Enhanced performance of a direct contact membrane distillation (DCMD) system with a Ti/MgF2 solar absorber under actual weather environments

Jaewon Shin; Hye Jin Lee; Byung Min An; Junki Kim; Jinsoo Cho; Dasom Wang; Kyung Guen Song; Won Jun Choi; Jeong Min Baik; Seungkwan Hong

doi:10.1016/j.desal.2020.114580

Enhanced performance of a direct contact membrane distillation (DCMD) system with a Ti/MgF₂ solar absorber under actual weather environments

Jaewon Shin, Hye Jin Lee, Byung Min An, Junki Kim, Jinsoo Cho, Dasom Wang, Kyung Guen Song, Won Jun Choi, Jeong Min Baik, Seungkwan Hong

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

In this study, we report on a solar membrane distillation (MD) system with a 5-stack Ti/MgF₂ solar absorber adapted as a heat source under actual weather conditions. The 5-stack Ti/MgF₂ solar absorber showed light absorption of 85% over the wavelength range from 0.3 to 2.5 μm. This consequently induced greater heat and a two-fold greater water heating capability up to 80 °C for water in a closed water tank without insulation under a 1-sun illumination. The enhanced solar absorption of the Ti/MgF₂ solar absorber showed a 12% improvement in permeate flux of the integrated MD system compared with a system without a solar absorber. Under actual weather conditions, the solar DCMD system with the Ti/MgF₂ solar absorber successfully produced distillate water in the range of 0.51–4.78 L/m²·day depending on weather conditions. Despite unfavorable solar irradiance conditions in autumn, the integrated DCMD system with the Ti/MgF₂ solar absorber proved superior to a conventional commercial evacuated-tube solar collector in terms of daily production of distillate water and solar energy requirements for certain amounts of distillate.

Original language	English
Article number	114580
Journal	Desalination
Volume	491
DOIs	https://doi.org/10.1016/j.desal.2020.114580
Publication status	Published - 2020 Oct 1

Bibliographical note

Funding Information:
This research was supported by a grant (code 18CTAP-C116746-02 ) from Korea Agency for Infrastructure Technology Advancement funded by Ministry of Land, Infrastructure and Transport of Korean Government and partially by the Technology development Program of MSS ( S2717300 ).

Publisher Copyright:
© 2020 Elsevier B.V.

Keywords

Decentralized water supply
Desalination
Enhanced light absorption
Membrane distillation
Solar absorber

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science
Water Science and Technology
Mechanical Engineering

Access to Document

10.1016/j.desal.2020.114580

Cite this

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title = "Enhanced performance of a direct contact membrane distillation (DCMD) system with a Ti/MgF2 solar absorber under actual weather environments",

abstract = "In this study, we report on a solar membrane distillation (MD) system with a 5-stack Ti/MgF2 solar absorber adapted as a heat source under actual weather conditions. The 5-stack Ti/MgF2 solar absorber showed light absorption of 85% over the wavelength range from 0.3 to 2.5 μm. This consequently induced greater heat and a two-fold greater water heating capability up to 80 °C for water in a closed water tank without insulation under a 1-sun illumination. The enhanced solar absorption of the Ti/MgF2 solar absorber showed a 12% improvement in permeate flux of the integrated MD system compared with a system without a solar absorber. Under actual weather conditions, the solar DCMD system with the Ti/MgF2 solar absorber successfully produced distillate water in the range of 0.51–4.78 L/m2·day depending on weather conditions. Despite unfavorable solar irradiance conditions in autumn, the integrated DCMD system with the Ti/MgF2 solar absorber proved superior to a conventional commercial evacuated-tube solar collector in terms of daily production of distillate water and solar energy requirements for certain amounts of distillate.",

keywords = "Decentralized water supply, Desalination, Enhanced light absorption, Membrane distillation, Solar absorber",

author = "Jaewon Shin and Lee, {Hye Jin} and An, {Byung Min} and Junki Kim and Jinsoo Cho and Dasom Wang and Song, {Kyung Guen} and Choi, {Won Jun} and Baik, {Jeong Min} and Seungkwan Hong",

note = "Funding Information: This research was supported by a grant (code 18CTAP-C116746-02 ) from Korea Agency for Infrastructure Technology Advancement funded by Ministry of Land, Infrastructure and Transport of Korean Government and partially by the Technology development Program of MSS ( S2717300 ). Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

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AU - Shin, Jaewon

AU - Lee, Hye Jin

AU - An, Byung Min

AU - Kim, Junki

AU - Cho, Jinsoo

AU - Wang, Dasom

AU - Song, Kyung Guen

AU - Choi, Won Jun

AU - Baik, Jeong Min

AU - Hong, Seungkwan

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PY - 2020/10/1

Y1 - 2020/10/1

N2 - In this study, we report on a solar membrane distillation (MD) system with a 5-stack Ti/MgF2 solar absorber adapted as a heat source under actual weather conditions. The 5-stack Ti/MgF2 solar absorber showed light absorption of 85% over the wavelength range from 0.3 to 2.5 μm. This consequently induced greater heat and a two-fold greater water heating capability up to 80 °C for water in a closed water tank without insulation under a 1-sun illumination. The enhanced solar absorption of the Ti/MgF2 solar absorber showed a 12% improvement in permeate flux of the integrated MD system compared with a system without a solar absorber. Under actual weather conditions, the solar DCMD system with the Ti/MgF2 solar absorber successfully produced distillate water in the range of 0.51–4.78 L/m2·day depending on weather conditions. Despite unfavorable solar irradiance conditions in autumn, the integrated DCMD system with the Ti/MgF2 solar absorber proved superior to a conventional commercial evacuated-tube solar collector in terms of daily production of distillate water and solar energy requirements for certain amounts of distillate.

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KW - Decentralized water supply

KW - Desalination

KW - Enhanced light absorption

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