Use of compound parabolic concentrator for solar energy collection

Rabi, Abdul Munir Fikri Mat; Sevcik, V.; Giugler, R. M; Winston, R.

doi:10.2172/7358243

Cited by 4 publications

(3 citation statements)

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“…The design process of an ideal CPC starts with specifying the values of acceptance half angle and width of the flat receiver. The resulting width of the entry aperture and total height of CPC are then calculated using the equations derived by Winston and his fellow researchers [57,58]. Afterward, the set of coordinates for one of the parabolic reflectors in the Cartesian coordinate system is determined [59].…”

Section: Basic Construction and Classification Of Cpcsmentioning

confidence: 99%

A Review of Recent Developments and Applications of Compound Parabolic Concentrator-Based Hybrid Solar Photovoltaic/Thermal Collectors

et al. 2022

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The concentrating photovoltaic/thermal (PVT) collectors offer the benefits of the reduced per-unit price of electrical energy and co-generation of electrical and thermal energies by intensifying the solar irradiation falling on the hybrid receiving plane. The compound parabolic concentrating (CPC) collectors have appeared as a promising candidate for numerous applications in the field of solar energy due to their ability to collect both direct and diffuse solar radiation and suitability for stationary installation. Over the last few decades, various configurations of CPC collectors have been proposed and investigated by different researchers for the simultaneous generation of electrical and thermal energies. This article presents a comprehensive review of historical and recent developments and applications of CPC-based hybrid PVT systems. The review focuses on the heat extraction mechanisms and commonly used application areas of CPC-PVT systems. The innovative design configurations proposed by different researchers have been reviewed in detail. The outputs of CPC-PVT systems are generally found to be superior to their counterparts without CPCs, which justifies their increased popularity. Due to dual outputs, the hybrid CPC-PVT systems are considered to be suitable for rooftop and building façade integrated applications. Finally, future recommendations have been enlisted, highlighting the potential research opportunities and challenges for the prospective researchers working in the field of concentrating solar PVT systems.

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Section: Basic Construction and Classification Of Cpcsmentioning

confidence: 99%

A Review of Recent Developments and Applications of Compound Parabolic Concentrator-Based Hybrid Solar Photovoltaic/Thermal Collectors

et al. 2022

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“…Moreover, heat travels at light speed, and its flux is positively correlated with the fourth power of absolute temperature. These characteristics have facilitated applications using thermal radiation in energy harvesting, temperature sensing, heating objects, and others [2][3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Designing a Thermal Radiation Oven for Smart Phone Panels

Yang

Wu³

et al. 2018

Inventions

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Thermal radiation is the only heat transfer mechanism with vacuum compatibility, and it carries energy at light speed. These advantages are taken in this work to design an oven for smart phone panels. The temperature of panels is acquired from a numerical method based on finite-difference method. The space configuration of the heating lamps as well as the relative distance between lamps and the panel are control factors for optimization. Full-factorial experiments are employed to identify the main effects from each factor. A fitness function Q considering both temperature uniformity of the panel and the heating capability of the ovens is proposed. The best oven among 27 candidates is able to raise panel temperature significantly with high uniformity.

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“…The energy flux of typical uv-lamps is on the order of to lo-' of the peak solar flux, which is 1 kW/m2 (Bockris, 1975). Focussing systems can alter these values appreciably; e.g., nontracking solar concentrators can increase solar intensities by afactor of 10 (Rabl et al, 1974). The dimensionless temperature rise is in the light-limited regime over most of the intensity range shown.…”

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confidence: 99%

Photo‐assisted heterogeneous catalysis with optical fibers II. Nonisothermal single fiber and fiber bundle

Marinangeli

Ollis

1980

AIChE Journal

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Subscripts i = iih curve 0 = reference drop volume n = nth moment n r ume r = reference curve = nfh moment with respect to the reference drop vol-Superscripts -= modified similarity variable LITERATURE CITED Acrivos, A , , andT. S . Lo, "Deformation and Breakup of a Single Slender Drop in an Extensional Flow,"J. Fluid Mech., 86, 641 (1978).A previous paper (Marinangeli and Ollis, 1977) considered light transport in a single optical fiber which was coated with a heterogeneous photoassisted catalyst. This paper analyzes simultaneous mass, heat, and light transport in a catalyst on a single fiber, and in a likely large-scale configuration, a bundle of parallel, catalyst-coated optical fibers. The dimensionless temperature rise is dominated by energy released by light absorption, with the heat of reaction contributing to a lesser degree.Since R, >> d,,, the bundle Thiele modulus, N , will be correspondingly larger than the single-fiber Thiele modulus, M . Except for large values of N , the value of M is sufficiently small that vr equals its asymptotic value of 1/2y, for thick layers, or 1 for yc +O. The ratio of N to M is:It is interesting to compare the single-fiber effectiveness factor obtained here for an exponentially varying reaction rate to

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Use of compound parabolic concentrator for solar energy collection

Abstract: Maximum divergence (half-angle) of a light beam; also, the angular acceptance (half-angle) of a collector.

Cited by 4 publications

References 1 publication

A Review of Recent Developments and Applications of Compound Parabolic Concentrator-Based Hybrid Solar Photovoltaic/Thermal Collectors

A Review of Recent Developments and Applications of Compound Parabolic Concentrator-Based Hybrid Solar Photovoltaic/Thermal Collectors

Designing a Thermal Radiation Oven for Smart Phone Panels

Photo‐assisted heterogeneous catalysis with optical fibers II. Nonisothermal single fiber and fiber bundle

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