TAILIEUCHUNG - Thomas and Balakrishna Panicker Sobhan Nanoscale Research Letters 2011, 6:377

Thomas and Balakrishna Panicker Sobhan Nanoscale Research Letters 2011, 6:377 NANO REVIEW Open Access A review of experimental investigations on thermal phenomena in nanofluids Shijo Thomas and Choondal Balakrishna Panicker Sobhan* Abstract Nanoparticle suspensions (nanofluids) have been recommended as a promising option for various engineering applications, due to the observed enhancement of thermophysical properties and improvement in the effectiveness of thermal phenomena. A number of investigations have been reported in the recent past, in order to quantify the thermo-fluidic behavior of nanofluids. This review is focused on examining and comparing the measurements of convective heat transfer and phase change in nanofluids, with an emphasis. | Thomas and Balakrishna Panicker Sobhan Nanoscale Research Letters 2011 6 377 http content 6 1 377 o Nanoscale Research Letters a SpringerOpen Journal NANO REVIEW Open Access A review of experimental investigations on thermal phenomena in nanofluids Shijo Thomas and Choondal Balakrishna Panicker Sobhan Abstract Nanoparticle suspensions nanofluids have been recommended as a promising option for various engineering applications due to the observed enhancement of thermophysical properties and improvement in the effectiveness of thermal phenomena. A number of investigations have been reported in the recent past in order to quantify the thermo-fluidic behavior of nanofluids. This review is focused on examining and comparing the measurements of convective heat transfer and phase change in nanofluids with an emphasis on the experimental techniques employed to measure the effective thermal conductivity as well as to characterize the thermal performance of systems involving nanofluids. Introduction The modern trends in process intensification and device miniaturization have resulted in the quest for effective heat dissipation methods from microelectronic systems and packages owing to the increased fluxes and the stringent limits in operating temperatures. Conventional methods of heat removal have been found rather inadequate to deal with such high intensities of heat fluxes. A number of studies have been reported in the recent past on the heat transfer characteristics of suspensions of particulate solids in liquids which are expected to be cooling fluids of enhanced capabilities due to the much higher thermal conductivities of the suspended solid particles compared to the base liquids. However most of the earlier studies were focused on suspensions of millimeter or micron sized particles which although showed some enhancement in the cooling behavior also exhibited problems such as sedimentation and clogging. The gravity of these problems has been .

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