Performance of solar air collector-thermoelectric hybrid system

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Ewe, W. E. and Fudholi, A. and Yen, C. H. and Asim, N. and Sopian, K. (2019) Performance of solar air collector-thermoelectric hybrid system. IOP Conference Series: Earth and Environmental Science, 268 (1). pp. 1-5. 012071. ISSN 1755-1315 (https://doi.org/10.1088/1755-1315/268/1/012071)

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Abstract

Solar collectors are technologies which using sunlight to collect heat energy. In this study, solar air collector-thermoelectric hybrid systemis designed and constructed. Performance testing is conducted in the lab. The size of this hybrid system is 97.5 × 59 × 12 cm. The manipulating factor is the mass flow rate which is fixed at 0.033, 0.0385, 0.044, 0.0495 and0.055 kg/s. The intensity of solar radiation is set at 700 W/m2. Maximum temperature change (To -Ti) reaches 7.5 °C while maximum temperature change (Tback - Thollow) reaches 16.7 °C. Maximum thermal efficiency of this hybrid system reaches 79.0% at the highest mass flow rate of 0.055 kg/s. The maximum electrical efficiency reaches 5.3% at the lowest mass flow rate of 0.033 kg/s. Maximum overall efficiency reaches 79% at the highest mass flow rate. The hybrid system has better thermal efficiency than a stand-alone solar air collector. Due to the increased overall efficiency, the proposed hybrid system is anticipated to promote wider application of thermoelectric hybrid system.

ORCID iDs

Ewe, W. E. ORCID logoORCID: https://orcid.org/0000-0002-0416-0963, Fudholi, A., Yen, C. H., Asim, N. and Sopian, K.;
CORE (COnnecting REpositories)