碩士 / 國立中興大學 / 食品暨應用生物科技學系所 / 100 / Clean water is an important resource for human survival, especially for many backward areas that are unable to obtain purified water due to social, technical and financial factors. The present study aimed to develop simple, convenient and affordable water distillation systems that could produce potable water using simple and affordable technology.
In the experimental design, we evaluated the novel use of a heat-absorber as an efficient way to obtain distilled water. Parameters like the color and material of the heat-absorber, the sunlight absorption area of the heat-absorber, and the feasible amount of water to be processed in each distillation cycle were discussed in this study as the main factors that could affect the evaporation efficiency.
The results demonstrated that the inclusion of a heat-absorber improved the efficiency of evaporation of sea water. The incorporation of solid heat-absorber and textile heat-absorber enhanced the evaporation efficiency by 25% and 40%, respectively, when compared to the control. Different colors and types of heat-absorbers were also found to affect the water evaporation efficiency. Among the tested samples, porous rocks and black non-woven cloth were found to the most efficient among solid and textile heat-absorbers. This study also verified that textile heat-absorbers with lager sunshine areas could evaporate more water.
In addition, the amount of water added during evaporation was found to affect the efficiency of water evaporation as well. Since the addition of excess water could reduce the evaporation efficiency, it was found that keeping a moderate but steady flow of water input should produce the best efficiency for our solar distiller.
In conclusion, it was believed that the prototypes designed in this study could be used as reference models of affordable solar distillers for rural coastal areas. With further modification and upgrade, this experimental design could even be used for emergency relief or serve as a foundation of future desalination device.
| Identifer | oai:union.ndltd.org:TW/100NCHU5253057 |
| Date | January 2012 |
| Creators | Kit-Hong Lee, 李傑鴻 |
| Contributors | Chi-Fai Chau, 周志輝 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 54 |
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