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This work presents an experimental study of the n-pentane evaporation process in hot water to investigate the behaviour of drobbles and the performance of direct contact heat transfer. The evaporating drobble size distribution (DSD), Sauter mean diameters, interfacial areas of liquid–liquid heat transfer and n-pentane evaporation rate are measured at different n-pentane inlet flowrates and water temperatures...
The direct contact vaporization heat transfer is studied on a small circular interface which is a direct contact interface between the n-pentane injected in a tubule and the immiscible hot water flowing in the channel at the high velocity turbulent state. The interface water temperature is measured by infrared thermograph to obtain the actual driving temperature difference. The effects of water flow...
Direct liquid-immersion cooling of solar cells using dimethyl silicon oil is proposed as a heat dissipation solution for linear CPV (concentrating photovoltaic) systems. To reduce the liquid holdup, a narrow rectangular channel receiver was designed and its heat transfer performance was investigated experimentally at an energy flux ratio of 9.1 suns. Long-term stability of mono-crystalline concentrator...
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