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Two-Phase Fluid Flow in Microchannels
Angol
171 b
30 nap a termék visszaküldésére
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An extensive experimental two-phase flow study has §been carried out on two single round microtubes for §refrigerants. First of all, an optical measurement §method for two-phase flow pattern characterization §in microtubes was developed to determine the §frequency of bubbles exiting a micro-evaporator, §their coalescence rates and lengths as well as their §mean two-phase vapor velocity. Based on the bubble §frequency results and CHF (Critical Heat Flux) §measurements made on the micro-evaporator (predicted §with a new microchannel version of the Katto-Ohno §correlation), a new type of flow pattern map for §evaporating flow in microchannels was proposed. This §flow pattern map may in the future be used as the §starting point for the development of heat transfer §and pressure drop models and the thermal design of §micro-evaporators. In addition, an extensive new two-§phase pressure drop database was obtained.
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Angol
