"Solar collector with asymmetric compound parabolic concentrator for winter energy harvesting and summer overheating reduction: Concept and prototype device," Renewable Energy, Elsevier, vol. 173(C), pages 92-104.
This paper reports the design, construction, and evaluation of a solar parabolic trough concentrator (PTC) with a rim angle of 45, a length of 4.88 m, and an a E. Venegas-Reyes, O. A. Jaramillo, R. Castrejón-García, J. O. Aguilar, F. Sosa-Montemayor; Design, construction, and testing of a parabolic trough solar concentrator for hot water …
The solar acceptance angle of this concentrator is around ±20 . For Beijing, t he solar alt itude angle for the autumn equinox is 50°, and that for the winter so lstice is 26.5°, with a rang e o f
2.1 Point solar concentrators 2.1.1 Heliostat field collectors (HFCs) As shown in Figure 6, the heliostat field collectors (HFCs) consists of thousands of reflective mirrors equipped with a sun tracking system in two axes of rotation to focus the beam radiation on a ...
Concentrating photovoltaic (CPV) technology is a promising approach for collecting solar energy and converting it into electricity through photovoltaic cells, with …
The shape of the Scheffler dish reflector surface is fundamentally a part of the large size parabola, shown by the red colour line in Fig. 1.These concentrators are mostly available in the standard sizes of 8 m 2 and 16 m 2 from the manufacturers but can be manufactured up to 50 m 2 [20]..
The use of solar energy in technical applications is often constrained due to its low energy density relative to the conventional sources of energy. Optical concentration is one option to increase the energy density of the solar radiation resulting in the possibility to use absorbers with small surfaces. Higher temperatures can be achieved under concentrated …
Ref. Type of CPC CR Type of solar cells Research focus Findings Mallick et al. (2006) ACPC 2.00 BP Saturn Performance comparison between CPC-PV and non-concentrating PV modules CPC caused 1.62 times more output power than a similar non
Semantic Scholar extracted view of "Shading and blocking geometry for a solar tower concentrator with rectangular mirrors" by F. Lipps et al. Skip to search form Skip to main content Skip to account menu Semantic Scholar''s Logo Search 220,795,905 papers ...
For the solar concentrator optics, different approximations are valid to concentrate energy cheaply rather than to form a precise image (Winter et al., 1991). As the small segments are used for large ellipses, these small elliptical segments are taken as the parts of circle segments.
Concentrator photovoltaics
Solar collector with asymmetric compound parabolic concentrator for winter energy harvesting and summer overheating reduction: Concept and prototype device. …
By using about the same solar concentrator and collector, plus TES, of high temperature concentrated solar power to feed a TWSC, there is the opportunity to achieve even better costs of 1–1.5 US$ per kg and much earlier. Kayfeci et al. (2019) suggests a cost 2
Editors and Affiliations Deutsche Forschungsanstalt für Luft- und Raumfahrt (DLR), Pfaffenwaldring 38-40, W-7000, Stuttgart 80, Germany C.-J. Winter Sektion Physik, Ludwig-Maximilians-Universität München, Amalienstraße 54, W-8000, München 40, Germany
An important application for thermal concentrators is to heat a fluid (often water), which can be used for electricity production or for process heat. Electricity production is discussed in this section. A solar concentrator uses mirrors or lenses to focus solar energy onto a specific area. ...
This memo provides an analytical formulation of the shading and blocking phenomena for rectangular mirrors. Shading is the loss of illumination on a given mirror due to the interception of the incident sunlight by a neighboring mirror. Blocking is the loss of illumination on the central receiver due to the interception of reflected sunlight by another …
The special configuration enables the reflector to realize the seasonal dual function which performs as a concentrator in winter and a shading device in summer. This collector …
Concentrating solar technologies are in different stages of development; most of them have passed the testing and power production (on a small scale) phases and are being commercialised. Yielding the most power per area among all the solar concentrators is the...
A compound parabolic concentrator (CPC) is defined as a non-imaging-type concentrating collector where incident solar radiations, after reflection from the …
Luminescent solar concentrators (LSCs) serving as potential energy-conversion units have received great attention in building-integrated photovoltaics (BIPVs). However, the main challenge for BIPV-used LSCs is to maintain a high transparency while improving its photo-electric performance. In this work, we fa
As large-area and optically transparent photon harvesting devices, luminescent solar concentrators (LSCs) are promising candidates for building …
This literature review aims to identify new routes to developing high performance and reliable optics for solar concentrator applications. To do this, the subject of solar concentrators must first be explained as it …
In solar thermal energy, all concentrating solar power (CSP) technologies use solar thermal energy from sunlight to make power. A solar field of mirrors concentrates the sun''s energy onto a receiver that traps the heat and stores it in thermal energy storage till needed to create steam to drive a turbine to produce electrical power. […]
Solar concentrator always plays an important role in solar energy collection as it could enhance the energy density effectively. Various structures of solar concentrators have been researched in recent years, among which multi-surface (MS) and multi-element (ME) combinations are the two typical structures. MS concentrator is an improved structure for …
Solar concentrators. For the photothermal catalytic reaction to occur, an efficient, reliable, and suitable light source is required to provide the necessary intensity and …
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