Wind loading on solar concentrators

some general considerations by E. J. Roschke

Publisher: National Aeronautics and Space Administration in [Washington, D.C.?

Written in English
Published: Downloads: 776
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  • Solar power plants -- United States.

Edition Notes

StatementE.J. Roschke ; prepared for U.S. Department of Energy through an agreement with National Aeronautics and Space Administration ; by Jet Propulsion Laboratory, California Institute of Technology.
SeriesJPL publication -- 83-101., NASA-CR -- 173896., NASA contractor report -- NASA CR-173896.
ContributionsUnited States. Dept. of Energy., Jet Propulsion Laboratory (U.S.), United States. National Aeronautics and Space Administration.
The Physical Object
Pagination1 v.
ID Numbers
Open LibraryOL15319982M

concepts for high temperature solar concentrators are presented: dish/Stirling systems acting in the power size below 25 kWe and central receiver systems ranging from the 10 MW to MW are concepts used today mainly for high temperature power production purposes, whereas the third option, a solar furnace, is utilized as a research File Size: 2MB.   Calculate the wind load. Using the values determined above, you can now calculate wind load with the equation F = A x P x Cd x Kz x Gh. Plug in all of your variables and do the math. For example, let’s say you want to determine the wind load on an antenna that is 3 feet long with a diameter of inches in a gust of 70mph : K. Decem Solar Concentrating and Storage Architectonics Joel H. Goodman Solar Concentrating and Storage Architectonics Joel H. Goodman Solar Concentrating and Storage Architectonics (SCSA) is a compilation of studies expanding from the Solar Concentrating Architectonics (SCA) g: Wind loading. Solar concentrators put one of these lenses on top of every solar cell. This makes much more focused light come to each solar cell, making the cells vastly more efficient. Concentrators work best when there is a single source of light and the concentrator can be pointed right at it. This is ideal in space, where the Sun is a single light g: Wind loading.

2-Pack Round Fresnel Lens Diameter mm(") Focal Length mm(") Acrylic fresnel lenses for solar heating, visual education or cooking outside, DIY solar concentrator out of 5 stars 1 $ $ 90Missing: Wind loading. Solar concentrators for steam production JAGST Vol. 14(2) 90 Jomo Kenyatta University of Agriculture and Technology A PROTOTYPE PARABOLIC TROUGH SOLAR CONCENTRATORS FOR STEAM PRODUCTION M. Kawira1, R. Kinyua1 and J. N. Kamau1 wind loads of wind speed greater than 10 m/s. Wind loads that are not mitigated causeFile Size: 2MB. wind load provisions of ASCE include separate consideration of wind directionality by adjusting wind loads by an explicit wind directionality factor, KD, of Since the wind load factor of included this effect, it must be adjusted to in compensation for adjusting the design wind load instead (i.e., / = ). hours of solar and wind plants and thus reduce the cost per kilowatt-hour (KWh) produced. Both wind and solar have tremendous potential for fulfilling the world’s energy needs. In the case of wind, if conventional onshore wind turbines with 80 File Size: 1MB.

Solar Power Plant Design and Interconnection S&C Electric Company E.H. Camm, S.E. Williams Wind & Solar Super Session use 10 to 25 kW solar concentrator in a dish structure – Mirrors collect and concentrate solar energy into a power conversion unit – Includes a reciprocating. Nature of wind loading 10 History of Australian and New Zealand Standards on wind loading 11 History of Australian Standards 11 Previous New Zealand Standards 14 Scope, and determination of wind actions 14 Uncertainties in estimation of wind loading 16 Design wind pressures, forces and load cases 16File Size: 3MB. Publishing is our business. Read Free Content. Coronavirus. Springer Nature is committed to supporting the global response to emerging outbreaks by enabling fast and direct access to the latest available research, evidence, and data.   Solar concentrator. Solar concentrators utilize optical devices which absorb a large area of sunlight. They function on the idea of focusing a bundle of sunlight on a small area with the assistance of a mirror or optical equipment. In order to ensure that the solar concentrator works efficiently, they have to be placed in such a manner that it Missing: Wind loading.

Wind loading on solar concentrators by E. J. Roschke Download PDF EPUB FB2

Arising from wind loading on solar concentrators. Wind loading is site specific and has an important bearing on the design, cost, performance, operation and maintenance, safety, survival, and replacement of solar collecting systems. Emphasis herein is on paraboloidal, two-axis tracking systems.

Thermal receiver problems also are discussed. A survey has been completed to examine the problems and complications arising from wind loading on solar concentrators.

Wind loading is site specific and has an important bearing on the design, cost, performance, operation and maintenance, safety, survival, and replacement of solar collecting systems. COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle.

SERI/TR UC Category: 62e DE " Wind Loading on Solar Collectors S. Bhadurl (University of Texas at El Paso) L.

Murphy (Solar Energy Research Institute) June Prepared under Task Nos. and Abstract A survey was completed to examine the problems and complications arising from wind loading on solar concentrators. Wind loading is site specific and has an important bearing on the design, cost, performance, operation and maintenance, safety, survival, and replacement of solar collecting systems.

Ruelas et al. developed a new methodology for the structural design of solar concentrators with reflective area of m 2 under high wind load of up to.

Inflation-Formed Concentrators. A very good reflecting surface for a solar concentrator can be obtained by vacuum - evaporating a layer of aluminum onto a thin plastic film, such as polyester resin.

The film must then be formed to the geometry of a paraboloid and fixed in this shape for use as a concentrator. It will also analyse on some of the existing solar concentrators used in the solar technology for the past four decades.

The design and performance of each concentrator. into usable energy. Ideally, a solar concentrating system should have the following favorable properties as design criteria: (i) energy-efficient, (ii) cost-effective to construct, and (iii) highly durable and cost-effective maintain, even in the presence of high temperature variations, wind and sand loading, and abrasion.

Optical Design and Characterization of Solar Concentrators for Photovoltaics 6 Light distribution on the absorber 57 7 Electrical and thermal characterization of a concentrating PV/T hybrid 59 Reflector materials 60 Current-Voltage characteristics 62 Short circuit current 63 Irradiation distribution 66Missing: Wind loading.

Introduction. Solar concentration is the most general way to use solar energy. Reflectors with parabolic surfaces and lenses with convex-shaped surfaces (hyperbolic surfaces, actually) are all provided with the property of converging light. Thus, they were used as solar collectors. In this video, I give a simple explanation on how Concentrated Solar Power (CSP) works.

This is the type of solar power that uses thousands of mirrors over hundreds of acres to reflect sunlight on.

Concentrating solar collectors use shaped mirrors or lens to provide higher temperatures that flat plate collectors. Heliostats are tracking mirrors that reflect solar energy onto a fixed target.

This page "concentrates" on providing links, information and plans for Build It Yourself concentrating collectors and g: Wind loading.

The parabolic-trough solar concentrators are one of the basic elements of a concentrating solar power plant. The functional thermodynamic process of a solar plant is shown in [5]. The main elements of the plant are: the solar field, the storage system, the steam generator and the auxiliary systems for starting and controlling the plant.

The File Size: KB. This small solar concentrator can be used for hot water supply too, and this evacuated tube is a receiver of solar radiation from the mirror strips.

These are two hoses for circulating heat. ASCE provides two methods for wind load calculation: a simplified procedure and an analytical procedure. The simplified procedure is for building with a simple diaphragm, roof slope less than 10 degrees, mean roof height less than 30 feet (9 meters), regular shape rigid building, no expansion joints, flat terrain and not subjected to special wind condition.

The analytical Missing: solar concentrators. Lesson plans, interactive activities, and other resources to help students learn about and explore our solar system.

PreK–K, 1–2, 3–5, 6–8, 9– addition the book also covers other forms of solar en-ergy, in particular Solar Thermal applications and Solar Fuels. Many of the topics that are discussed in this book are also covered in the Massive Open Online Course (MOOC) on Solar Energy (DelftX, ETTU) that is given by Arno Smets on the edX platform and starts on 1 September Wind Load Calculator.

In order for a structure to be sound and secure, the foundation, roof, and walls must be strong and wind resistant. When building a structure it is important to calculate wind load to ensure that the structure can withstand high winds, especially if the building is located in an area known for inclement weather.

SOLAR CONCENTRATORS Overview Solar concentrator is a device that allows the collection of sunlight from a large area and focusing it on a smaller receiver or exit. A conceptual representation of a solar concentrator used in harnessing the power from the sun to generate electricity is shown in Figure Size: KB.

Free delivery on millions of items with Prime. Low prices across earth's biggest selection of books, music, DVDs, electronics, computers, software, apparel & accessories, shoes, jewelry, tools & hardware, housewares, furniture, sporting goods, beauty & personal care, groceries & just about anything g: Wind loading  solar concentrators.

Solar energy, radiation from the Sun capable of producing heat, causing chemical reactions, or generating electricity. The total amount of solar energy incident on Earth is vastly in excess of the world’s energy requirements and could.

In the concentrating type of solar collector, solar energy is collected and concentrated so that higher temperatures can be obtained; the limit is the surface temperature of the sun.

However, construction materials impose a lower, more practical limit for temperature capability. The solar concentrator has been tested in the harsh Northern hemisphere environment to ensure high performance and durability. The solar concentrator was engineered to handle any weather condition including high and low ambient temperature, snow & ice loading and strong winds.

The system is designed for 20 + years of low maintenance operation. The efficiency of a concentrating solar power system will depend on the technology used to convert the solar power to electrical energy, the operating temperature of the receiver and the heat rejection, thermal losses in the system, and the presence or absence of other system losses; in addition to the conversion efficiency, the optical system which concentrates the sunlight will.

Figure Sizing of cavity aperture considering beam spreading due to errors. Selection of Concentrator Rim Angle - It is interesting to study the impact of receiver type on the preferred concentrator rim angle.

The whole idea of a concentrator is to reflect the light energy incident on the collector aperture onto as small a receiver as possible in order to minimize heat loss.

Innovative point focus solar concentrator: Volume 1, Introduction, preliminary design and wind loading; Phase 1 topical report Technical Report LaJet Energy`s (LEC) Innovative Concentrator (IC) design opened new doors in membrane reflector technology, wind loading definition, and drive and electronic control.

Concentrator photovoltaics (CPV) (also known as concentration photovoltaics) is a photovoltaic technology that generates electricity from sunlight. Unlike conventional photovoltaic systems, it uses lenses or curved mirrors to focus sunlight onto small, highly efficient, multi-junction (MJ) solar addition, CPV systems often use solar trackers and sometimes a cooling system.

Solar concentrators, (a) parabolic trough, (b) linear Fresnel, (c) dish collectors, and (d) heliostats with solar tower [34]. Concentrating ratio is the ratio of the radiation intensity at the receiver by the radiation intensity received by the by: 3.

Wheelwright, B, Angel, JRP, Coughenour, B & Hammer, KFreeform solar concentrator with a highly asymmetric acceptance cone.

in Proceedings of SPIE - The International Society for Optical Engineering. vol.SPIE, High and Low Concentrator Systems for Solar Energy Applications IX, San Diego, United States, 8/19/Cited by: 1. Depending on the location, a typical “wind load” is 80 mph or 16 lb/ft2.

Wind exerts three types of forces on a structure: Uplift load - Wind flow pressures that create a strong lifting effect, much like the effect on airplane wings.

Wind flow under a roof pushes upward; wind flow .The main load for a solar collector is that comi ng from the wind action on the structure and it is applied as a pressure distributed on the collector surfaces.

From a structural point of view, it must be emphasized that the parabolic-trough concentrator is composed mainly by three systems: the concentration, the torque and the.Abstract. This chapter provides an updated insight into the specifications and design issues associated with the sun tracker in photovoltaic concentrators, regarding both the mechanical structure and the electronic control unit, along with the Cited by: