https://scholars.lib.ntu.edu.tw/handle/123456789/546862
Title: | An energy-efficient vertical-shaft seawater desalination plant | Authors: | Lin, T.-C. FALIN CHEN |
Keywords: | Cost reduction; Energy efficiency; Reverse osmosis modules; Seawater desalination plant; Vertical shaft | Issue Date: | 2020 | Journal Volume: | 174 | Start page/Pages: | 38-45 | Source: | Desalination and Water Treatment | Abstract: | We propose a design of a seawater desalination plant (SDP) consisting of two vertical shafts underground. One shaft is designed for producing freshwater, in which the reverse osmosis modules (ROMs) are installed several hundred meters deep. The other shaft is used to reserve the brine rejected from the ROMs. The pressure required to force the seawater to penetrate through the ROMs is provided by the hydrostatic pressure of seawater of 550 m deep or more. Consequently, the main energy consumption of the SDP is the power required to pump the freshwater up to the ground. Therefore, if coupled with other sporadic energy consumptions, the energy consumption per cubic meter of freshwater produced is approximately 2 kWh/m3, which can be generated by, for instance, wind turbines or photovoltaic panels on the ground. In the case where the generated brine can be fully recovered, the entire SDP is a non-polluted freshwater production facility, which is quite in line with today’s energy and environmental requirements. © 2020 Desalination Publications. |
URI: | https://www.scopus.com/inward/record.url?eid=2-s2.0-85077990438&partnerID=40&md5=127ebdcefa4f5d4c8319d8bbc3ab664b https://scholars.lib.ntu.edu.tw/handle/123456789/546862 |
DOI: | 10.5004/dwt.2020.24847 | SDG/Keyword: | brine; desalination; energy efficiency; reverse osmosis; seawater; water treatment plant |
Appears in Collections: | 應用力學研究所 |
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