... −2.78 × 10 −04 −1.48 × 10 −04 −5.54 × 10 −04 c 3.49 × 10 −07 3.62 × 10 −07 1.39 × 10 −06 d −1.47 × 10 −10 −3.98 × 10 −10 −1.57 × 10 −09 e 0 1.65 × 10 −13 6.67 × 10 −13 Table 1 Parameters for the PTC and the Ribs Geometrical and optical parameters...

.... , 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 [50] Canavarro , D...

... 2022 11 11 2022 efficiency energy materials optics photovoltaics radiation solar Directorate for Engineering 10.13039/100000084 CBET-2103008 Optical characterization and design of subwavelength objects are challenging problems due to the complexity...

...: 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...

... enough to handle heat transfer to a compressed gas. The assessment of collector optical performance in the sections above depended on the size and shape of the receiver to be used, and as noted, a big advantage of the PWF concept is that its converging cone of reflected light is suitable for a cavity...

...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...

... : I ncluding W ind E nergy and B uilding E nergy C onservation . 31 07 2021 01 01 2022 02 01 2022 27 01 2022 azimuth-elevation graphical ray tracing heliostat spinning-elevation tracking angle optics solar receiver solar tower Proper tracking...

...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...

.... The system is a linear focusing solar system intended to be used for applications across a broad range of industrial sectors for generating medium temperature heat up to 250 °C. The Monte Carlo ray tracing method was used to predict the optical performances of the receiver. We have developed a simplified...

... surface normal vector of 24.5 deg. Design simulations predicted that the peak flux of this HFSS would be 2980 kW th /m 2 , with a total power delivered to a 6-cm target of 3.3 kW th , for a transfer efficiency of 33.3%. Experimental characterization of the HFSS using optical flux mapping and calorimetry...