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Design, Fabrication and Performance Evaluation of Active Solar Still under Forced Circulation Mode

Author Affiliations

  • 1Department of Mechanical Engineering, Bhagwant University, Rajasthan, INDIA
  • 2 Deparment of Mechanical Engineering, Galgotias College of Engineering and Technology, Greater Noida, UP, INDIA

Res. J. Engineering Sci., Volume 2, Issue (6), Pages 6-12, June,26 (2013)


Water is fundamental to human life on earth for survival and good health. Access to safe water is a major challenge in many communities in developing countries. As world population and social-economic growth, societies are challenged to provide fresh water to meet those needs for all of their people. Growing demands of freshwater resources are creating an urgent need to develop self sustained system to meet the demand of fresh water. Among the conventional distillation process, solar desalination process seems to be a suitable solution for resolving this existing demand of fresh water. Solar water distillation removes impurities such as salts and heavy metals as well as eliminates microbiological organisms. In this study, a basin type double slope active solar still was designed and fabricated, and a performance evaluation were carried out for different water depths viz. 0.03 m, 0.04 m and 0.05 m. The distillate output is maximum 4.82 kg for 0.03m water depth and minimum 4.36 kg for 0.05 m water depth. The maximum instantaneous thermal efficiency is 46.96 at 0.04 m water depth.


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