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Experimental investigation of a multi-effect active solar still: The effect of the number of stages

Karimi Estahbanati, M. R ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1016/j.apenergy.2014.09.082
  3. Publisher: Elsevier Ltd , 2015
  4. Abstract:
  5. In this work, the effect of the number of stages on the productivity of a multi-effect active solar still was experimentally investigated for the first time. Moreover, system performances in continuous and non-continuous modes were compared. For this purpose, indoor experiments were conducted on 4 similar solar still devices with different stages (1-4 stages) in order to accurately control the environmental conditions. In addition, water production was hourly measured during the whole 24-h experiment. The results show that with increased number of stages, distillate production can be predicted with a quadratic function. Moreover, adding a maximum of 6 and 10 additional stages can significantly increase production in continuous and non-continuous modes, respectively. It was also concluded that with more stages, the production enhancement is more in the continuous mode compared to the non-continuous mode, in a way that there is no significant difference between the performance of the single-stage device in continuous and non-continuous modes
  6. Keywords:
  7. Continuous and non-continuous modes ; Multi-effect active solar still ; The number of stages ; Active solar still ; Continuous mode ; Experimental investigations ; Multi-effect ; Water desalination ; Solar energy ; Desalination ; Distillation ; Experimental study ; Operations technology ; Performance assessment ; Solar power
  8. Source: Applied Energy ; Volume 137 , 2015 , Pages 46-55 ; 03062619 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0306261914010307