Solar fresnel lens solar concentrator for ecofriendly power. Aug 25, 2012 the spherical glass solar energy generator uses the advantageous strategy of implementing a ball lens and specific geometrical structure to improve energy efficiency by 35%. The scpv was designed and optimized using raytracing computer simulations. Sep 09, 2011 lens parameters that will be interrogated include focal length, index of refraction, prism fidelity, aperture, transmission and concentration ratio. For high fresnel concentrating pv or pvt systems, the second optical element soe is the key component for the high optical efficiency at a wider deflection angle, which is important for overcoming unavoidable errors from the tacking system, the fresnel lens processing and. Solar concentrator modules with siliconeonglass fresnel lens panels and multijunction cells valery d. With a gentle nudge, the concentrators move relative to the cells, keeping sunlight in focus all day. The use of solar energy requires optimizing each part of a photovoltaic system. The lens is manufactured of polycarbonate, which is high temperature resistant, and has a. In atable membrane solar concentration systems for space. In concentrating solar power technology, the optical efficiency of solar collector influences collector performance significantly. What temperature you can get by fresnel lens for solar concentrator,more than degrees. The principle of this lens is the chopping of the continuous surface of a standard lens into a set of surfaces with discontinuities between them. We make the big fresnel lens for solar concentrating.
Highefficiency multijunction mj solar cells, being very. Design and analysis of rooftop linear fresnel reflector. The concentrator consists of two fresnel lenses, one concave and one convex. A wide variety of fresnel lens solar concentrator options are available to you, such as pet, plastic. Solar concentrators rensselaer polytechnic institute. The focal spot size is normalized for thousandth of concentrator diameter d c. Well help you to work out whether its worth paying extra for a highend version or whether youre getting just as good a deal by getting the cheaper item. In atable fresnel lens techniques have been used with success 78, and have demonstrated. Design and analysis of a highefficiency, costeffective. Which is the best solar thermal collection technology for electricity.
Solar concentrator pdf concentrators require direct solar illumination, and the optics or mirrors must move during. The performance of the scpv was demonstrated using two settings. Design, construction, and test of a miniature parabolic. Fresnel lenses for solar applications require high precision tracking. It was concluded that structured reflectors are used at their largest benefit if they are applied in new concentrators designed for structures. It consists of a flexible fresnel lens attached to end supports, wherein said end supports stretch the lens to maintain its proper position and shape on orbit in space. The fresnel lens focuses onaxis rays in maroon close to the soe surface.
It is easy to forget that you, dear reader, may not be one of those who work inexactly the same field as we do. Optical design and characterization of solar concentrators for photovoltaics 4 ruption of the translational symmetry when the microstructured reflectors were introduced. Building integration of concentrating systems for solar cooling. The project is funded by gcep exploratory grant for the year 20102011. In addition, the change of refractive index due to temperature variation in outdoor operation conditions is also considered in the design. Concentrated solar energy applications using fresnel lenses. We are working on making a novel nontracking and low cost solar concentrator. In this paper, two different reflective surfaces are used to increase the optical efficiency of a parabolic trough solar collector.
Planar microoptic solar concentration using multiple imaging lenses. Fresnel lens solar concentrator derivations and simulations. The fresnel lens fl is a flat optical solar concentrator. Optical design of a static solar concentrator using. Tiny lenses and mirrors may bring concentrating solar power. We offers a complete range of fresnel lenses sizes and types. Fresnel solar concentrator is one of the most common solar concentrators in solar applications.
The overall efficiency of flsc system is found to be 51% and can generate process steam required for the industry. Solar concentrator is a device that allows the collection of sunlight from a large area and focusing it on a smaller receiver or exit. You may be a researcher in some optical science interested in the core subject of this book. A vast amount of research is currently focused on perfecting each of these areas. Publishers pdf, also known as version of record includes final. Pdf computer aided optimizationinnovation of passive. Then the soe distributes all these rays over the cell surface in a homogeneous way.
The performance of fresnel concentrator is checked by testing the efficiency of solar cell, and the experimental results prove that the proposed design method of fresnel concentrator surfaces. Thermal analysis of a linear fresnel lens solar collector with black body cavity receiver 107 the lens considered in this study is a flat nonimaging fresnel lens fig. We present an optical design for a static solar concentrator for a photovoltaic cell scpv. Concentrated solar energy applications using fresnel. It is shown that the projected light intensity is simply correlated to the angleresolved efficiency of a concentrator, conventionally obtained by a direct illumination. Expected optical performance of novel type multielement. Study of performance of fresnel lens solar concentrator. The primary concentrators of a solar concentrator system are those parts that first receive the solar irradiation, and first concentrate it. Merced, ca 95343, usa bschool of engineering, university of california, merced, 5200 north lake rd. A final report for the first phase of the project has previously been delivered. It will also analyse on some of the existing solar concentrators used in the solar technology for the past four decades. What temperature you can get by fresnel lens for solar. Design and performance of nanostructurebased luminescent solar concentrators g. Smestad hewlett packard company, optoelectronic division, 370 w.
Design of a parabolic trough solar collector using a. Cnim is a specialist in the construction of complex nonfossil energy power plants waste, biomass. Secondary optics for fresnel lens solar concentrators. Typical arrangement for a geometrical or passive concentrator. Simple optics and raytracing techniques are used to. Whereas fresnel lens is a refractive concentrator, all the incident solar beams are concentrated on opposite side of lens, thus solar beams not attenuated on account of opacity of intervene absorber body as in latter case. Solar concentrator modules with siliconeon glass fresnel. Design and machining of fresnel solar concentrator surfaces. Without the solar tracking the system works poorly except when the sun is directly overhead.
Aug 07, 2018 what temperature you can get by fresnel lens for solar concentrator,more than degrees. Design and analysis of rooftop linear fresnel reflector solar concentrator k. Solar concentrating systems can also be used to power desalination systems, either by directly providing heat energy or via conversion to electrical energy. The study of performance of fresnel lens solar concentrator and steam generation using fresnel lens solar concentrator is presented here. Ultrallghtwelght fresnel lens solar concentrators for space power. Stretched lens array inflatable fresnel lens assembly for spacebased oper. Compact linear fresnel reflector technology by cnim. Inflatable membrane solar concentration systems for. Optical design of a static solar concentrator using fresnel. The designed concentrator surfaces are fabricated by ultraprecision turning technology. Pointfocus spectral splitting solar concentrator for. This makes much more focused light come to each solar cell, making the cells vastly more efficient.
Protective coatings are of prime interest for solar power concentrator arrays and ultralight inflatable fresnel lens solar concentrators. The new concentrator system was developed by nedo project from 2001 to 2003. The demand for process heat particularly low pressure steam is increasing in recent past. Ultralightweight fresnel lens solar concentrators for. Thermodynamic limits of light concentrators 101 fl 2 fig. The concentration ratio is defined as the ratio of the area of the aperture of the concentrator to the area of the receiver that is reflected upon by the concentrator. Ultralightweight fresnel lens solar concentrators for space power. Structured luminescent solar energy concentrators technische. The lenses and mirrors focus sunlight on the solar cell like a magnifying glass. A novel, highefficiency, extremely lightweight, robust stretched fresnel lens solar concentrator for space power is described.
The newly released documentation provides information allowing anyone to manufacture a fresnellens solar concentrator called diversity capable of delivering 260 degrees centigrade in the. Thermal analysis of a linear fresnel lens solar collector with black body cavity receiver 109 ue uaedge ac,wm 2k. The size of the solar lens is 1040mm x 780mm, thickness is 3mm. Solar concentrator systems, industrial process heat, fresnel lens concentrator, optical. Entech, using the shortcircuit current output of a 1cmwide triplejunction solar cell to determine the focussing performance of the 8. Tiny lenses and mirrors may bring concentrating solar. Almost everyone has had experience with a light concentrator.
A method for the optical characterization of a solar concentrator, based on the reverse illumination by a lambertian source and measurement of intensity of light projected on a far screen, has been developed. Solar concentrator based multipurpose sunlight harvesting. In order to compactly represent a large variety of lens configurations, some variables. High performance fresnelbased photovoltaic concentrator. Axially graded index lens agile as a nontracking solar. Gigantic solar fresnel lens 64 spot solar concrete crusher can melting with a solar scorcher. Lens parameters that will be interrogated include focal length, index of refraction, prism fidelity, aperture, transmission and concentration ratio. The overall efficiency of fresnel lens solar concentrator is around 51% and can generate process steam required in the industry. Optical design and characterization of solar concentrators. Optical simulation and experimental verification of a. There is a vast opportunity for solar concentrator designs to expand into other scientific fields and take advantage of these developed resources.
Us6075200a stretched fresnel lens solar concentrator for. The w are spectral weighting factors, w is the lens width, ay the serration width, and the summations, c and i, are over all lens serrations and all solar wavelengths l. Diy solar concentrator instructions released by energytorrent. A practical optimization design is proposed, in which the solar direct light spectrum and multijunction cell response range are taken into account in combination, particularly for the fresnel concentrators with a high concentration and a small aspect ratio. The smallaperture area lenses are arranged as a panel with siliconeonglass structure where the glass plate serves as the front surface of a module. Fresnel lens is a noteworthy solar concentrator to increase the density of the solar flux energy xie et al. Secondary optics are used in concentrating photovoltaic cpv systems with fresnel lens primaries to increase the optical system efficiency by catching refracted light that otherwise would miss the receiver, better the tracking tolerance acceptance halfangle and enhance the flux uniformity on the cell. This is due to the fact that this system was intended for use with an one axis solar tracking system. Refracting type solar concentrator has been designed and developed which can be used for generating heat in the temperature range of 100c to 200c. Fresnel lens solar concentratorderivations andsimulations. Development of a compound parabolic solar concentrator to increase solar 167 12. A conceptual representation of a solar concentrator used in harnessing the power from the sun to generate electricity is shown in figure 1.
The peak efficiency of the concentrator module in the best. It is a fundamental law of physics that for solar concentrators, if we want to. Mar 25, 2014 cnim is a specialist in the construction of complex nonfossil energy power plants waste, biomass. Pointfocus spectral splitting solar concentrator for multiple cells concentrating photovoltaic system carlo maragliano1, matteo chiesa1 and marco stefancich2 1 laboratory for energy and nanoscience lens, institute center for future energy systems ifes,masdar institute of science and technology, p. Osa optical efficiency of solar concentrators by a. One important factor in the analysis of solar concentrators is the concentration ratio. If youre still in two minds about fresnel lens solar concentrator and are thinking about choosing a similar product, aliexpress is a great place to compare prices and sellers. Output explanation of this 2 fresnel lens cpc system the results of the 2 fresnel lens and one cpc system are quite poor. The dashed curve shows the distribution formally corresponding to standard thermodynamicphotometrical limit.
This allows a substantial reduction in thickness and thus weight and volume of the lens, at the expense of reducing the imaging quality of the lens. Mar, 20 a solar concentrator diy can seem like the easiest thing in the world if someone else is doing the hard work a guy who calls himself grant thompson used a fresnel lens from a dismantled old toshiba projection tv and shows the world on youtube how his diy solar concentrator can scorch nearly anything from pennies and concrete to eggs. This latter curve was not normalized for the real darkening of solar disk to its edge, which is considered for the remaining curves. The thermal performance and cost benefits of fresnel lens solar concentrator are also described. We could custom the projection screen according to client requirement. For sale by the national technical information service, springfield, virginia 22161.
Renewable energy resources, solar energy, solar concentrator. The conversion efficiency of a concentrator solar cell ingapingaasge was more than 37 % as high as 500 x optical concentration ratio. Measurements were made at three solar beta angles, 0, 12, and 24 degrees, with the lens receiver articulation at the appropriate position for each beta angle. These systems use minimal volume, and then use compressed air to \blowup or expand once in space. Solar concentrators put one of these lenses on top of every solar cell. This special fresnel lens, 4 array fresnel solar concentrator optical acrylic lens for green energy and ecofriendly power is a lowcost, lightweight optical material used for focusing sunlight to solar panels to ensure operation under highflux density. It has to be placed on the way of incident rays, which is an obstruction and attenuate the quantum of incident solar beams. The newly released documentation provides information allowing anyone to manufacture a fresnellens solar concentrator called diversity capable.
Rumyantsev1 1ioffe physical technical institute, 26 polytechnicheskaya str. Ghosh a aschool of natural sciences, university of california, merced, 5200 north lake rd. We have designed and developed a nontracking solar concentrator system based on a combination of large fresnel lens and segmented mirrors. The design and performance of each concentrator will be explained and compared. This fresnel lens solar concentrator system is useful to generate low pressure steam for various applications like industrial process heat and steam cooking. Concentrators work best when there is a single source of light and the concentrator can be pointed right at it. In order to compactly represent a large variety of lens configurations, some variables that define the fresnel lens will be parameterized. Each groove is approximated by a flat surface that reflects the curvature at that position of the conventional lens, so each groove behaves like an individual prism.
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