環境工学総合シンポジウム講演論文集
Online ISSN : 2424-2969
セッションID: 408
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小温度差オーガニックランキンサイクルの最適作動媒体探索
山根 大宮崎 隆彦小山 繁内山 典人前田 典生土肥 弘敬
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Low grade thermal energy, such as waste heat from industry and renewable energy is abundant source. Organic Rankine cycles (ORC) is a measure to recover electricity from low grade thermal energy. In this study, an ORC 50°C level heat source was investigated by thermodynamic cycle analysis that is driven by sources. A cycle performance under given temperature condition was computationally obtained by Engineering equation solver (EES). 69 working fluids were calculated in EES, and compared in terms of net thermal efficiency. It was fluid that refrigerant R407C achieved the highest net thermal efficiency because its zeotropic characteristic.

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