Potential of a parabolic trough solar concentrator for electric energy. This mirror was combined with a 30 oz vacuum tube and raised 70f water to 212f in 14 minutes. 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. The initial installation cost of these parabolic trough solar collectors consti tutes the. 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. This is due, as is obvious, to the free solar energy supply that helps amortize the hybrid. Article information, pdf download for performance evaluation of parabolic trough solar collector with. Parabolic solar concentrator glass envelope receiver ermal oil f. Diy solar tracking parabolic concentrator the story duration. Approach to designing a solar concentrator for smallscale remote. 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.
Solar heating parabolic trough solar collector parabolic. Pdf heat transfer analysis and modeling of a parabolic. Parabolic trough near harper lake in california front and back. 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. Parabolic trough solar collector pdf basically a manual method to make high efficiency solar collectors against very low cost, which is. The compound parabolic concentrator cpc is a highly interesting solar collector technology for different lowconcentration applications due to no tracking requirement. Collector is designed with simple parabolic equations. Software and codes for analysis of concentrating solar power. 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. A simple stainless steel parabolic trough mirror that produces a near perfect linear beam. The equipment which is made up of the reflector surface curved mirror, reflector support, absorber pipe and a stand. Parabolic trough solar thermal electric power plants fact.
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. Parabolic trough solar thermal electric power plants parabolic trough solar collector technology offers an environmentally sound and increasingly costeffective energy source for the future. Pdf design of a parabolic trough solar collector using a. Abstract at present, parabolic trough technology is considered as the most low. Parabolic trough solar thermal electric power plants. Abstract this paper was concerned with an experimental study of parabolic trough concentrator designed and constructed.
A free download of soltrace is available at the following website. Manual making of a parabolic solar collector gang xiao laboratoire j. 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. Performance evaluation of parabolic trough solar collector with solar. Such systems have high optical efficiencies and low startup losses leading to highly efficient solar energy engines. Jaramillo and others published parabolic trough concentrators for low enthalpy processes find, read and cite all. 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. Pdf advances in parabolic trough solar power semantic. The conventional parabolic trough collectors are used in various applications of medium and hightemperature levels. How to make a solar water heater using parabolic trough. A parabolic trough is a one dimensional parabola that focuses solar energy onto a line. Abstracteven though most variations of solar concentrators have palmistry guide in urdu pdf been studied or.
A parabolic solar concentrator is a device that focuses light on a point to heat an object. 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. In this video new physicist shows you how to build a high efficient solar water heater using zinc sheet and copper pipe. Study of organic trust pdf a simple parabolic trough solar collector tested under the local. 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.
Solar energy for domestic and small industries with help of parabolic trough solar concentrator written by patoda lalit, parashar v. 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. This line is called the focal axis of the parabolic collector. Designing a parabolic trough solar concentrator requires specifying. Solar heating parabolic trough solar collector parabolic solar concentrator made in china, find complete details about solar heating parabolic trough solar collector. Solar collector in the shape of a parabolic mirror reflects the incident solar energy on the longitudinal axis of the solar collector. Mechanical design of a low cost parabolic solar dish. The concentrated solar radiation impinging on the receiver of the collector is detected around the. Research article modeling and characteristic analysis of a. The forms of concentration include linear concentration such as trough parabolic concentrators, and point concentration such as disk parabolic concentrators. 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. Parabolic trough collector ptc is the most established solar concentrating technology worldwide. Pdf radiometer for parabolic trough solar concentrators. Experimental study on a parabolic collector assisted solar desalting system.
A solar thermal collector collects heat by absorbing sunlight. Optimal heat collection element shapes for parabolic. This type of tube is obviously simple and easily fabricated, but it is not optimal. Keywords parabolic trough solar collector, solar tracking tilt sensor. Solar fire provides detailed plans and howto instructions for building three different sizes of concentrating solar collectors. Heat transfer analysis and modeling of a parabolic trough solar collector. The cpc with a tubular absorber is the most common type of cpc. The design and fabrication of parabolic trough solar water heater for water heating was executed. Parabolic trough concentrators for hot water generation. 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. Experimental and numerical measurement of the thermal.
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. I pipe located at the focus line of the parabolic trough collector. Wikipedia free encyclopedia 2010, solar thermal energy processes. However, this concentrator technology is facing a significant challenge to increase its overall. Pdf parabolic trough concentrators for low enthalpy processes. A parabolic trough solar collector uses a mirror in the shape of a parabolic cylinder to reflect. Parabolic trough solar concentrators will be considered in. The parabolic trough pt is the most used concentrator in csp concentrated solar power. Energy supply and solar resource potential each year, the united states is becoming more dependent on foreign sources of energy. A fluxmeter for parabolic trough solar concentrators is described.
Pdf parabolic trough concentrators for hot water generation. The procedure employed includes the design, construction and testing stages. The larger collector aperture area concentrates reflected direct solar radiation onto the smaller outer surface of the receiver tube. Parabolic trough solar collector technology is currently the most proven solar thermal collector technology. What is described here is basically a manual method to make high efficiency solar collectors against very. However, there are numerous studies which investigate alternative designs. Parabolic trough solar collector pdf parabolic trough solar collector pdf download.
Parabolic trough solar powered water heater v2 bruce snyder. A smallscale concentrated solar power csp unit was designed to provide. Pdf an overview on parabolic trough solar collectors. Among the solar concentrators, parabolic dishes have the highest efficiency in the conversion of solar energy to electricity with an efficiency of 29. 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 water heating efficient. 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. Alternative designs of parabolic trough solar collectors. Parabolic trough collector an overview sciencedirect. Design and fabrication of parabolic trough solar water.
Parabolic trough solar powered water heater v2 youtube. The skytrough is a high performance parabolic trough concentrating solar collector for use in. Heat transfer analysis and modeling of a parabolic trough. In a solar cooker, for example, food is placed at the focal line. Parabolic trough plants collect the direct solar radiation in collectors consisting of parabolic trough mirror concentrators with a linear absorber tube. For nearly 150 years, the cross section of the heat collection tubes used at the focus of parabolic trough solar concentrators has been circular. This is primarily due to the nine plants operating in californias mojave desert since the mid1980s. Performance evaluation of solar parabolic trough collector. Experimental and numerical measurement of the thermal performance for parabolic trough solar concentrators. 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. For example, food may be placed at the focal line of a trough. 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. This gives the parabolic dishes the potential to eventually. 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.
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