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首页> 外文期刊>Electrical engineering in Japan >Open-Cycle OTEC Systems with Freshwater Product: Effects of Noncondensable Gases on Performance of Condenser
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Open-Cycle OTEC Systems with Freshwater Product: Effects of Noncondensable Gases on Performance of Condenser

机译：具有淡水产品的开放式OTEC系统：不可冷凝气体对冷凝器性能的影响

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An open-cycle ocean thermal energy conversion (OC-OTEC) system is one of the energy conversion methods used to generate electricity from ocean thermal energy. For the OC-OTEC system, steam evaporated from the surface seawater due to flash evaporation drives the turbine. At that time, dissolved gas such as air is introduced into the low-pressure system (OC-OTEC system) as the noncondensable gas, which degrades the performance of condensation heat transfer. In this paper, a small-scale OC-OTEC experimental unit experimentally investigates the effect of noncondensable gas on the heat transfer performance in a condenser. The experimental results are discussed in comparison with theoretical estimation by the Sparrow-Lin method. It is shown that the condensation is occupied by heat and mass transfer near a condensation surface and that the condensation efficiency is affected by exhaust quantity of noncondensable gas at a relatively high concentration ratio of condensable gas.
机译：开放周期海洋热能转换（OC-OTEC）系统是用于从海洋热能发电的能源转换方法之一。对于OC-OTEC系统，由于闪蒸而从地表海水蒸发的蒸汽驱动了涡轮机。那时，诸如空气的溶解气体作为不可冷凝气体被引入低压系统（OC-OTEC系统），这降低了冷凝热传递的性能。在本文中，一个小型OC-OTEC实验装置通过实验研究了不可冷凝气体对冷凝器传热性能的影响。通过与Sparrow-Lin方法的理论估计相比较，讨论了实验结果。结果表明，在冷凝表面附近，冷凝被热量和质量传递所占据，并且冷凝效率受可冷凝气体相对较高的浓度比下不可冷凝气体的排气量影响。

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