A novel solar-based combined system which is consisting of a concentrated PV, a double effect LiBr-H2O absorption chiller, and a Proton Exchange Membrane (PEM) is proposed for hydrogen production. A portion of the received energy is recovered to run a double effect absorption chiller and the rest is turned into electricity, being consumed in the PEM electrolyzer for hydrogen producti...

Cryoballoon ablation has been demonstrated to allow safe and effective isolation of pulmonary veins (PV) for the treatment of paroxysmal atrial fibrillation. Recently, the second-generation cryoballoon device has been developed (Arctic Front Advance, Medtronic CryoCath LP) with improved cooling capabilities by increasing the number of refrigerant injectors, resulting in homogeneous cooling of t...

One of the significant obstacles for improving photovoltaic (PV) performance and lowering their surface temperature are cost, durability simplicity cooling systems. Regular aluminum fins have been added in various configurations to back a PV panel order reduce improve output power. The experimental set-up consists four panels. PV-1 was used as baseline, PV-2 utilized with longitudinal exposed n...

In this paper, the novel application of organic/inorganic perovskite hybrid materials isproposed for grid-connected Photo-voltaic (PV) cells. The perovskite hybrid cells attracted a lot of interest due to their potential in combining advantages of both components. Looking to the future, there is no doubt that these new generations of hybrid materials, born from the very fruitful activitie...

Solar Photovoltaic (PV) cells convert an average of 10 to 15% the incident solar radiation into electricity and remaining energy is wasted as unused heat energy. The p erformance PV largely dependent on its operating temperature, which again irradiation. efficiency reduces higher temperature due charge carrier recombination. drops considerably wit h increasing temperature. Dust deposition surfa...

Hybrid Photovoltaic Thermal (PVT) collectors are an emerging technology that combines PV and solar thermal systems in a single solar collector producing heat and electricity simultaneously. The focus of this thesis work is to evaluate the performance of unglazed open loop PVT air system integrated on a garage roof in Borlänge. As it is thought to have a significant potential for preheating vent...

Green roof and solar photovoltaic (PV) systems are two technologies that could contribute to sustainable building development and reduction of greenhouse gas emissions. When they are combined together on the building roof, it can enhance their functions and effectiveness by cooling and shading effects. This paper explains the major findings of a research to study the benefits of integrating gre...

Abstract—This study focuses on the cooling of a photovoltaic panel (PV). Indeed, the cooling improves the conversion capacity of this one and maintains, under extreme conditions of air temperature, the panel temperature at an appreciable level which avoids the altering. To do this, a fan provides forced circulation of air. Because the fan is supplied by the panel, it is necessary to determine t...

In this study, two different cooling systems for the thermal management of a photovoltaic (PV) module were developed. A PV/thermoelectric generator (TEG) and PV/TEG-mini-channel considered; in later system, water water-based Al2O3 nanofluids used channel. The effective PV was achieved by using higher-loading nanoparticles base fluid, while nanofluid exhibited non-Newtonian behavior. PV/TEG with...

Introduction Recently, pulmonary vein isolation (PVI) with cryoballoon (CB) has been widely accepted as treatment for atrial fibrillation (AF). Especially, second-generation CB (Arctic Front Advance, Medtronic, Inc, Minneapolis, MN) has a high cooling effect, which can achieve durable lesions of pulmonary vein (PV) antrum and better clinical outcomes. On the other hand, several complications, s...