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Solar Distillation System Based on Multiple-Effect Diffusion Type Still

Original scientific paper

Journal of Sustainable Development of Energy, Water and Environment Systems
Volume 2, Issue 1, pp 41-50
DOI: https://doi.org/10.13044/j.sdewes.2014.02.0004
Bin-Juine Huang1 , Tze-Ling Chong1, Hsien-Shun Chang1, Po-Hsien Wu1, Yeong-Chuan Kao2
1 Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan
2 Department of Physics, National Taiwan University, Taipei, Taiwan


The present study intends to develop a high-performance solar-assisted desalination system (SADS) using multi-effect diffusion type still (MEDS) and the vacuum tube solar collector (VTSC). A MEDS prototype was designed and built. The measured result is very close to the estimation. The 10-effect MEDS will produce pure water at about 13.7 L/day/m2 collector area at a solar irradiation of 600 W/m2 and 19.7 L/day/m2 collector area at solar irradiation 800 W/m2. For 20-effect still, the yield rate increase is 32% compared to 10-effect still.

Keywords: Solar desalination, Solar still, Multi-effect diffusion, Multi-effect diffusion solar still, Solar water purification, Solar distillation

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