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Desalination of salty water using vacuum spray dryer driven by solar energy
KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik. University of Southern Queensland, Australia.ORCID-id: 0000-0002-4900-5633
2017 (engelsk)Inngår i: Desalination, ISSN 0011-9164, E-ISSN 1873-4464, Vol. 404, s. 182-191Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

This paper addresses evaporation under vacuum condition with the aid from solar energy and the recovered waste heat from the vacuum pump. It is a preliminary attempt to design an innovative solar-based evaporation system under vacuum. The design details, equipment required, theoretical background and work methodology are covered in this article. Theoretically, based on the energy provided by the sun during the day, the production rate of pure water can be around 15 kg/m2/day. Assumptions were made for the worst case scenario where only 30% of the latent heat of evaporation is recycled and the ability of the dark droplet to absorb sun energy is around 50%. Both the waste heat from the pump and the heat collected from the photovoltaic (PV) panels are proposed to raise the temperature of the inlet water to the system to its boiling point at the selected reduced pressure.

sted, utgiver, år, opplag, sider
Elsevier, 2017. Vol. 404, s. 182-191
Emneord [en]
Desalination, Evaporation, Solar energy, Vacuum, Waste heat
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-200989DOI: 10.1016/j.desal.2016.11.015ISI: 000392165500018Scopus ID: 2-s2.0-84995957106OAI: oai:DiVA.org:kth-200989DiVA, id: diva2:1072291
Merknad

QC 20170207

Tilgjengelig fra: 2017-02-07 Laget: 2017-02-07 Sist oppdatert: 2017-11-29bibliografisk kontrollert

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