Muhammad  Zohri, Ahmad  Fudholi, Mohd Hafidz  Ruslan, Kamaruzzaman  Sopian, 
    Performance Analysis of Photovoltaic Thermal (PVT) with and Without
∇-Groove Collector,
    Journal of Engineering and Applied Sciences,
    Volume 12,Issue 22,
    2017,
    Pages 6029-6032,
    ISSN 1816-949x,
    jeasci.2017.6029.6032,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2017.6029.6032)
    Abstract: In this study, experimental of PVT based air collector system has been conducted. It can produce
electricity and heat at the same time. Fans are used to cool the PV panel and the ∇-groove used to improve the
efficiency of the cooling process. During the study carried out on PVT air collectors without ∇-groove, air mass
flow rate varied in ranges of 0.0069-0.0491 kg/sec and the radiation intensity halogen lamp at two different
intensities of with an average of 820 and 522 W/m<sup>2</sup>. The average PVT efficiency without collector is 59.07% in
solar radiation 522 W/m<sup>2</sup> and the average PVT efficiency with collector is 66.49 W/m<sup>2</sup>. It shows that &nabla;-groove
collector used to improve the efficiency of PVT system.
    Keywords: Mathematical model;thermal;electrical;second law efficiency;collector;solar radiation