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Evaluation of Heat Transfer Fluids for Solar Thermal Applications
Youngsuk Nam(남영석),Andrej Lenert,Evelyn Wang 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
The choice of heat transfer fluids has significant effects on the performance, cost and reliability of solar thermal collector. We evaluate existing heat transfer fluids such as oils and molten salts based on new figure of merit capturing the combined effects of thermal storage capacity, convective heat transfer characteristics and hydraulic performance of the fluids. Other issues including thermal stability, freezing point and safety are also discussed. This work will help evaluate and engineer heat transfer fluids for solar thermal applications such as solar thermal power plants.