Solar-heated submerged vacuum membrane distillation system with agitation techniques for desalination
نویسندگان
چکیده
Submerged membrane distillation (S-MD) has been proposed as an alternative to conventional cross-flow MD systems desalinate hypersaline water. In S-MD systems, the hydrophobic is submerged in feed water tank that directly heated by electric heating element, eliminating need for pumping. this study, a solar-heated vacuum (S-VMD) system uses evacuated tube collector container proposed. Indoor tests under steady-state operating conditions and daily outdoor ambient weather were conducted investigate system’s functionality. The effect of two agitation techniques (aeration internal circulation) reduce temperature concentration polarizations studied. performance revealed S-VMD can achieve permeate flux 5.9–11.1 kg·m?2·h?1 depending on solar intensity. was enhanced 9% aeration 22% circulation tests. production per absorbing area be high 0.96 kg·m?2·h?1. maintained stable excellent quality over long-term operation. small-scale provide fresh remote areas with limited natural resources.
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ژورنال
عنوان ژورنال: Separation and Purification Technology
سال: 2021
ISSN: ['1873-3794', '1383-5866']
DOI: https://doi.org/10.1016/j.seppur.2020.117855