Combined Sensible and Latent Heat Energy Storage Systems for a New Solar Tunnel Dryer—An Experimental Study

In this present study, two similar solar tunnel dryers with different sensible and latent heat energy storage configurations were designed, realized and experimentally investigated. In this view, the performance of natural convection solar tunnel dryer has been investigated. Meanwhile, the performan...

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Bibliographic Details
Published in:Applied solar energy 2023-02, Vol.59 (1), p.14-25
Main Authors: Benseddik, A., Boubekri, A., Bensaha, H., Lalmi, D., Ben Djelloul, W., Rehaiem, A., Djilali, A. Benahmed
Format: Article
Language:English
Subjects:
Climatic conditions
Configurations
Convection
Driers
Electrical Machines and Networks
Energy storage
Engineering
Free convection
Heat
Latent heat
Paraffin
Paraffin wax
Power Electronics
Renewable energy
Solar energy
Solar Installations and Their Application
Storage systems
Temperature distribution
Thermal energy
Tunnel driers
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Summary:In this present study, two similar solar tunnel dryers with different sensible and latent heat energy storage configurations were designed, realized and experimentally investigated. In this view, the performance of natural convection solar tunnel dryer has been investigated. Meanwhile, the performance of a natural convection solar tunnel dryer equipped with a heat energy storage configuration (HESC) has been compared experimentally to a similar solar tunnel dryer with another HESC. Accordingly, four thermal energy storage configurations (TESC) have been studied to determine the best configuration and its corresponding thermal performance. The experimental tests were carried out on the Demo-site implemented at the Applied Research Unit for Renewable Energies (URAER) in Ghardaia city, Algeria. The local real climatic condition (semi-arid) is considered as the operating environment of the new solar tunnel dryer, while the recorded results based on temperature distribution on the different parts of the solar tunnel dryer were applied to the system thermal performance analysis. The obtained results confirmed that the natural convection solar tunnel dryer with the third storage configuration, where a bed of cans filled with paraffin wax is placed, fit a better thermal performance than others. Moreover, at the day end, a difference temperature between storage mediums of two similar solar tunnel dryer averred an increase of 6°C for the first configuration, 10°C for the second configuration, 17°C for the fourth configuration and 26°C for the third configuration.
ISSN:0003-701X
1934-9424
DOI:10.3103/S0003701X21101229