Performance characteristics of gravity-assisted potassium heat pipes
نویسندگان
چکیده
منابع مشابه
Performance characteristics of pulsating heat pipes as integral thermal spreaders
In the recent past, Pulsating Heat Pipes (PHPs) have attracted the attention of many researchers as viable candidates for enhanced heat transfer through passive two-phase heat transfer mechanism. Although a complete theoretical understanding of operational characteristics of this device is not yet achieved, there are many emerging niche applications, ranging from electronics thermal management ...
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0017-9310/$ see front matter 2009 Elsevier Ltd. A doi:10.1016/j.ijheatmasstransfer.2009.12.007 * Corresponding author. E-mail address: [email protected] (K. Vafai). Analytical models are utilized to investigate the thermal performance of rectangular and disk-shaped heat pipes using nanofluids. The liquid pressure, liquid velocity profile, temperature distribution of the heat pipe wall, tempera...
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A theoretical analysis of transient fluid flow and heat transfer in a triangular micro heat pipes (MHP) has been conducted to study the thermal response characteristics. By introducing the system identification theory, the quantitative evaluation of the MHP’s transient thermal performance is realized. The results indicate that the evaporation and condensation processes are both extended into th...
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A detailed description of a concentric annular heat pipe (CAHP) operation is presented in low to moderate temperature ranges (50–200◦C). The steady-state response of a CAHP to various heat fluxes in the evaporator and condenser sections are discussed. Two-dimensional mathematical modeling of the fluid flow and heat transfer in the annular vapor space and the wicks are described. The fundamental...
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The article reflects the results of many years’ (since 1972) research of structural, hydrodynamic, thermophysical and mechanical properties of metal felt capillary structures (MFCS) of heat pipes (HP). These structures were made from the discrete copper, stainless steel, or nickel sintered fibres of 0.002 to 0.01-m length and diameter within 20 to 70 μm. They were intended for the HP with shell...
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ژورنال
عنوان ژورنال: Journal of Spacecraft and Rockets
سال: 1986
ISSN: 0022-4650,1533-6794
DOI: 10.2514/3.25821