Relative to solar water heaters, solar air heaters have received relatively little investigation and have resulted in few commercial products. However, in the context of a humidification-dehumidification (HDH) desalination cycle, air heating accounts for advantages in cycle performance. Solar collectors can be over 40% of an air-heated HDH system’s cost; thus, design optimization is crucial. Be...

Although the increment performance of photovoltaic thermal (PVT) systems by using nanofluids as working fluids have gained attention researchers during last two decades, there is still, a lack in literature study associated to this application. This contributes investigations and researches applying increase PVT collectors. A flat non-concentrating collector has been designed, constructed and, ...

Innovative concentrating PVT solar collector concepts based on a CPC geometry concept were developed to outperform the asymmetric Solarus CPVT and therefore decrease energy/performance gap between PV/ST collectors. The updated reflector proved be most suitable for CPVTs, where electrical peak efficiency per gross area reached 10.6%, which is +16.5%rel higher than of CPVT. Optical efficiencies ?...

In situ photovoltaic-thermal (PVT) solar energy generation in buildings is an effective way to cover both thermal and electrical demands, mimizing losses costs associated with transportation. High-concentration PVT (HCPVT) collectors present higher conversion efficiencies, lower dependence coefficients the possibility of achieving temperature heat than conventional systems. These features addre...

This paper proposes a dynamic model of solar-based micro-cogeneration system called photovoltaic-thermal (PVT) collector to perform design optimization the multi-stage PVT system. The parametric study reveals most important parameters influencing water-based flat-plate performance. analysis also shows an existing trade-off between thermal and electrical efficiencies during operation. A novel ex...

The thermal performance of a single pass solar air heater with five fins attached was investigated experimentally. Longitudinal fins were used inferior the absorber plate to increase the heat exchange and render the flow fluid in the channel uniform. The effect of mass flow rate of air on the outlet temperature, the heat transfer in the thickness of the solar collector, and the thermal efficien...

Simulated performance of packed bed solar energy storage system is reported in the present paper in continuation with Part-I and Part-II of this paper. The present part of the paper deals with system performance w.r.t. energy consumption by fan to propel air through the bed and thermal efficiency of solar collector. It is observed that energy consumption by fan and thermal efficiency of the col...

In this paper, an attempt has been made to obtain nonsensitive solutions in the multi-objective optimization of a photovoltaic/thermal (PV/T) air collector. The selected objective functions are overall energy efficiency and exergy efficiency. Improved thermal, electrical and exergy models are used to calculate the thermal and electrical parameters, overall energy efficiency, exergy components a...