Noting that little work has been done in the area of lowering the cost of solar dish, this paper demonstrates the mechanical design of low cost parabolic solar dish concentrator with smalltomoderate size for direct electricity generation. Figure 1 cylindrical parabolic collector 2 figure 2 parabolic dish collector 2 figure 3 compound parabolic concentrator 2 figure 4 cpc construction 6 figure 5 absorber shapes 7 figure 6 two stage concentrators 8 figure 7 cpc for solar still 9 figure 8 solar. The objective of this research was to design a low cost parabolic solar dish concentrator with smallto moderate size for direct electricity generation. Dec 14, 2009 parabolic dish collector december 14, 2009 leave a comment go to comments using parabolic dishes is a welltested approach to concentrate solar radiation, and was an early experimental tool at many locations worldwide. Parabolic dish reflector pdr point 100 100500 heliostat field collector hfc point 1001500 1502000 note. How to build a tracking parabolic solar collector georgesworkshop book 90 pages 205 color photos illustrations two full size patterns for diy solar heat. Solar energy unit four solar collectors concentrating collectors for many applications it is desirable to deliver energy at.
Pdf an overview on parabolic trough solar collectors. Troughs and bowls are linefocus tracking reflectors that concentrate sunlight onto receiver tubes along their focal lines. This allows this type of collector to achieve the highest concentration ratios among all other type of solar collectors. The outlet temperature of the fluid from the collector 20. A parabolic trough solar collector uses a mirror in the shape of a parabolic cylinder to reflect and concentrate sun radiations towards a receiver tube located at the focus line of the parabolic cylinder. When a new design for a solar collector is developed it is necessary to guarantee that its intercept factor is good enough to produce the expected thermal jump. I was inspired by the functionality of a new software called 123dmake that makes it easy to build large, geom. World record setting solar parabolic dish stirling system. Pdf solar power is a largest potential energy sources that ever receives by the earth. This paper reveals prototype design of solar parabolic dish collector with truncated cone shaped helical coiled receiver made up of copper and coated with nickel. For this purpose, tracking mechanisms similar to the ones described in the previous.
The difference here being that it is a 12foot wide dish consisting of an aluminium. Jul 20, 2010 advantages of parabolic solar systems solar energy systems have been around for years but their efficiencies are low due to heat loss and inefficient collection of the days solar energy. Parabolic solar collector ayush khare 1, sachin saxena, c h tyagi1 and sanjeev kumar1 corresponding author. Design, construction and testing of a parabolic solar steam. The thermal performance of solar collectors can be. A solar bowl is a type of solar thermal collector that operates similarly to a parabolic dish, but instead of using a tracking parabolic mirror with a fixed receiver, it has a fixed spherical mirror with a tracking receiver. The sun is one of the richest energy sources in this context and is almost inexhaustible. Concentrating collector modules can be used alone or in a multimodule system. The purpose of this study was to define mean and peak wind loads on parabolic dish solar collectors. Manual making of a parabolic solar collector gang xiao. Mechanical design of a low cost parabolic solar dish. Approximately a 700 watt solar heat input is required to operate the engine which rated power output is 2 watt 1. Jan 23, 2010 the suncatcher is a 25kilowattelectrical kwe solar dish stirling system which consists of a unique radial solar concentrator dish structure that supports an array of curved glass mirror facets, designed to automatically track the sun, collect and focus, that is, concentrate, its solar energy onto a patented power conversion unit pcu.
This article presents the performance of a solar parabolic concentrator coupled to a te module. An economic parabolic dish concentrating system was built at the sustainable energy science and engineering center sesec at florida state university in tallahassee, florida. The most efficient shape for a solar collector is the parabolic shape since it can focus the suns energy on a small heat exchanger, 10 x 10. Introduction about 70% of the planet is covered in water, yet of all of that, only around 2% is fresh water, and of that 2%, about 1. Method of a given focus and directrix was employed in the construction of the. We recommend getting 3 quotes for any construction project. I tried to show what a determined person can do with ordinary tools and materials, a good hardware store and a bit of perseverance a high performance do it yourself diy solar heater. A wide variety of parabolic solar collector options are available to you, such as pressurized, evacuated tube, and nonpressure. Modeling of a parabolic solar collector system for water desalination. The outlet temperature of the fluid from the collector. Parabolic dish systems use satellitelike mirror dish es to focus the light onto a singlecentral receiver in front of the mirror. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Nomenclature a area of the solar collector or reflector c pa specific heat at the average air temperature i maximum current of the te modules at a matched load. The receiver absorbs the incoming radiations and transforms them into thermal energy.
Design and construction of a solar collector parabolic dish. A parabolic or paraboloid or paraboloidal reflector or dish or mirror is a reflective surface used to collect or project energy such as light, sound, or radio waves. They so far have the highest heatelectricity conversion efficiencies among all csp designs up to 30 %. Concentration ratio is defined as the aperture area divided by the receiverabsorber area of the collector. If the design is successful, the parabolic solar collector device can be marketed to the millions of household owners. They are the solar concentrating system, the heat absorbing system, the heat storage system, the power generation system and the power plant control system. They are basically unusually shaped mirrors parabolic in shape that focus the heat of the sun on a pipe carrying a special fluid. Method of a given focus and directrix was employed in the construction of the parabolic dish. Parabolic dish solar concentrators have shown high conversion efficiencies and high operating temperatures, of the order of 750 o c, at annual efficiency of 23% and 29% peak 30, 31. Lowcost concentrating solar collector for steam generation by john dascomb a thesis submitted to the.
Parabolic dish solar thermal system csp plant manufacturer. Solabolic next generation of parabolic trough solar. Parabolic satellite dish conversion solar cooker youtube. This reduces efficiency, but makes it cheaper to build and operate.
A solar thermal collector collects heat by absorbing sunlight. Box 20423, nicosia 2152, cyprus received 18 june 2003. Pdf performance evaluation of parabolic dish type solar collector. A typical array of solar collectors is seen opposite. Water distillation system using parabolic dish solar collector. Novel lowcost parabolic trough collector structures. To demonstrate such problem a parabolic dish solar collector is designed to provide energy to the ltd stirling engine for small scale power generation. Parabolic trough collector technology abengoa solar. Abst concentrating collector comprising a 2000 mm diameter, and. Mar 20, 2020 want a quote from parabolic solar energy inc.
Solar collector in the shape of a parabolic mirror reflects the incident solar energy on the longitudinal axis of the solar collector. The equipment is well characterized with over 50,000 hours of onsun time. This is how you put together a solar burner from cantina west. Pdf design of concentrated parabolic dish collector for vapour. Best for fast parabolic dish collector, one or more parabolic dishes concentrate solar energy at a single focal point. The sunlight which enters the mirror parallel to its plane of symmetry is focused along the focal line, where objects are. Water distillation, saline water, solar dish collector, parabolic dish collector, coastal area. The shape of a parabola means that incoming light rays which are parallel to the dish s axis will be reflected toward the focus, no matter where on the dish they arrive. Types of concentrating solar collectors your electrical. A wide variety of solar parabolic dish options are available to you, such as vacuum solar collector, pressurized, and manifold collector. Loads on isolated collectors and on collectors within a fi e 1 d of collectors were obtained.
The grabcad library offers millions of free cad designs, cad files, and 3d models. Compound parabolic concentrator iv list of figures diagrams. In 2010, i wrote how to build a tracking parabolic solar collector describing my self designed and built working prototype and test results. For this project i set out to create the solar equivalent of the hotwater tap on a coffee machine. Parabolic dish collector december 14, 2009 leave a comment go to comments using parabolic dishes is a welltested approach to concentrate solar radiation, and was an early experimental tool at many locations worldwide. This article communicates thermal performance of a low cost solar parabolic dish collector. More than one hundred years ago black painted water tanks were used as simple solar water heaters in a number of countries. You can also choose from solar thermal, water heater solar parabolic dish, as well as from glass solar parabolic dish there are 4 suppliers who sells solar parabolic dish on, mainly located in asia. The size of the concentrator is determined by its engine. Meyer department of mechanical and aeronautical engineering, university of pretoria abstract solar thermal brayton cycles utilise concentrated sun rays and can be used to power microturbine generators. These are two different satellite dishes i converted for solar cooking. Join the grabcad community today to gain access and download. A major intent of the study was to define wind load reduction factors for collectors within a field resulting.
The goal of this paper is to present the optical and the thermal analysis of a parabolic dish concentrator with a spiral coil receiver. To build the base of the solar collector two partial triangles were cut from the remaining plywood. Solar energy received by earth through radiation can be. I tried to show what a determined person can do with ordinary tools and materials, a good hardware store and a bit of perseverance a high performance do it. Diy solar project takes shape when i wrote about denise and dan rojas video of their diy solar collector theyre building from an old satellite dish. Using the sun energy to heat water is not a new idea. Parabolic dish collectors large mirrors called heliostats concentrate sunlight on the top of a central receiver mounted at the top of a tower. Sep 30, 2010 our current 2m diameter parabolic dish collector produces 40 grams of steam per minute and can be produced locally in africa and asia. A parabolic dish reflector pdr, shown schematically in figure 3. This is the concave dish made of wood and lined with an aluminium sheet.
This factor is directly related with the fidelity of the trough geometry with respect to. The purpose is to generate high temperature thermal energy for application in services of small and medium industry as well as domestic uses. The effects of air cooling, flow rate and fan orientation are investigated. Manual making of a parabolic solar collector gang xiao laboratoire j. A typical parabolic dish collector has a dish of 6 m diameter. Lowcost concentrating solar collector for steam generation. Advanced lowcost receiver for parabolic trough solar power. Parabolic trough collectors are frequently employed for solar steamgeneration because temperatures of about 300 can be obtained without any serious degradation in the collector s efficiency. A parabolic trough is a type of solar thermal collector that is straight in one dimension and curved as a parabola in the other two, lined with a polished metal mirror. The incident solar radiation falling on the collector is utilized for pipe heating. Lowcost concentrating solar collector for steam generation by john dascomb a thesis submitted to the department of mechanical engineering in partial ful llment of the requirements for the degree of master of science degree awarded. Solar thermal collectors and applications soteris a. In case of a parabola, incoming rays which are parallel suns rays arriving are nearly parallel will be reflected always to the focus regardless of where they arrive on the dish.
Design, construction and testing of a parabolic solar steam generator joshua folaranmi 120 parabolic dish. Mechanical design of a low cost parabolic solar dish concentrator. Such model can be installed in rural areas which are not connected to governmental grid. Feb 27, 2018 two proven diy methods for converting an old offset parabolic satellite dish into a solar cooker. Solar collector the energy of the solar radiation is in this case converted to heat with the use of solar panel. Performance evaluation of flat plate collector watt the useful heat output of a flatplate solar collector is given by 18.
Building a parabolic solar hotwater heater using 123d. Design, construction, and test of a miniature parabolic. Kalogirou department of mechanical engineering, higher technical institute, p. Solar tracking for a parabolic dish used in a solar thermal brayton cycle w. Its uses do not contribute to emission of greenhouse gases and other pollutants to the environment.
Due to the limitations of size and the small quantity of fluid, dish type solar collectors are suitable for only small power generation up to few kw. The solar dish stirling technology is well beyond the research and development phase, with more than 20 years of recorded operating history. Its shape is part of a circular paraboloid, that is, the surface generated by a parabola revolving around its axis. Parabolic dish csp technology parabolic dish geometry concentrates light in a single focal point, i. The receiver in or closed to the focal point of the parabolic dish receives the. A fixed parabolic mirror creates a variously shaped image of the sun as it moves across the.
Evaluation of a parabolic trough collector performance soteris a. Water distillation system using parabolic dish solar. The dish structure must fully track the sun to reflect the beam into the thermal receiver. Design, construction and testing of a parabolic solar. Table 1 cost of subsidiary requirements requirement cost incurred safe. The global need for energy is constantly increasing and makes it inevitable to reinforce the use of alternative resources. Parabolic dish concentrating collector for indirect solar cooking amos veremachi.
Schematic of a parabolicdish solar concentrator 57. Flat plate versus evacuated tube solar collectors pdf. This line is called the focal axis of the parabolic collector. Advantages of parabolic solar systems solar power solar. Parabolic dish concentrating collector for indirect solar.
The 9 meter solar concentrator uses a slew drive instead of an actuator for rocksolid. This paper traces development of parabolic dish solar concentrator technology and explores scope of work in the field, with special focus on india. Electricity generation from a solar parabolic concentrator. Original 2010 book how to build a tracking parabolic solar collector. Solar burner installation instructions on latest and. Pdf estimating intercept factor of a parabolic solar. The parabolic trough reflector is a solar energy collector designed to capture the suns direct solar radiation over a large surface area and focus or concentrate it onto a small focal point area, increasing the solar energy received by more than a factor of two. Parabolic dish concentrating collector for indirect solar cooking. Solar tracking for a parabolic dish used in a solar. Himin is central tower solar thermal system manufacturer in china, we completed the production and construction of asias first mwlevel tower solar thermal power station. Solar collectors are one way of focussing the suns rays to heat up fluids.
Most solar concentrator tracking technologies use an actuator for vertical tracking. The 9 meter hybrid parabolic solar concentrator solar dish continuously tracks the sun throughout the day using a dual axis tracker enabling the system to harvest maximum solar energy from early sunrise to late sunset. Since 1984, the solar dish stirling equipment has held the worlds efficiency record. Come see us at to get your own parabolic dish to co. Pdf status of parabolic dish solar concentrators vanita thakkar. The main components of a solar dishengine system are a parabolic collector, a receiver.
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