PV cell electrical efficiency has an inverse relationship with its temperature. This study uses a novel and commercialized backsheet to reduce panel surface The consists of spikes dimples increase the air turbulence convection heat transfer rate. Experimentally validated computational fluid dynamic (CFD) models are developed investigate influence GripMetal on temperature panels PVT collectors. ...

in this research a flat plate solar air collector was investigated under direct solar radiation consisted of a slatted glass cover, perforated absorber aluminum sheets (porosity 0.0177, 0.0314 and absorber thickness of 2.5 mm). the effect of porosity on absorber efficiency of collector was evaluated. six levels of air mass flow rates (0.0056 to 0.0385 kg m-2 s-1) were adopted.average solar ener...

drying of agricultural products is a sophisticated process with high energy consumption. energy needed for sustainable development, is one of the biggest challenges facing humanity. the performance of a heat recovery assisted solar dryer was evaluated in this study. drying time, collector efficiency, energy consumption, solar fraction and energy recovery fraction were investigated at different ...

Investigating the thermal and electrical gains efficiencies influence designed photovoltaic hybrid collector (PVT) under different weather conditions. The system was manufactured by attaching a fabricated cooling made of serpentine tubes to single PV panel connecting it an automatic controlling for measuring, monitoring, simultaneously collecting required data. A removable glass cover had been ...

The design and development of a photovoltaic thermal (PVT) collector were developed in this study, electrical efficiency assessed. To improve system performance, two types coolants employed, liquid liquid-based MnO nanofluid. Flow rates ranging from 1 to 4 liters per minute (LPM) for the interval 1.0 LPM together with 0.1% concentration manganese oxide (MnO) Various parametric investigations, i...

The study investigated the thermal performance of a photovoltaic (PVT) collector with twisted absorber tube and nanoparticle-enhanced phase change material (nano-PCM). PVT consisted tubes, container filled nano-PCM, (PV) panel. To assess its efficiency, five different configurations were tested using an indoor solar simulator. analyzed as follows: (a) unenhanced PV panel, (b) circular tubes (C-...

Solar energy has been one of the accessible and affordable renewable technologies for last few decades. Photovoltaics solar thermal collectors are mature to harness energy. However, efficiency photovoltaics decays at increased operating temperatures, suffer from low exergy. Furthermore, along with several financial, structural, technical socio-cultural barriers, limited shadow-free space on bui...