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An experimental study of feedwater flow rate effects on technical and economic performances of a stepped solar still

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Abstract

In the present study, a galvanized iron stepped solar still is examined via a solar simulator with a radiation power of 904 W/m2. To enhance the evaporation rate, a number of galvanized iron fins were fabricated to create hot points on step surfaces. For the experimental study, the input feedwater flow rate was set to be 0.086, 0.098, 0.146, 0.167, and 0.190 lit/min, measuring the temperatures of different points in the system and freshwater production rate in the internal and external condenser during 150 min at each of these flow rates. Then, the temperature variations and distillate production rates were provided in the form of diagrams. To complete the study, the cost of distillate production in different conditions was calculated. The results showed that the distillate production rate, and consequently, the cost of distillate production were lower at smaller flow rates. In all the distillation production tests, the curve began at a relatively small slope and then continued to rise linearly. As a result, it was observed that distillate production would continue if the solar simulator operated for a longer time. Furthermore, the optimal initial feedwater flow rate for the maximization of distillation production seemed to occur at the flow rates of 0.086 and 0.098 lit/min. The lowest prime cost of distillate production was obtained to be 9.4 ¢/L at the lowest flow rates, which was found to be acceptable in comparison with similar studies.

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References

  1. Kaushal A (2010) Solar stills: a review. Renew Sustain Energy Rev 14(1):446–453

    Article  Google Scholar 

  2. Taghvaei H et al (2014) A thorough investigation of the effects of water depth on the performance of active solar stills. Desalination 347:77–85

    Article  Google Scholar 

  3. Jani HK, Modi KV (2018) A review on numerous means of enhancing heat transfer rate in solar-thermal based desalination devices. Renew Sustain Energy Rev 93:302–317

    Article  Google Scholar 

  4. Abu-Qudais M, Othman ON (1996) Experimental study and numerical simulation of a solar still using an external condenser. Energy 21(10):851–855

    Article  Google Scholar 

  5. Ahmed S (1988) Study of single-effect solar still with an internal condenser. Sol Wind Technol 5(6):637–643

    Article  Google Scholar 

  6. Fath HE (1996) High performance of a simple design, two effect solar distillation unit. Desalination 107(3):223–233

    Article  Google Scholar 

  7. Janarthanan B, Chandrasekaran J, Kumar S (2006) Performance of floating cum tilted-wick type solar still with the effect of water flowing over the glass cover. Desalination 190(1–3):51–62

    Article  Google Scholar 

  8. Kumar A, Anand J (1992) Modelling and performance of a tubular multiwick solar still. Energy 17(11):1067–1071

    Article  Google Scholar 

  9. Bhargva M, Yadav A (2019) Experimental comparative study on a solar still combined with evacuated tubes and a heat exchanger at different water depths. Int J Sustain Eng 13(3):218–29

    Article  Google Scholar 

  10. Patel J, Markam BK, Maiti S (2019) Potable water by solar thermal distillation in solar salt works and performance enhancement by integrating with evacuated tubes. Sol Energy 188:561–572

    Article  Google Scholar 

  11. Sharshir SW et al (2019) Augmentation of a pyramid solar still performance using evacuated tubes and nanofluid: experimental approach. Appl Therm Eng. https://doi.org/10.1016/j.applthermaleng.2019.113997

    Article  Google Scholar 

  12. Omara Z, Hamed MH, Kabeel A (2011) Performance of finned and corrugated absorbers solar stills under Egyptian conditions. Desalination 277(1–3):281–287

    Article  Google Scholar 

  13. Bhardwaj R, Ten Kortenaar M, Mudde R (2016) Inflatable plastic solar still with passive condenser for single family use. Desalination 398:151–156

    Article  Google Scholar 

  14. Alaian W, Elnegiry E, Hamed AM (2016) Experimental investigation on the performance of solar still augmented with pin-finned wick. Desalination 379:10–15

    Article  Google Scholar 

  15. Kumar RA, Esakkimuthu G, Murugavel KK (2016) Performance enhancement of a single basin single slope solar still using agitation effect and external condenser. Desalination 399:198–202

    Article  Google Scholar 

  16. Rahbar N, Esfahani JA, Asadi A (2016) An experimental investigation on productivity and performance of a new improved design portable asymmetrical solar still utilizing thermoelectric modules. Energy Convers Manage 118:55–62

    Article  Google Scholar 

  17. Gnanaraj SJP, Velmurugan V (2019) An experimental study on the efficacy of modifications in enhancing the performance of single basin double slope solar still. Desalination 467:12–28

    Article  Google Scholar 

  18. Dumka P et al (2019) Comparative analysis and experimental evaluation of single slope solar still augmented with permanent magnets and conventional solar still. Desalination 459:34–45

    Article  Google Scholar 

  19. Muthu Manokar A, Prince Winston D (2017) Comparative study of finned acrylic solar still and galvanised iron solar still. Mater Today: Proc 4(8):8323–8327

    Google Scholar 

  20. Sarhaddi F et al (2017) Comparative study of two weir type cascade solar stills with and without PCM storage using energy and exergy analysis. Energy Convers Manage 133:97–109

    Article  Google Scholar 

  21. Kumbhar SV (2019) Double slope solar still distillate output data set for conventional still and still with or without reflectors and PCM using high TDS water samples. Data in brief. https://doi.org/10.1016/j.dib.2019.103852

    Article  Google Scholar 

  22. Panchal H et al (2019) Economic and exergy investigation of triangular pyramid solar still integrated to inclined solar still with baffles. Int J Ambient Energy 40(6):571–576

    Article  Google Scholar 

  23. Montazeri M, Banakar A, Ghobadian B (2017) Enhancement of cascade solar still productivity with sloping absorber plate. Maejo Int J Sci Technol 11(1):35

    Google Scholar 

  24. Kabeel A, Abdelgaied M (2020) Enhancement of pyramid-shaped solar stills performance using a high thermal conductivity absorber plate and cooling the glass cover. Renew Energy 146:769–775

    Article  Google Scholar 

  25. Kabeel A, Abdelaziz GB, El-Said EM (2019) Experimental investigation of a solar still with composite material heat storage: energy, exergy and economic analysis. J Clean Prod 231:21–34

    Article  Google Scholar 

  26. Feilizadeh M et al (2019) Experimental investigation of an active thermosyphon solar still with enhanced condenser. Renew Energy 143:328–334

    Article  Google Scholar 

  27. Nasri B et al (2019) Improvement of glass solar still performance using locally available materials in the southern region of Algeria. Groundwater Sustain Dev. https://doi.org/10.1016/j.gsd.2019.100213

    Article  Google Scholar 

  28. Bilal A et al (2019) Investigating the effect of pumice stones sensible heat storage on the performance of a solar still. Groundwater Sustain Dev. https://doi.org/10.1016/j.gsd.2019.100228

    Article  Google Scholar 

  29. Ghafuoryan MM, Shakib SE, Dastjerd FT (2015) Modeling and optimizing of a combined CHP system, compression chiller and reverse osmosis plant (CHP+ C+ W) in two strategies of connections with grid. J Braz Soc Mech Sci Eng 37(6):1751–1763

    Article  Google Scholar 

  30. Oskoonejad MM (2007) Engineering Economy. Amirkabir University

    Google Scholar 

  31. Sanaye S, Ghafurian MM (2016) Applying relative equivalent uniform annual benefit for optimum selection of a gas engine combined cooling, heating and power system for residential buildings. Energy Build 128:809–818

    Article  Google Scholar 

  32. Sanaye S, Ghafurian MM, Dastjerd FT (2016) Applying relative net present or relative net future worth benefit and exergy efficiency for optimum selection of a natural gas engine based CCHP system for a hotel building. J Nat Gas Sci Eng 34:305–317

    Article  Google Scholar 

  33. Gorjian S et al (2014) Experimental performance evaluation of a stand-alone point-focus parabolic solar still. Desalination 352:1–17

    Article  Google Scholar 

  34. Dashtban M, Tabrizi FF (2011) Thermal analysis of a weir-type cascade solar still integrated with PCM storage. Desalination 279(1):415–422

    Article  Google Scholar 

  35. Kumar S, Tiwari GN (2009) Life cycle cost analysis of single slope hybrid (PV/T) active solar still. Appl Energy 86(10):1995–2004

    Article  Google Scholar 

  36. Ahmed MI, Hrairi M, Ismail AF (2009) On the characteristics of multistage evacuated solar distillation. Renew Energy 34(6):1471–1478

    Article  Google Scholar 

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Authors and Affiliations

  1. Mechanical Engineering Department, Shahrood University of Technology, Shahrood, Iran

    Reza Shahraki Shahdabadi & Pouria Lotfi

  2. Mechanical Engineering Department, Bozorgmehr University of Qaenat, Qaenat, Iran

    Ali Mortazavi & Seyyed Ehsan Shakib

Authors
  1. Reza Shahraki Shahdabadi
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  2. Ali Mortazavi
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  3. Pouria Lotfi
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  4. Seyyed Ehsan Shakib
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Correspondence to Seyyed Ehsan Shakib.

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Technical Editor: Monica Carvalho.

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Shahraki Shahdabadi, R., Mortazavi, A., Lotfi, P. et al. An experimental study of feedwater flow rate effects on technical and economic performances of a stepped solar still. J Braz. Soc. Mech. Sci. Eng. 43, 372 (2021). https://doi.org/10.1007/s40430-021-03091-5

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  • DOI: https://doi.org/10.1007/s40430-021-03091-5

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