caturwati, Ni Ketut and Yusuf, Yusvardi and arifin, zaenal (2020) Productivity of Solar Distillation in Indonesia using Sodium Thiosulfate Penta-hydrate as Thermal Energy Storage. Technium, 2 (5). pp. 1-10. ISSN 2668-778X

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Abstract

The maximum temperature of water in solar distillate system determines the effectiveness of applying a Phase Change Materials (PCMs) as Thermal Energy Storage (TES). This paper evaluates the effectiveness of using Sodium Thiosulfate Penta-Hydrate as PCMs for double slope solar distillation systems operating in the Cilegon-Indonesia. The results of 5 tests during the day showed the average water temperature value in the basin with PCMs reaching 42.4 ˚C and without PCMs reaching 42.6 ˚C. While the maximum average temperature of water in the basin reaches 49.56 C for systems without PCMs and 49.2 C for systems with PCMs. Addition of PCMs in water increases distillate production at night if the maximum temperature of the water exceeds the melting point of the PCMs material (48 C). This is occurs when the maximum water temperature in the basin reaches 51 C, distillate production in systems with PCMs is 38% more than systems without PCMs.

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