プレート式熱交換器における蒸発および凝縮現象の可視化に関する研究

（入口クオリティの影響）

抄録

The low-grade thermal energy conversion (LTEC) can generate electricity using so small temperature difference between heat sources compared with conventional power plant that the optimized heat exchangers are required. In LTEC the plate heat exchangers are adopted. The ultimate purpose this research is to optimize the plate surface geometry for LTEC. As a first step, in this paper, the visualization of evaporation and condensation inside of whole PHE with the variable various inlet quality of working fluid (HFE7000). Furthermore, the effects of inlet quality of working fluid on the flow pattern were investigated.