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The range of the acceptance angles for the designed dielectric concentrator is 0 55°, having a concentration ratio (CR) of 2.8.
Our previous optical and thermal models predicted that 78% of incident solar flux could be concentrated to the flat receiver with a concentration ratio of 1.75.
A paraboloidal concentrator with a secondary optical system (with a concentration ratio in the range of 100 200×) and a sun tracking system was developed in this work.
This study is novel in that (a) the solar cells inside the vacuum tube act as spectrally selective mirrors for lower energy photons to maximize the system exergy, and (b) secondary concentrator allows the thermal component to reach a concentration ratio ∼60×, which is significantly higher than conventional PV/T concentration ratios.
The designed concentrator has acceptance half angles of 0° & 55° with a concentration ratio of 2.8.
The first is the adjustment of a concentration ratio, either of reactants or intermediate species, so as to amplify the yield of the desired product.
Similar(18)
The essential components of the system are a concentrator of high concentration ratio, a PV/T module and a tracking device.
In this paper, the design of a ray-leakage-free discal solar concentrator is proposed which provides a high concentration ratio while acquiring a high optical efficiency.
Through the combination of a parabolic primary concentrator with a nonimaging secondary concentrator, the collector reaches a solar concentration ratio of 97.5.
Thus, we present a prototype of a PTC with a 90° rim angle and a small concentration ratio of 9.25 built in fiberglass and extruded polystyrene, called UNIVPM.01.
Here, we investigate a middle-temperature solar-driven Kalina cycle that uses a parabolic trough collector with a variable concentration ratio.
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