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Experimental Investigation of Double Wall Solar Still

Favakeh, Amir Hossein | 2016

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 48341 (58)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Shafii, Mohammad Behshad; Sadrhosseini, Hani
  7. Abstract:
  8. Salt water is desalinated to produce fresh water suitable for human consumption or irrigation. Most of desalination methods require consuming large amounts of fossil fuels. Solar distillation is one of the best techniques from another available techniques for desalinating in small-scale brackish water. The main problem of these systems is the low rate of water production.Single basin solar still is a very simple solar device used for converting available brackish or waste water into potable water. This device can be fabricated easily with locally available materials. The maintenance is also cheap and no skilled labor is required. It can be a suitable solution to solve drinking water problem. Producing desalinated water from solar still walls, increases productivity about 39% compared to single solar still and reflective radiation losses are covered as well.In this research, a double wall solar still will be designed and manufactured to examine the increase of the hourly efficiency. The experimental data has been taken during summer period in Sharif Energy Research Institute (SERI). Various tests were done to show the impact of different modes such as height of water, impact of metal foam, shadow on the system walls and heat sink on the system; and at the end the data is compared with single basin solar still. Water production in every hour has been measured to calculate the hourly efficiency for finding the amount of collected water per watt of radiant. The results show that by producing water from side walls the amount of water production and the hourly efficiency of this device increases and maximum amount of them are 6.22kg/m^2and 80%
  9. Keywords:
  10. Desalination ; Solar Energy ; Solar Still ; Water Desalination

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