碩士 / 國立臺灣大學 / 應用力學研究所 / 106 / In the 21st century, due to the rapid population growth and climate change, water resources have become extremely scarce. In order to solve the problem of the lack of water resources in the world, we have developed many different seawater desalination technologies.
The desalination technology allows people to have inexhaustible water resources, but at the same time you desalinate seawater, it will cause Brine emission problems, noise pollution, air pollution, and huge energy consumption. In order to reduce the huge energy consumption during seawater desalination, this paper includes two designs of desalination plant to solve this problem. The first desalination plant applies static hydrostatic pressure which generated by 600 meters deep to push the RO membrane to produce pure water. When the water production rate is 12540 (KWh / m3), the energy consumption per ton of pure water is 2.018 (KWh/m3), and then we increase the production rate to 20,000 (m3/day) , the energy consumption per ton of pure water is 2.11 (KWh/m3).This result is obviously lower than the traditional desalination plant 3-10 (KWh/m3).
In the second deisign, we apply hydrostatic pressure and pascal''s principle for seawater desalination. In the desalination plant with sixteen grooves, the energy consumption per ton of pure water is 3.17 (KWh/m3). Although the required energy consumption is almost the same as the lowest energy consumption of the conventional desalination plant,for many desalination plants, 3 (KWh/m3)per ton of pure water is still a minority. In addition, the grooved desalination plant does not need to design a shaft with a depth of 600 meters, which can make the overall construction cost lower and make the entire desalination plant more maintainable.
| Identifer | oai:union.ndltd.org:TW/106NTU05499054 |
| Date | January 2018 |
| Creators | Tzu-Chin Lin, 林子覲 |
| Contributors | Falin Chen, 陳發林 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 59 |
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