The effect of sunny area ratios on the thermal performance of solar ponds

In this study, we investigated the effect of the sunny area ratios on thermal efficiency of model solar pond for different cases in Adiyaman, Turkey. For this purpose, we modeled the solar ponds to compute theoretical sunny area ratios of the zones and temperature distributions in order to find the performance of the model solar ponds. Incorporating the finite difference approach, one and two dimensional heat balances were written for inner zones and insulation side walls. Through, careful determination of the dimensions, insulation parameter and incoming solar radiation reaching the storage zone increased the efficiency of the solar pond. The efficiencies of the model solar pond were determined for case1a–2a–3a–4a to be maximum 14.93%, 20.42%, 23.51% and 27.84%, and for case1b–2b–3b–4b to be maximum 12.65%, 16.76%, 21.37% and 23.30% in August, respectively. With the increase of the sunny area ratio, the performance of the solar pond significantly increased. However, with the increasing rate of the surface area, performance increase rate decreased gradually. The results provide a strong perspective to determine the dimensions of the solar pond before starting the project of a solar pond.

[1]  Ibrahim Dincer,et al.  Exergetic performance analysis of a solar pond , 2008 .

[2]  Ibrahim Dincer,et al.  Experimental and theoretical temperature distributions in a solar pond , 2006 .

[3]  Ibrahim Dincer,et al.  Dynamic exergetic performance assessment of an integrated solar pond , 2013 .

[4]  Yuan Wang,et al.  Annual performance analysis of the solar chimney power plant in Sinkiang, China , 2014 .

[5]  Mohammad Reza Jaefarzadeh,et al.  Thermal behavior of a small salinity-gradient solar pond with wall shading effect , 2004 .

[6]  Mohammad Hassan Shojaeefard,et al.  Two-dimensional modeling of a salt-gradient solar pond with wall shading effect and thermo-physical properties dependent on temperature and concentration , 2011 .

[7]  Aliakbar Akbarzadeh,et al.  Theoretical study of a new thermodynamic power cycle for thermal water pumping application and its prospects when coupled to a solar pond , 2013 .

[8]  Ruzhu Wang,et al.  Experimental study on solar assisted heat pump system for heat supply , 2003 .

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

[10]  S. Samdarshi,et al.  Combined effect of bottom reflectivity and water turbidity on steady state thermal efficiency of salt gradient solar pond , 2004 .

[11]  I. Bozkurt,et al.  The daily performance of a solar pond integrated with solar collectors , 2012 .

[12]  Moh’d A. Al-Nimr,et al.  Using nanofluids in enhancing the performance of a novel two-layer solar pond , 2014 .

[13]  Ibrahim Dincer,et al.  Performance investigation of a solar pond , 2006 .

[14]  Saman Rashidi,et al.  Convection–radiation heat transfer in solar heat exchangers filled with a porous medium: Homotopy perturbation method versus numerical analysis , 2015 .

[15]  Ian Colbeck,et al.  A solar pond for London , 1977 .

[16]  Ibrahim Dincer,et al.  Performance assessment of a solar pond with and without shading effect , 2013 .

[17]  M.N.A. Hawlader.  The influence of the extinction coefficient on the effectiveness of solar ponds , 1980 .

[18]  Soteris A. Kalogirou,et al.  Different methods for modeling absorption heat transformer powered by solar pond , 2007 .

[19]  S. Samdarshi,et al.  Simple methods for estimation of radiation flux in solar ponds , 2004 .

[20]  I. Bozkurt,et al.  A new performance model to determine energy storage efficiencies of a solar pond , 2015 .

[21]  A. Bejan,et al.  Thermal Energy Storage: Systems and Applications , 2002 .

[22]  Aliakbar Akbarzadeh,et al.  Heat extraction from Non-Convective and Lower Convective Zones of the solar pond: A transient study , 2013 .

[23]  Rainer Feistel,et al.  New equations for density, entropy, heat capacity, and potential temperature of a saline thermal fluid , 2008 .

[24]  A. Dehghan,et al.  Experimental investigation of energy and exergy performance of square and circular solar ponds , 2013 .

[25]  Adnan Sözen,et al.  Solar potential in Turkey , 2005 .

[26]  S. Aboul-Enein,et al.  Thermal performance of a single-basin solar still integrated with a shallow solar pond , 2008 .

[27]  Milad Tajik Jamal-Abad,et al.  An experimental study on the effect of Cu-synthesized/EG nanofluid on the efficiency of flat-plate solar collectors , 2014 .

[28]  S. Aboul-Enein,et al.  History of the solar ponds: A review study , 2011 .

[29]  A. K. Binark,et al.  Experimental and numerical analysis of sodium-carbonate salt gradient solar-pond performance under simulated solar-radiation , 2006 .

[30]  Kamil Kaygusuz,et al.  Renewable energy potential and utilization in Turkey. , 2003 .

[31]  M. A. Hassab,et al.  Effects of edges on solar-energy collection in small solar ponds , 1991 .

[32]  Ahmed Al-Salaymeh,et al.  Experimental and numerical investigations of salt gradient solar pond under Jordanian climate conditions , 2013 .