熱駆動ポンプシステムの性能に対する蒸発速度の向上の影響

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  • Investigation of the enhancement of evaporation rate and its effect on the performance of a thermally driven pumping system

説明

<p>In the current study, the enhancement of evaporation rate for a thermally driven pumping system was investigated experimentally. Porous copper insert of variable density was applied into the evaporation chamber of the system as a method of evaporation enhancement. The investigation was carried out in a TDP system that was developed for waste heat utilization from microgrid system for rural area applications. The experiment results showed a variable level of evaporation rate and the thermal efficiency of the system. The observed general trend is that the heat transfer rate and the delivery flow rate of the system are improved significantly with the decrease of the porosity of the mesh while the thermal efficiency of the system shows an optimum level. The enhancement method resulted in 47 – 144 % increment of the heat transfer rate and 38 - 186% increment in the delivery flow rate of the system in comparison to the case where no porous mesh was used. Generally, the results seem to suggest that the enhancement method could be promising for the intended application.</p>

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