Titlebook: Direct-Contact Heat Transfer; Frank Kreith,R. F. Boehm Conference proceedings 1988 Springer-Verlag Berlin Heidelberg 1988 development.ener

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Solids Motion and Heat Transfer in Gas Fluidized Beds,solids and immersed surfaces, permitting direct heat removal at low temperature drop using immersed heat-exchange tubes. Fluidized beds are also used in various configurations as heat exchangers. These and many other applications can be found in standard references (Kunii and Levenspiel, 1969; Davidson and Harrison, 1971; Kunii and Toei, 1983).

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he Solar Energy Research Insti- tute in the summer of 1985. We served as organizers for this workshop, which em- phasized an area of thermal engineering that, in our opinion, has great promise for the future, but has not yet reached the point of wide-spread commercial application. Hence, a summary o

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Industrial Practices and Two-Phase Transport,rocess design because they have little knowledge of it. Emphasis was on gas-liquid contactors; design equations with and without heat transfer were presented. Major problems associated with using direct-contact heat transfer in the process industries are

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Mass Transfer Effects in Heat Transfer Processes,nd gas adsorption are examples. Gas-liquid, liquid-liquid, or fluid-solid systems are passed through devices such as packed towers, plate towers, fixed or fluidized beds, spray, and bubble towers designed to promote physical contact of the phases.

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Direct-Contact Evaporation,cient speed to break through the interfacial surface tension; i. e., they possess kinetic energy exceeding the work function of cohesion at the surface. Since only a small portion of the molecules is at any instant located near enough to the surface and moving in the proper direction to escape, the rate of evaporation is limited.

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