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Author : W. D. McKelvey
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.3/5 (91 download)
Download or read book Solar-selective Paint Coating Development written by W. D. McKelvey and published by . This book was released on 1979 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : W. D. Mckelvey
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.:/5 (973 download)
Download or read book Solar-selective Paint Coating Development written by W. D. Mckelvey and published by . This book was released on 1979 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar-selective Paint Coating Development. Final Report written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Formulations and process conditions for thickness-sensitive paint coatings were defined. New pigments were evaluated, but none were found which can be used as a substitute for Ferro's F-6331. Coating thermal stability, weathering and humidity resistance, and effects of pigment agglomeration size on coating optical performance were studied. Eighteen hundred square feet of aluminum foil were coated in the first large-scale application with optical properties of .cap alpha./sub s/ = 0.90 and epsilon = 0.25. This demonstrated that a high-speed laminator is capable of producing a coating with uniform optical properties by a roll coating technique. Thickness-insensitive paint coatings were developed with urethane, acrylic, and silicone binders. This type of coating combines the selective coatings currently under development and aluminum flake to provide the low emittance substrate. By varying the ratio of paint to flake, selective properties of .cap alpha./sub s/ = 0.90 and epsilon = 0.31 were achieved. The silicone systems showed the best optical performance. Aluminum powder which gave larger surface area was evaluated and found not feasible. Washing and aging techniques of the aluminum flake were studied in an attempt to improve optical performance. (MHR).
Author : M. A. McChesney
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (714 download)
Download or read book Optimization of Solar-selective Paint Coatings written by M. A. McChesney and published by . This book was released on 1982 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program was the development of low-cost, high-performance, solar-selective paint coatings for solar flat-plate collector (FPC) use and passive thermal wall application. Thickness-sensitive selective paint (TSSP) coating development was intended to demonstrate large-scale producibility. Thickness-insensitive selective paint (TISP) coating development was intended to develop and optimize the coating for passive solar systems and FPC applications. Low-cost, high-performance TSSP coatings and processes were developed to demonstrate large-scale producibility and meet all program goals. Dip, spray, roll, laminating and gravure processes were investigated and used to produce final samples. High-speed gravure coating was selected as the most promising process for solar foil fabrication. Development and optimization of TISP coatings was not completely successful. A variation in reflective metal pigment was suspected of being the primary problem, although other variables may have contributed. Consistent repeating of optical properties of these coatings achieved on the previous program was not achieved. However, a new method of achieving better control of coating components was conceived and preliminary development initiated. The new concept was described as an engineered pigment approach. The engineered pigment approach uses TSSP-coated metal foil particles instead of uncoated aluminum flakes in a liquid TSSP coating. The approach offers many advantages over the use of uncoated aluminum flakes: control of particle flatness, size, and thickness; control of the optical selectivity of each particle; and control of the liquid TSSP coating surrounding the coated particles.
Author : O. P. Agnihotri
Publisher : John Wiley & Sons
ISBN 13 :
Total Pages : 248 pages
Book Rating : 4.:/5 (43 download)
Download or read book Solar Selective Surfaces written by O. P. Agnihotri and published by John Wiley & Sons. This book was released on 1981-04-13 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers the design, production, evaluation and application of surfaces having high absorptance in the solar spectrum and low emittance at the operating temperature of the solar collection system. Presents current, significant data on the enhancement of solar collector efficiency by the use of selective surfaces.
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)
Download or read book Commercialization of High-Temperature Solar Selective Coating: Cooperative Research and Development Final Report, CRADA Number CRD-08-300 written by and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal for Concentrating Solar Power (CSP) technologies is to produce electricity at 15 cents/kilowatt-hour (kWh) with six hours of thermal storage in 2015 (intermediate power) and close to 10 cents/kWh with 12-17 hours of thermal storage in 2020 (baseload power). Cost reductions of up to 50% to the solar concentrator are targeted through technology advances. The overall solar-to-electricefficiency of parabolic-trough solar power plants can be improved and the cost of solar electricity can be reduced by improving the properties of the selective coating on the receiver and increasing the solar-field operating temperature to >450 degrees C. New, more-efficient selective coatings will be needed that have both high solar absorptance and low thermal emittance at elevated temperatures. Conduction and convection losses from the hot absorber surface are usually negligible for parabolic trough receivers. The objective is to develop new, more-efficient selective coatings with both high solar absorptance (..alpha.. > 0.95) and low thermal emittance (..epsilon..
Author :
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (925 download)
Download or read book High Temperature Performance of High-efficiency, Multi-layer Solar Selective Coatings for Tower Applications written by and published by . This book was released on 2015 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The roadmap to next-generation concentrating solar power plants anticipates a progression to central towers with operating temperatures in excess of 650°C. These higher temperatures are required to drive higher power-cycle efficiencies, resulting in lower cost energy. However, these conditions also place a greater burden on the materials making up the receiver. Any novel absorber material developed for next-generation receivers must be stable in air, cost effective, and survive thousands of heating and cooling cycles. The collection efficiency of a power tower plant can be increased if the energy absorbed by the receiver is maximized while the heat loss from the receiver to the environment is minimized. Thermal radiation losses can be significant (>7% annual energy loss) with receivers at temperatures above 650°C. We present progress toward highly efficient and durable solar selective absorbers (SSAs) intended for operating temperatures from 650°C to 1000°C. Selective efficiency ([eta]sel) is defined as the energy retained by the absorber, accounting for both absorptance and emittance, relative to the energy incident on the surface. The low emittance layers of multilayer SSAs are binary compounds of refractory metals whose material properties indicate that coatings formed of these materials should be oxidation resistant in air to 800-1200°C. On this basis, we initially developed a solar selective coating for parabolic troughs. This development has been successfully extended to meet the absorptance and emittance objectives for the more demanding, high temperature regime. We show advancement in coating materials, processing and designs resulting in the initial attainment of target efficiencies [eta]sel> 0.91 for proposed tower conditions. Additionally, spectral measurements show that these coatings continue to perform at targeted levels after cycling to temperatures of 1000°C in environments of nitrogen and forming gas.
Author :
Publisher :
ISBN 13 :
Total Pages : 356 pages
Book Rating : 4.F/5 ( download)
Download or read book Energy written by and published by . This book was released on 1983 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (727 download)
Download or read book Progress to Develop an Advanced Solar-Selective Coating written by and published by . This book was released on 2008 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The progress to develop a durable advanced solar-selective coating will be described. Experimental work has focused on modeling high-temperature, solar-selective coatings; depositing the individual layers and modeled coatings; measuring the optical, thermal, morphology, and compositional properties and using the data to validate the modeled and deposited properties; re-optimizing the coating; and testing the coating performance and durability.
Author : H. Price
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (316 download)
Download or read book Development and Testing of High-Temperature Solar Selective Coatings written by H. Price and published by . This book was released on 2005 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Solar Energy Technologies Program is working to reduce the cost of parabolic trough solar power technology. System studies show that increasing the operating temperature of the solar field from 390 to>450 C will result in improved performance and cost reductions. This requires the development of new more-efficient selective coatings that have both high solar absorptance (>0.96) and low thermal emittance (
Author :
Publisher :
ISBN 13 :
Total Pages : 680 pages
Book Rating : 4.3/5 (91 download)
Download or read book Solar Energy Update written by and published by . This book was released on 1984 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 564 pages
Book Rating : 4.:/5 (3 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1983 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 756 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1983 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author :
Publisher :
ISBN 13 :
Total Pages : 524 pages
Book Rating : 4.3/5 (91 download)
Download or read book Energy: a Continuing Bibliography with Indexes written by and published by . This book was released on 1978 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 566 pages
Book Rating : 4.X/5 (2 download)
Download or read book Proceedings of Annual Solar Heating and Cooling Research and Development Branch Contractors' Meeting written by and published by . This book was released on 1979 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar-absorber-selective Paint Research written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Research and development on thickness-sensitive and thickness-insensitive solar paints are discussed. The thickness-sensitive paints include reverse roll coated, gravure printed, and spray coated paints. The coating methods and optical properties of the thickness-sensitive paints are discussed. The thickness-insensitive solar paints include a low emittance flake such as aluminium-flake, and pigment. Durability tests are discussed, including accelerated weathering and humidity durability tests, for the thickness-sensitive coatings. (LEW).
Author : R. J. H. Lin
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (88 download)
Download or read book Selective Paint and Black Chrome Coatings Development written by R. J. H. Lin and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
