AN INVESTIGATION OF THE EFFECT OF TRANSPARENT COVERS ON THE PERFORMANCE OF CYLINDRICAL SOLAR PONDS


Bozkurt I., Atiz A., KARAKILÇIK M. , Dincer I.

INTERNATIONAL JOURNAL OF GREEN ENERGY, cilt.11, ss.404-416, 2014 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 11 Konu: 4
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1080/15435075.2013.773900
  • Dergi Adı: INTERNATIONAL JOURNAL OF GREEN ENERGY
  • Sayfa Sayısı: ss.404-416

Özet

The effect of the transparent covers (glass, polycarbonate, and mica) on the small cylindrical solar pond performance is studied. The temperature and density distributions are measured to evaluate the performance of the covered cylindrical solar pond. The pond covers provide a significant potential for energy savings and storage by insulating upper convective zone. Thus, such transparent covers are used for reducing the thermal energy losses from the top surface of the cylindrical solar pond. The transmission, reflection, and absorption coefficients of the covers are calculated to determine the monthly solar energy contents of the solar pond. The energy efficiencies of the solar pond are found for each type of covers from November 2008 to March 2009. As a result, the highest efficiency is determined to be 17.86% for glass cover in March, while the efficiencies of polycarbonate and mica become 16.95% and 15.86%, respectively. In this regard, the glass cover appears to be the best option for the solar ponds.