Overview of Bifluid-based Photovoltaic Thermal (PVT) Systems

Abstract

<p>This review presents various research and development, as well as design and performances of bifluid-based PVT systems. Moreover, the development of PVT system is a very promising area of research. PVT systems using in various applications, such as solar drying, solar cooling, water heating, desalination, and pool heating. With the recognition of the potentials and contributions of PV system, considerable research has been conducted to attain the most advancement which may produce reliable and sustainable PVT system. The cooling system’s design refers to the absorber design which mostly focuses on water and air-based PVT systems. An air-based system has been developed through different absorber configurations, air flow modes and single- or double-pass design. Bifluid-based PVT system is used to remove heat accumulated in a PV panel and reuses the waste heat (hot air and water) in an appropriate way. PV, thermal and PVT efficiencies of bifluid PVT systems were 6.6%-18.6%, 31%–90% and 60%-83%, respectively. </p>

Bi-fluid cooling effect on electrical characteristics of flexible photovoltaic panel

“…For each varied parameter of air mass flow rate with constant water mass flow, the experiment was repeated three times. Moreover, the maximum power generated was calculated using equation (2). The electrical efficiencies of PV with bi-fluid cooling system were compared to find the optimum bi-fluid parameter that generated maximum electrical energy.…”

Cogeneration of energy in solar systems - a study case, Kosovo

“…Self-consumption is the cheapest way to generate energy with renewables and reduce the stress on the local grid at the same time. PV-T systems can be integrated with heat pumps or cooling systems and the electricity generated in excess could be stored [14]. Agency (IEA) Task indicates a potential cost reduction of roughly 10% for PV-T installations compared to the combination of separate systems with market development.…”