An experimental implementation and testing of a concentrated hybrid photovoltaic/thermal system with monocrystalline solar cells using linear Fresnel reflected mirrors

Abstract

Summary Integration of solar concentrators with photovoltaic (PV) systems reduces the required number of PV panels, which often account for the major costs of PV systems. The linear Fresnel reflector mirror is considered more effective because of its simplicity and effortless fabrication. An experimental test rig of a concentrated PV/thermal system that employs a linear configuration and horizontal absorber was built for evaluating its electrical and thermal performances. The considered concentrator consists of various widths of flat glass mirrors, which positioned with different angles, and with sun light focusing on the PV cells that fixed over an active cooling system. The experimental investigation of the proposed concentrated PV/thermal system shows that higher electrical and thermal efficiencies can be achieved at comparatively high temperature levels than that typically utilized in a nonconcentrated PV/thermal system. The characteristics of PV cells also indicate that the electrical efficiency values in case of no concentration and with concentration ratio of 6.0 are 9.6%, and 11%, respectively. The measured values for the inlet and outlet cooling water temperatures of the receiver showed that the maximum outlet temperature reached was 75°C with a flow rate of 0.025 L/min, and the product thermal efficiency was 62.3%. These obtained results illustrate an adequate and good thermal and electrical performance under the meteorological weather conditions of the province of Al‐Karak in Jordan.

Investigating the Effect of Temperature on the Performance of Photovoltaic Cell

“…Io: 0.013 nA [Manufacturer Data] and, the value is realistic compared with another research results [18]. q: 1.602*10 -19 C [19,20]. K: 1.38*10 -23 JK -1 [19,20].…”

Integration of supercapacitor with solar cell based on NiO 2 and CdS nanopillars embedded in porous anodic alumina templates

“…Thus, the absence of light will not affect the power supply. A recently developed method to enable both the EES devices and PVSC to function as two mutually independent units connected by wires makes it possible to produce and store energy simultaneously 7 …”

“…Several review papers on various PVSC, 12‐29 EES devices, 29‐48 and integrated systems 1‐12 have been published recently. As much as 90% of the worldwide PV market is currently dominated by the first‐generation Si‐based PVSCs, which have a high power conversion efficiency (PCE) as high as 27%, 12,21 as well as good stability and fixed industrial production standards.…”

“…A recently developed method to enable both the EES devices and PVSC to function as two mutually independent units connected by wires makes it possible to produce and store energy simultaneously. 7 Nonetheless, this method has some drawbacks, such as being complicated, not handy, inflexible, and energy inefficient due to loss of energy at external wires to connect the EES and PVSC. The integration of these two devices into one allows it to escape the abovementioned disadvantages by achieving compactness as well as saving on energy loss due to a decrease in the required number of wires to connect the 2 units.…”

A Carbon-Cloth Anode Electroplated with Iron Nanostructure for Microbial Fuel Cell Operated with Real Wastewater

“…Current energy relies on fossil fuels, which not only are limited in resources, but also result in high quantities of pollution and health risks [1][2][3]. The environmental impact of fossil fuels can be minimized through increasing the efficiency of current technologies [4,5] and/or relying on renewable energy sources [6], such as biomass energy [7][8][9], wind energy [10,11], solar thermal energy [12,13], solar PV [14][15][16], ocean energy [17], and geothermal energy [9]. Fuel cells are emerging energy conversion devices that are silent, have a high theoretical efficiency [18][19][20], and exhibited high performance when installed in several applications [21,22].…”