Steady-state experimental study of a closed recycle solar still with enhanced falling film evaporation and regeneration

Zheng Hongfei and Ge Xinshi

Renewable Energy, 2002, vol. 26, issue 2, 295-308

Abstract: An active regenerative solar still with an area of 1.03 m2, enabling one to reuse the latent heat of condensation and sensible heat of brine, is constructed and tested indoors, using a solar simulator for irradiation. In this still, a considerable fraction of the latent and sensible heat is successfully recycled and utilized for preheating the feedstock and recycling air via a falling film evaporator–condenser. The forced thin layer evaporation and film condensation, which are the efficient enhanced processes for heat transfer, are applied in this unit. As a result, the performance ratio of the unit is about two to three times greater than that of a conventional basin-type solar still (single-effect).

Keywords: Solar distillation; Falling film evaporation; Active regeneration; Closed circulation (search for similar items in EconPapers)
Date: 2002
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:26:y:2002:i:2:p:295-308

DOI: 10.1016/S0960-1481(00)00208-1

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