Solar still with vapor adsorption basin: Performance analysis |
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| Affiliation: | 1. Roever Engineering College, Perambalur, Tamilnadu 621212, India;2. Thiagarajar College of Engineering, Madurai, Tamilnadu 625015, India;3. Grupo IDEA, Universidad de Jaen, Jaen 23071, Spain;4. Centre for Sustainable Energy Systems, Australian National University, Canberra 0200, Australia;1. IMDEA Water, Alcalá de Henares 28805, Spain;2. Tianjin University, Tianjin 300072, China;3. Grupo IDEA, Universidad de Jaén, Jaén 23071, Spain;4. Photovotaic Technology Group, University of Cyprus, Nicosia 1678, Cyprus;1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;2. School of Architecture, Tianjin University, Tianjin 300072, China;3. IMDEA Water, Alcalá de Henares 28805, Spain;4. Tianjin University Research Institute of Architectural Design, Tianjin 300072, China;1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;2. IMDEA Water, Alcalá de Henares 28805, Spain;3. IDEA Research Group, University of Jaén, Jaén 23071, Spain;4. School of Architecture, Tianjin University, Tianjin 300072, China;1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;2. IMDEA Water, Alcalá de Henares 28805, Spain;3. IDEA Research Group, University of Jaén, Jaén 23071, Spain;4. School of Architecture, Tianjin University, Tianjin 300072, China;1. Nano Interface Center for Energy (NICE), School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;2. State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China;3. Mechanical Engineering Department, Faculty of Engineering, Kafrelsheikh University, Kafrelsheikh, Egypt;4. Production Engineering and Mechanical Design Department, Faculty of Engineering, Tanta University, Tanta, Egypt;5. Mechanical Department, Faculty of Engineering and Technical Studies, El Imam El Mahdi University, Kosti, Sudan;6. Mechanical Power Engineering Department, Faculty of Engineering, Tanta University, Tanta, Egypt;1. Department of Energy Science and Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India;2. School of Energy Management, Shri Mata Vaishno Devi University, Katra 182320, J&K, India |
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| Abstract: | In this work, a vapor adsorption type solar still was designed, fabricated and tested at Thiagarajar College of Engineering, Madurai, India. A vapor adsorbent pipe network comprising activated carbon–methanol pair was integrated with the basin. Losses from the bottom of the still are considerably reduced due to sensible heat absorption by the activated carbon and latent heat of vaporization by methanol. Also water circulated through the inner tube of the adsorbent bed is used as a feed to basin, thus enhancing the evaporation rate during day time. The increase in temperature of the basin due to adsorbent bed and condensation of methanol vapor, augments the evaporation rate during the night time also. Sponges, gravels, sand and black rubbers were used in the vapor adsorption type solar still for improving the yield. Experimental results were compared with ordinary conventional basin type still. The governing energy balance equations for both conventional and vapor adsorption type solar still were solved analytically and compared with experimental results. Theoretical analysis gave very good agreement with experimental results. |
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| Keywords: | Solar still Vapor adsorption Desalination Efficiency Water purification |
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