Potable water production using two solar stills having different cover materials and fabrication costs

Solar stills are very cost-effective technologies used in producing potable water. This work aims to investigate the productivity of two passive double sloped solar stills fabricated with different cover materials with similar shapes; polythene film (PSS) and glass (GSS). The first solar still was made of a transparent polythene film, PVC pipes and a black painted stainless steel trough as cover, frame and basin, respectively. The second one was fabricated using glass as cover, with similar basin material. Experimental outputs indicated that GSS had 1%–5% higher yield than PSS throughout the experiment. The fabrication cost of PSS was 5 times less than the cost of the GSS. The thermal energy efficiencies of PSS and GSS were obtained as 34.05% and 35.50%, respectively. A mathematical model for each solar still was developed using the relationships of heat and mass transfer and their calculated and experimental productivities were in good agreement. Water quality parameters tested showed that water produced from both solar stills met the WHO standards for drinking purposes. © 2017 American Institute of Chemical Engineers Environ Prog, 2017

[1]  Omar Badran,et al.  THE EFFECT OF USING DIFFERENT DESIGNS OF SOLAR STILLS ON WATER DISTILLATION , 2004 .

[2]  D. Inan,et al.  A solar still with minimum inclination, coupled to an outside condenser , 1999 .

[3]  Khamaruzaman Wan Yusof,et al.  Sustainable potable water production using a solar still with photovoltaic modules-AC heater , 2016 .

[4]  Siaka Toure,et al.  A numerical model and experimental investigation for a solar still in climatic conditions in Abidjan (Côte d'Ivoire) , 1997 .

[5]  Ahmed Z. Al-Garni,et al.  Productivity Enhancement of Solar Still Using Water Heater and Cooling Fan , 2012 .

[6]  Khamaruzaman Wan Yusof,et al.  Potable water production by using triangular solar distillation systems in Malaysia , 2013, 2013 IEEE Conference on Clean Energy and Technology (CEAT).

[7]  K. Srithar,et al.  SINGLE BASIN SOLAR STILL WITH FIN FOR ENHANCING PRODUCTIVITY , 2008 .

[8]  G. N. Tiwari,et al.  Comparison of various designs of solar stills , 1986 .

[9]  Abdallah Shanableh,et al.  Life cycle cost analysis of a sustainable solar water distillation technique , 2013 .

[10]  Amimul Ahsan,et al.  Design, fabrication and performance analysis of an improved solar still , 2012 .

[11]  Hossein Assefi,et al.  Simulation of a solar still to investigate water depth and glass angle , 2009 .

[12]  A. E. Kabeel,et al.  Theoretical and experimental parametric study of modified stepped solar still , 2012 .

[13]  A. Al-Ibrahim,et al.  Seawater desalination: the strategic choice for Saudi Arabia , 2013 .

[14]  G. N. Tiwari,et al.  Experimental validation of thermal model of a double slope active solar still under natural circulation mode , 2010 .

[15]  G. N. Tiwari,et al.  Monthly comparative performance of solar stills of various designs , 1987 .

[16]  Khamaruzaman Wan Yusof,et al.  The performance investigation of triangular solar stills having different heat storage materials , 2015 .

[17]  M. K. Phadatare,et al.  Influence of water depth on internal heat and mass transfer in a plastic solar still , 2007 .

[18]  Experimental study of evaporation in distillation , 1998 .

[19]  A. A. El-Sebaii,et al.  Effect of wind speed on active and passive solar stills , 2004 .

[20]  R. N. Morse,et al.  A rational basis for the engineering development of a solar still , 1968 .

[21]  G. Tiwari.  Feasibility study of solar distillation plants in south pacific countries , 1991 .

[22]  I. Dincer,et al.  An Investigation of the Effect of Transparent Covers on the Performance of Cylindrical Solar Ponds , 2014 .

[23]  Mousa K. Abu-Arabi,et al.  MODELLING AND PERFORMANCE ANALYSIS OF A REGENERATIVE SOLAR DESALINATION UNIT , 2004 .

[24]  Shigeki Toyama,et al.  SIMULATION OF A MULTIEFFECT SOLAR STILL AND THE STATIC CHARACTERISTICS , 1987 .

[25]  Bilal Akash,et al.  Experimental study of the basin type solar still under local climate conditions , 2000 .

[26]  Arun Kansal,et al.  Application of solar energy for water supply and sanitation in Arsenic affected rural areas: a study for Kaudikasa village, India , 2012 .

[27]  G. N. Tiwari,et al.  Parametric study of an active and passive solar distillation system: Energy and exergy analysis , 2009 .

[28]  G. H. Brusewitz,et al.  Direct use of solar energy for water desalination , 1979 .

[29]  Amimul Ahsan,et al.  Parameters affecting the performance of a low cost solar still , 2014 .

[30]  supKhamaruzaman Wan Yusof,et al.  Solar Stills Productivity with Different Arrangements of PV-DC Heater and Sand Layer in Still Basin: A Comparative Investigation , 2014 .

[31]  G. Cappelletti,et al.  An experiment with a plastic solar still , 2002 .

[32]  Kirby J. Hanson.  The Radiative Effectiveness of Plastic Films for Greenhouses , 1963 .

[33]  N. Sapari,et al.  The Performance of Trapezoidal Glass Cover Solar still during Monsoon Period of Tropical Environment , 2014 .