Thermal and economic comparisons of solar heating systems with seasonal storage used in building heating

In this study, the thermal performances and economic savings of the three types of central solar heating system with seasonal storage are compared. Three types of seasonal storage were simulated: storage tank without insulation on ground, storage tank with insulation on ground, and underground stora...

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Bibliographic Details
Published in:Renewable energy 2008-12, Vol.33 (12), p.2532-2539
Main Authors: Ucar, Aynur, Inalli, Mustafa
Format: Article
Language:English
Subjects:
Applied sciences
Building heating
Economic data
Energy
Energy economics
Equipments, installations and applications
Exact sciences and technology
General, economic and professional studies
Natural energy
Seasonal storage
Solar energy
Solar thermal conversion
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Summary:In this study, the thermal performances and economic savings of the three types of central solar heating system with seasonal storage are compared. Three types of seasonal storage were simulated: storage tank without insulation on ground, storage tank with insulation on ground, and underground storage tank without insulation. The long-term temperatures of water in the storage tank are calculated by finite element code ANSYS™. The simulation results showed that the higher solar fraction and savings are obtained for system with storage buried into ground. Furthermore, the solar fraction of the storage tank system with insulation is significantly higher than that of without insulation storage system. Also, the solar fraction and savings of system with the evacuated tube collector are higher compared to other black paint flat plate collector.
ISSN:0960-1481
1879-0682
DOI:10.1016/j.renene.2008.02.019