2012
DOI: 10.1155/2012/863654
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Simple Methods to Approximate CPC Shape to Preserve Collection Efficiency

Abstract: The compound parabolic concentrator (CPC) is the most efficient reflective geometry to collect light to an exit port. Anyway, to allow its actual use in solar plants or photovoltaic concentration systems, a tradeoff between system efficiency and cost reduction, the two key issues for sunlight exploitation, must be found. In this work, we analyze various methods to model an approximated CPC aimed to be simpler and more cost-effective than the ideal one, as well as to preserve the system efficiency. The manufact… Show more

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Cited by 7 publications
(6 citation statements)
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References 22 publications
(22 reference statements)
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“…In concentrating systems, a trade-off between system efficiency and cost reduction must be found (Jafrancesco et al 2012), which always involves truncation of the reflector before reaching the maximum theoretical concentration. Concentrators consist mainly of two groups when considering the concentrator surface: 2D and 3D collectors.…”
Section: Pure Parabola (Pp)mentioning
confidence: 99%
“…In concentrating systems, a trade-off between system efficiency and cost reduction must be found (Jafrancesco et al 2012), which always involves truncation of the reflector before reaching the maximum theoretical concentration. Concentrators consist mainly of two groups when considering the concentrator surface: 2D and 3D collectors.…”
Section: Pure Parabola (Pp)mentioning
confidence: 99%
“…Substituting the experimental data into (5) gives the daily average efficiency of 51.3% for the 23rd of January and 50.1% for the 25th of January, respectively. The small difference in the efficiencies for these two days may be due to the difference in the average operating temperatures.…”
Section: Efficiency Testingmentioning
confidence: 99%
“…According to (5), the daily average thermal efficiency of the prototype solar collector hot water system on the 22nd of January may be calculated as follows:…”
Section: Testing Of Hot Water Displacement At a Controlled Temperaturementioning
confidence: 99%
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“…The focus of the study was to investigate the location of the hot spots on the absorber. Jafrancesco et al (2012) analyzed various methods to model an approximated CPC with an aim to identify simple and cost-effective methods. In addition to ray tracing modeling, computational fluid dynamics (CFD) was also successfully implemented by researchers in the design optimization of CPCs.…”
Section: Introductionmentioning
confidence: 99%