...Matteo Timpano; Thomas A. Cooper This paper presents a detailed analysis of the optical performance of circular trough concentrators with tubular receivers. First, a simple analytical formula for the achievable geometric concentration ratio as a function of the rim angle and acceptance angle...

..., kWh/m 2 NSRDB station ID Daggett, California 34.9, −116.8 2799 91486 (via SAM) Des Moines, Iowa 41.6, −93.6 1591 757516 (via SAM) North-central Mexico 23.3, −102.5 2789 549592 Northern Chile −21.0, −69.2 3387 1399660 Table 2 Calculation of SAM optical efficiency...

... . 08 10 2022 14 11 2022 14 11 2022 26 12 2022 parabolic trough solar collector secondary reflector V-shape rib parametric study heat transfer fluids turbulators thermal enhancement absorber collector efficiency energy fluid flow heat transfer optics parabolic...

.... , Silva Pérez , M. , and Doblaré Castellano , M. , 2016 , “ Optical Analysis of a Two Stage XX Concentrator for Parametric Trough Primary and Tubular Absorber With Application in Solar Thermal Energy Trough Power Plants ,” ASME J. Sol. Energy. Eng. , 138 ( 4 ), p. 041002 . 10.1115/1.4032944...

.... , and Schatz , G. C. , 2003 , “ The Optical Properties of Metal Nanoparticles: The Influence of Size, Shape, and Dielectric Environment ,” J. Phys. Chem. B , 107 ( 3 ), pp. 668 – 677 . 10.1021/jp026731y [7] Nehl , C. L. , and Hafner , J. H. , 2008 , “ Shape-Dependent Plasmon Resonances...

...: c.vistas@fct.unl.pt Contributed by the Solar Energy Division of ASME for publication in the J ournal of S olar E nergy E ngineering : I ncluding W ind E nergy and B uilding E nergy C onservation . 01 10 2021 19 05 2022 19 05 2022 13 06 2022 energy optics...

... 02 2022 02 03 2022 22 03 2022 absorber collector optics solar receiver solar thermal power The main advantage of concentrating solar thermal (CST) power plants over many other forms of renewable energy is that collected energy can be stored quite cheaply and very...

...William T. Hamilton; Michael J. Wagner; Alexander J. Zolan solarpilot is a software package that generates solar field layouts and characterizes the optical performance of concentrating solar power (CSP) tower systems. solarpilot was developed by the National Renewable Energy Laboratory (NREL...

... Tracking Mode ,” ASME J. Sol. Energy Eng. , 131 ( 3 ), p. 34501 . 10.1115/1.3142829 [11] Chong , K. K. , and Tan , M. H. , 2012 , “ Comparison Study of Two Different Sun-Tracking Methods in Optical Efficiency of Heliostat Field ,” Int. J. Photoenergy , 2012 , pp. 1 – 10 . 10.1155...

...Muhammad Uzair; Naveed ur Rehman; Muhammad Asif This study developed a methodology for determining the intercept factor (γ) and reports the effects of varying the design parameters, within realistic ranges, on the optical performance of parabolic trough collectors (PTC). The design equations...

... and radii of facets are constrained so that the ray refracted from the bottom vertex of each facet on one side of the optical axis and the ray refracted from the outer vertex of the corresponding facet on the other side of the optical axis must intersect at the focal plane. The proposed lens design has...

... 2021 collector efficiency optics simulation solar The production of a narrow-band coherent laser radiation from a broad-band solar radiation is of great importance due to its design simplicity and the complete elimination of electrical power generation and conditioning equipment...

... t a w l + 2 t i n s The optical efficiency of the PTC is defined as the ratio of the power absorbed by the evaporator to the solar power impinging on the aperture area of the collector. (24) η o p = α g e ρ m γ k a m where the transmittance...

...Saboor Shaik; Manvendra Bhardwaj; Somya Agarwal; Raja Sekhar Yendaluru; Md. Hasanuzzaman; K. V. Sharma The energy gain of domestic solar water heating systems is determined by solar to thermal energy conversion and glazing optical efficiency. For this study, solar transmission properties...

... for further future optimizations. Several CuO-based heterojunctions have been studied, such as CuO/SnO [ 6 ], CuO/Cu 2 O [ 7 ] and CuO/C 60 [ 8 , 9 ], heterostructures. The obtained efficiency depends not only on the electrical and optical properties of CuO but also on those of the n -type semiconductor...

... angles optimization local weather statistics yearly available maximum energy optics photovoltaics renewable solar The increasing need for the development of effective renewable energy harvest technology and precise prediction of the quantity of energy has become very important...

... toward the tube and largely contains the reflected radiation and thermal emission, thus acting both as a secondary reflector and as a cavity receiver. Optical and thermal simulations show that temperatures up to 800 °C can be achieved, with optical efficiency above 70% and thermal efficiency in the range...

...-effectiveness. Optical models are important tools to predict the solar concentrating capability of the CPC. Despite the numerous, optical models developed in the literature and used for parametric studies of the optical characteristics of CPCs, the angular optical properties of the glass envelope, reflector...

...Moucun Yang; Yuezhao Zhu; Wei Fu; Garth Pearce; Robert A. Taylor The design and construction of solar concentrators heavily affects their optical efficiency, heat utilization, and cost. Current trough concentrators use an equivalent uniform beam with a metal grid substructure. In this conventional...

... AND B UILDING E NERGY C ONSERVATION . Manuscript received April 26, 2017; final manuscript received February 12, 2018; published online June 18, 2018. Assoc. Editor: Jorge Gonzalez. 26 04 2017 12 02 2018 Building Clean energy Conservation Optics Testing Use of daylight...