Parabolic trough collector ptc is the most established solar concentrating technology worldwide. The materials are easily obtainable and the design is simple and straight forward the concentrators can be made with readily available materials and simple tools. Heat transfer analysis and modeling of a parabolic trough solar collector. A fluxmeter for parabolic trough solar concentrators is described. This is primarily due to the nine plants operating in californias mojave desert since the mid1980s. The parabolic trough pt is the most used concentrator in csp concentrated solar power. A parabolictrough collector ptc is a linearfocus solar collector, basically composed of a parabolic trough shaped concentrator that reflects direct solar radiation onto a receiver or absorber tube located in the focal line of the parabola see fig. However, this concentrator technology is facing a significant challenge to increase its overall. Solar heating parabolic trough solar collector parabolic solar concentrator made in china, find complete details about solar heating parabolic trough solar collector.
A simple stainless steel parabolic trough mirror that produces a near perfect linear beam. Solar energy for domestic and small industries with help. Keywords parabolic trough solar collector, solar tracking tilt sensor. A parabolic trough is a one dimensional parabola that focuses solar energy onto a line. Thus, in order to encourage and facilitate studies around the parabolic solar concentrators used in these plants, the present work aims to develop and implement a mathematical model to calculate flow parameters and heat transfer applied to parabolic trough solar. Performance evaluation of solar parabolic trough collector.
Jaramillo and others published parabolic trough concentrators for low enthalpy processes find, read and cite all. In this video new physicist shows you how to build a high efficient solar water heater using zinc sheet and copper pipe. I pipe located at the focus line of the parabolic trough collector. Article information, pdf download for performance evaluation of parabolic trough solar collector with. Usually used in collaboration with a heat exchange unit, a device that moves heat from the focused light to moving fluid inside the heat exchange, a parabolic solar concentrator can be made easily in your own backyard. Parabolic trough solar powered water heater v2 bruce snyder. Parabolic solar concentrator glass envelope receiver ermal oil f.
Parabolic trough1 is optimal dynamic trading strategies with risk limits pdf the ownload free pdf file reader most mature technology for large scale exploitation of solar. A free download of soltrace is available at the following website. Energy supply and solar resource potential each year, the united states is becoming more dependent on foreign sources of energy. It is shown in this article that the optimal shape, assuming a perfect parabolic figure for the concentrating mirror, is instead oblong, and is approximately given by. The sunlight which enters the mirror parallel to its plane of symmetry is focused along the focal line, where objects are positioned that are intended to be heated. Alternative designs of parabolic trough solar collectors. This is due, as is obvious, to the free solar energy supply that helps amortize the hybrid. The forms of concentration include linear concentration such as trough parabolic concentrators, and point concentration such as disk parabolic concentrators. Software and codes for analysis of concentrating solar power. Parabolic trough solar collector technology is currently the most proven solar thermal collector technology.
Pdf parabolic trough concentrators for hot water generation. Potential of a parabolic trough solar concentrator for electric energy. Among the solar concentrators, parabolic dishes have the highest efficiency in the conversion of solar energy to electricity with an efficiency of 29. This mirror was combined with a 30 oz vacuum tube and raised 70f water to 212f in 14 minutes. Parabolic trough near harper lake in california front and back. The design and fabrication of parabolic trough solar water heater for water heating was executed.
Parabolic trough solar thermal electric power plants parabolic trough solar collector technology offers an environmentally sound and increasingly costeffective energy source for the future. A parabolic solar concentrator is a device that focuses light on a point to heat an object. Parabolic trough collector water heating efficient. Parabolic trough solar technology is the most proven and lowest cost largescale power technology available today, primarily because of the nine large commercials solar power plants that are operating in the california mojave desert.
Manual making of a parabolic solar collector gang xiao laboratoire j. Parabolic trough solar powered water heater v2 youtube. Parabolic trough plants collect the direct solar radiation in collectors consisting of parabolic trough mirror concentrators with a linear absorber tube. The initial installation cost of these parabolic trough solar collectors consti tutes the. 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. A solar thermal collector collects heat by absorbing sunlight. Performance evaluation of parabolic trough solar collector with solar. However, there are numerous studies which investigate alternative designs. Pdf advances in parabolic trough solar power semantic. The compound parabolic concentrator cpc is a highly interesting solar collector technology for different lowconcentration applications due to no tracking requirement.
Parabolic trough solar thermal electric power plants. Pdf heat transfer analysis and modeling of a parabolic. Mechanical design of a low cost parabolic solar dish. Pdf design of a parabolic trough solar collector using a. A wide variety of parabolic trough solar collector options are available to you, such as type, application, and pipe material. Solar energy for domestic and small industries with help of parabolic trough solar concentrator written by patoda lalit, parashar v. Such systems have high optical efficiencies and low startup losses leading to highly efficient solar energy engines. Pdf an overview on parabolic trough solar collectors. The conventional parabolic trough collectors are used in various applications of medium and hightemperature levels.
Flat plate versus evacuated tube solar collectors pdf. The term solar collector commonly refers to a device for solar hot water heating, but may refer to large power generating installations such as solar parabolic troughs and solar towers or non water heating devices such as solar air. Although many solar technologies have been demonstrated, parabolic trough solar thermal electric power plant technology represents one of the major renewable energy success stories of the last two decades. Abstract at present, parabolic trough technology is considered as the most low. This line is called the focal axis of the parabolic collector. The concentrated solar radiation impinging on the receiver of the collector is detected around the. Approach to designing a solar concentrator for smallscale remote. The skytrough is a high performance parabolic trough concentrating solar collector for use in. The procedure employed includes the design, construction and testing stages. Heat transfer analysis and modeling of a parabolic trough. This article offers an illustrated description of a method to produce a closed parabolic trough solar energy collector box based on the elasticity of the material. Experimental and numerical measurement of the thermal.
Parabolic trough concentrators for hot water generation. Solar concentrators an overview sciencedirect topics. Experimental and numerical measurement of the thermal performance for parabolic trough solar concentrators. The equipment which is made up of the reflector surface curved mirror, reflector support, absorber pipe and a stand. Wikipedia free encyclopedia 2010, solar thermal energy processes. Collector is designed with simple parabolic equations. Pdf parabolic trough concentrators for low enthalpy processes. The cpc with a tubular absorber is the most common type of cpc. A smallscale concentrated solar power csp unit was designed to provide. These pla developed by luz international limited and referred to as solar electric genera systems segs, range in size from 14 80 mw and represent 354 mw of. This type of tube is obviously simple and easily fabricated, but it is not optimal. Study of organic trust pdf a simple parabolic trough solar collector tested under the local. Diy solar tracking parabolic concentrator the story duration.
In a parabola all of the incoming rays from a light source in this case the sun are reflected back to the focal point of the parabola. Parabolic trough collector the energy of sunlight which enters the mirror parallel to its plane of symmetry is focused along the focal line, where objects are positioned that. Abstracteven though most variations of solar concentrators have palmistry guide in urdu pdf been studied or. Experimental study on a parabolic collector assisted solar desalting system.
The larger collector aperture area concentrates reflected direct solar radiation onto the smaller outer surface of the receiver tube. Parabolic trough solar collector pdf parabolic trough solar collector pdf download. Parabolic trough solar thermal electric power plants fact. What is described here is basically a manual method to make high efficiency solar collectors against very. In these plants, large fields of parabolic trough collectors supply the thermal energy used to produce steam supplied to a rankine steam turbinegenerator cycle to produce electricity. Solar heating parabolic trough solar collector parabolic. Designing a parabolic trough solar concentrator requires specifying. Parabolic trough collector an overview sciencedirect. A parabolic trough solar collector uses a mirror in the shape of a parabolic cylinder to reflect. In a solar cooker, for example, food is placed at the focal line.
Research article modeling and characteristic analysis of a. A parabolic trough solar collector uses stainless steel sheet in the shape of parabolic cylinder to reflect and concentrate sun radiations towards an absorber tube made of g. For example, food may be placed at the focal line of a trough. How to make a solar water heater using parabolic trough.
Solar collector in the shape of a parabolic mirror reflects the incident solar energy on the longitudinal axis of the solar collector. For nearly 150 years, the cross section of the heat collection tubes used at the focus of parabolic trough solar concentrators has been circular. Pdf radiometer for parabolic trough solar concentrators. Solar fire provides detailed plans and howto instructions for building three different sizes of concentrating solar collectors. If the said parabola is extended along an axis becoming a trough the solar rays are concentrated along a line through the focal point of the trough.
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