysis calculated experimental performed.

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