Heat pipe theory and practice 1976 edition open library. The heat pipe is one of the remarkable achievements of thermal physics and heat transfer engineering in this century because of its unique ability to transfer. Ats engineering ebook advanced thermal solutions, inc. Loop heat pipe with coherent porous wick since the porous material used for current heat pipes is usually stochastic structure, it is hard to apply analytical or numerical methods for design optimization. A rule of thumb for the effective thermal conductivity of a heat pipe is 4000 wmk. The working fluids tested are diwater, silverwater colloid. Pdf analysis of a heat pipe to obtain maximum heat transfer. However, in an actual application when a heat pipe is soldered or epoxied to the base of a heat sink, the effective thermal conductivity of the heat pipe may be drastically reduced due to the extra thermal resistances added by the bonding. Advanced cooling technologies yale eastman currently a director of act, a few years later describes the theory and history of the heat pipe technology in an article published in scientific american, may 1968. Heat pipes, 6th edition, takes a highly practical approach to the design and selection of heat pipes, making it an essential guide for practicing engineers and an ideal text for postgraduate students.
Design using catia software and fabrication of the heat pipe is done. Pdf thermal performance of cylindrical heat pipe using. Heat pipe for hvac systems heat pipe theory dac sales. Theory of heat pipe porosity in order for the heat pipe to operate the wet ability maximum capillary pumping head. Flanges can be added on the outer surface for easy integration with instruments or radiators the flange is an integral part of the extrusion. Beginning with a definition of the problem, including the temperature. Heat pipes hardware m t l l i t b ith th i fmetal aluminum tube with grooves on the inner surface cold t ild extrusion grooves are filled with the working fluid water, ammonia, propylene, etc.
Project description by means of knowledge about the theory of heat pipes, one is now able to carry out a basic calculation of a heat pipe. Mathematical model for heat transfer limitations of heat pipe. Easy to understand, learn the working and principle of heat pipes. In this chapter, we will discuss the theory of heat pipe with an approach that our readers have no knowledge of advanced mathematics, physics, and heat pipe. Heat transfer limitations of water wick heat pipe with sintered capillary structure heat pipe inner diameter 20 mm. A loop heat pipe with coherent pores integrated to the heat source is considered as a calculation model in this paperfig. Pdf with its unique ability to transfer heat over large distances with minimal loss, the heat pipe has emerged.