Key factors impacting performance of a salinity gradient solar pond exposed to Mediterranean climate

Mehdi Torkmahalleh, Mohammad Askari, Soudabeh Gorjinezhad, Dilem Eroğlu, Madina Obaidullah, Abdullrahman Rajab Habib, Sevgi Godelek, Sultan Kadyrov, Orhun Kahraman, Negar Zare Pakzad, Goodarz Ahmadi

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Solar ponds are low cost pools of brine solutions with integrated storage zones that harvest incident solar energy and store it as thermal energy. The current study examined the performance of a salinity gradient solar pond under the Mediterranean climatic condition for ten consecutive months of operation, from October 8, 2014 to July 31, 2015. The presented results are based on the experimental data of a small-scale circular pond, 61 cm in diameter a height of 55 cm, constructed and operated at Middle East Technical University, Northern Cyprus Campus (METUNCC). The study showed the necessity of regular surface washing and having excess undissolved salt at the lower convective zone (LCZ) to maintain the pond stability. The variations in the temperature of the non-convective (NCZ) and lower convective zones (LCZ) are found to be a function of both ambient temperature and solar irradiation (insolation). The variation of the overall pond's temperature strongly follows the changes in ambient temperature while solar insolation directly affects the increase in temperature gradient by depth. During the period of this study, the pond reached the highest average temperature of 48 °C in July 2015 while the average ambient temperature for this month was 30 °C.

Original languageEnglish
Pages (from-to)321-329
Number of pages9
JournalSolar Energy
Publication statusPublished - Jan 15 2017


  • LCZ
  • Mediterranean climate
  • NCZ
  • Salinity
  • Solar pond
  • UCZ

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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