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Increasing Solar Still Yields with New Phase Change Materials

AIP Conference Proceedings, ISSN: 1551-7616, Vol: 2631
2023
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Conference Paper Description

The major disadvantage of solar stills of all kinds is that they work only during the day due to their dependency on the heat from solar radiation. To address this problem, thermal energy storage, such as phase change materials, can be used. These materials can store large amounts of thermal energy as latent heat to be used when needed. In this paper, a practical experiment was thus performed using new phase change materials (PVP K30, polyvinylpyrrolidone, and PAA, polyacrylic acid) to attempt to improve the efficiency of solar distillation of pure water from saline. These materials are characterised by their ability to perform the absorption and release of large amounts of heat by changing phase without changing properties. They are readily available on the market, as well as being harmless, and compatible with the substances used. Experiments were conducted at the end of October and the beginning of November for a duration of 14 hours, with work starting at eight in the morning and ending at ten in the evening. The new materials contributed to increasing the distillation time, extending it 4 to 5 hours after sunset, which increased the daily production by 48 to 70%.

Bibliographic Details

Abbas Sahi Shareef; Hayder Jabbar Kurji; Hassan Abdulameer Matrood

AIP Publishing

Physics and Astronomy

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