Adel A. Hegazy

TL;DR: In this article, an extensive investigation of the thermal, electrical, hydraulic and overall performances of flat plate photovoltaic/thermal (PV/T) air collectors has been made.

TL;DR: In this paper, the authors investigated the effect of dust accumulation on glass plates with different tilt angles and associated reduction in solar transmittance in the Minia region, middle of Egypt.

TL;DR: In this article, the applicability of the analytical criterion developed for estimating optimum channel geometry of conventional solar air heaters (SAHs) to other flat plate types was extended. But the authors did not consider the effect of air mass flow rate, emissivity of channel plates and wind heat transfer coefficient.

TL;DR: In this article, the effect of shape on collector thermohydraulic performance has been examined for three common models with air flowing over the flat absorber, or under it, and on both sides of the absorber.

TL;DR: In this paper, a simple criterion for determining the channel optimum depth-to-length ratio (D/L ) opt which effectively maximizes the useful energy from collectors that are designed to heat a fixed mass rate of air flow is presented.