There is a growing interest in using solar energy in underfloor heating systems. However, the large areas required for the installation of solar thermal collector's array can be discouraging, especially in the apartment buildings where the apartment's roof is a common area. The objective of this study is to investigate the possibility of using compound parabolic concentrating (CPC) solar collectors instead of the commonly used flat-plate collectors (FPCs) in such systems. It is aimed to explore the feasibility of area reduction required by the collectors. Second, the temperature profiles of circulating water loop and the concrete slabs are sought to be examined. The system consists of solar thermal collectors, a storage tank, and circulation of water to transport the heat to four similar floor slabs. The CPC collector outlet fluid's temperature can reach a maximum of 95 °C, compared to 70 °C obtained from the FPCs. The results from the simulations show that a 2 m2 CPC collector array can perform satisfactorily to match the job of an 8 m2 FPC array, obtaining the same required circulating water's temperature in the slabs.
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June 2015
Technical Briefs
Performance of Flat-Plate and Compound Parabolic Concentrating Solar Collectors in Underfloor Heating Systems
Sarvenaz Sobhansarbandi,
Sarvenaz Sobhansarbandi
1
Mem. ASME
Department of Mechanical Engineering,
e-mail: sobhan.sarvenaz@gmail.com
Department of Mechanical Engineering,
Eastern Mediterranean University
,Gazimagusa North Cyprus via Mersin 10
, Turkey
e-mail: sobhan.sarvenaz@gmail.com
1Corresponding author.
Search for other works by this author on:
Uğur Atikol
Uğur Atikol
Professor
Department of Mechanical Engineering,
e-mail: ugur.atikol@emu.edu.tr
Department of Mechanical Engineering,
Eastern Mediterranean University
,Gazimagusa North Cyprus via Mersin 10
, Turkey
e-mail: ugur.atikol@emu.edu.tr
Search for other works by this author on:
Sarvenaz Sobhansarbandi
Mem. ASME
Department of Mechanical Engineering,
e-mail: sobhan.sarvenaz@gmail.com
Department of Mechanical Engineering,
Eastern Mediterranean University
,Gazimagusa North Cyprus via Mersin 10
, Turkey
e-mail: sobhan.sarvenaz@gmail.com
Uğur Atikol
Professor
Department of Mechanical Engineering,
e-mail: ugur.atikol@emu.edu.tr
Department of Mechanical Engineering,
Eastern Mediterranean University
,Gazimagusa North Cyprus via Mersin 10
, Turkey
e-mail: ugur.atikol@emu.edu.tr
1Corresponding author.
Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGY AND BUILDING ENERGY CONSERVATION. Manuscript received May 14, 2014; final manuscript received November 17, 2014; published online December 23, 2014. Assoc. Editor: Werner Platzer.
J. Sol. Energy Eng. Jun 2015, 137(3): 034501 (5 pages)
Published Online: June 1, 2015
Article history
Received:
May 14, 2014
Revision Received:
November 17, 2014
Online:
December 23, 2014
Citation
Sobhansarbandi, S., and Atikol, U. (June 1, 2015). "Performance of Flat-Plate and Compound Parabolic Concentrating Solar Collectors in Underfloor Heating Systems." ASME. J. Sol. Energy Eng. June 2015; 137(3): 034501. https://doi.org/10.1115/1.4029229
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