The central element of the box design is a 12m long steel spaceframe structure having a squared cross section that holds the support arms for the parabolic mirror facets. The objective of this study is to develop analytical expressions for the determination of the thermal performance of parabolic trough collectors. Parabolictrough collector, energy, solar coordinates, thermal efficiency, meteorological and radiative. Pdf design and construction of a parabolic trough solar. Eurotrough parabolic trough collector developed for. Modelling of solar thermal power plant using parabolic.
Parabolic trough collector overview notes on a bit of history, development after luz, and a recent surge in trough collector technology offerings dr. Design and analysis for 1mwe parabolic trough solar collector. This solar technology is applied in many applications and so its investigation is common. A parabolic trough is a type of solar thermal energy collector used in csp plants concentrated solar power. It points out the types of situations where parabolictrough solar water heating is most likely to be cost effective and describes the espc process available to federal facilities for parabolictrough projects. The operating temperature of the system is in the range of 500700k and the geometric concentration ratio of the parabolictrough system is in the range of 30100 table 8. Design, construction, and testing of a parabolic trough. Proceedings of the asme 2008 international design engineering technical conferences and computers and information in engineering conference. The fundamental characteristics of the performance of a parabolic trough solar collector are its concentration ratio and its optical efficiency. The parabolic trough reflector is a solar energy collector designed to capture the suns direct solar radiation over a large surface area and focus. The efficiency and cost of the parabolic trough collector designs is influenced by structural stiffness, choice of materials, assembly tolerances, mirror cleanliness and wear. Parabolic trough collector cost update for the system advisor. In the design it was considered the parabolic aperture of 0. A vast area will be economically unreasonable whereas a small area will mainly.
Pdf design analysis of solar parabolic trough thermal. Recent studies that analyze the deployment of solar. The parabolic trough collector is one of the most developed solar concentrating technologies for medium and high temperatures up to 800 k. Design and fabrication of parabolic solar collector mechanical project abstract solar energy is a renewable source of energy. Note that the parabolic trough collector optical performance depends on the diameter of the hce, which was varied during optimization. Cad modeling of the collector unit the parabolic trough collector is modeled in dassault systemes solidworks 18 software.
Parabolictrough collector is a viable technology for harnessing solar energy for industrial process heat in cyprus 58. The procedure employed includes the design, construction and testing stages. The design was done using computeraided design and manufacturing. Design and fabrication of solar cylindrical trough collector. The parabolic trough reflector is a solar energy collector designed to. Pdf parabolic trough solar collector design, construction and. The currently dominant design of parabolic trough for solar power plants is. In 1907, the germans wilhelm meier and adolf remshardt obtained the first patent of parabolic trough technology. The parabolic shaped mirrors are constructed by forming a sheet of reflective material into a parabolic shape that concentrates incoming sunlight onto a central receiver tube at the focal line of the collector.
For example the skytrough utilizes single, lightweight reflector panels that slide into place, rather than the previous reference trough design. Parabolic trough collector cost update for the system. The ptc is made of aluminium in such a way that both the manufacturing and assembly processes do not require complicated technology or skilled labour. The design and fabrication of parabolic trough solar water heater for water heating was executed. Study of organic trust pdf a simple parabolic trough solar collector tested under the local. Thermal analysis procedure of a solar parabolic trough collector design starts with the selection of certain parameters such as aperture area and diameter of receiver to obtain the geometric.
Collector is designed with simple parabolic equations. Flatplate collectors are not appropriate for these high temperatures. We would like to acknowledge the contributions of the core team that helped organize the roadmapping workshop and further developed the strategy that emerged from the workshop. Simplified methodology for designing parabolic trough. The authors believe that the parabolictrough technology roadmap represents an important milestone in helping to advance the state of parabolictrough technology. The parabolic trough collectors ptc consist of solar collectors mirrors, heat receivers and support structures. The authors believe that the parabolic trough technology roadmap represents an important milestone in helping to advance the state of parabolic trough technology. Design and fabrication of parabolic solar collector. Design and fabrication of parabolic trough solar water. The initial installation cost of these parabolic trough solar collectors consti. Sep 12, 2012 this paper reports the design, construction, and evaluation of a solar parabolic trough concentrator ptc with a rim angle of 45, a length of 4. Analytical expression of parabolic trough solar collector.
The geometric parameters of a ptc are its aperture width and length, rim angle, focal length, diameter of the receiver diameter of the glass envelope and the concentration ratio. The trough is parabolic along one axis and linear in the orthogonal axis. The enhancement increased the capacity of the tube to absorb solar energy by improving the convective transfer between the inner surface of the absorber tubes and the heat. Parabolic trough power plants use parabolic trough collectors to concentrate the. The results of the evaluation to determine the thermal performance of the parabolic trough collector have a maximum outlet temperature of 47. Since the ptc is for low enthalpy steam generation and hot. Parabolic trough collectors are a low cost implementation of concentrated solar power technology that focuses incident sunlight onto a tube filled with a heat transfer fluid. Thomas ruegamer molten salt for parabolic trough applications. To build the base of the solar collector two partial triangles were cut from the remaining plywood. Main input parameters table 3 shows input parameters for three of the cases. Description the objective of the present work is to design, develop and investigate the performance of a ptc for hot water generation system.
Design of solar fields with parabolic trough collectors. Design, construction, and test of a miniature parabolic. Near term collector phoenix spaceframe design reduced solar field cost by 10% aluminum and steel versions allow commodity hedge against metal prices development effort created new design, analysis and testing. They identified aluminium sheet as cost effective material to use as reflector. Design, construction and evaluation of parabolic trough collector. Eurotrough parabolic trough collector developed for cost.
Systems with light structures and low cost technology for process heat application up to 400 8c could be obtained with parabolic through collectors. The 2 by 4 was attached to the rectangular base of the parabolic frames with three 2 inch screws on each side. Development of simulation and design methodology for parabolic trough and parabolic dish the objective of the task one is to develop a simulation and design methodology for the parabolic trough and parabolic dish based technologies for florida conditions. Design and fabrication of solar cylindrical trough. Energy equations for computation of parabolictrough. Pdf in this paper are presented the results of designing a parabolic trough solar collector ptsc, and its application in a solar thermal system for. Design and fabrication of parabolic trough solar water heater. A vast area will be economically unreasonable whereas a small area will mainly cause. Thestages of design, modeling, and evaluation of a parabolic trough collector ptc for heating water as a demonstrative prototype are presented.
In different areas concerning the amount of solar radiation, their standard size is approximately between 20 and 100 mwe. Design, construction and evaluation of parabolic trough. Design parameters the design parameter of a parabolic trough collector can be classified as geometric and functional. The reflector, which concentrates the sunlight to a focal line or focal point, has a parabolic shape. Smallsized parabolic trough collector system for solar.
Nowadays, parabolic trough solar thermal plants are prevalent around the world. Different ways to couple a parabolic trough solar field with an industrial process. The equipment which is made up of the reflector surface curved mirror, reflector support, absorber pipe and a stand. It is sustainable since it cannot be depleted in a time relevant to the human race. The test facility design allows study of the optical performance independent of the receivers heat loss characteristics. The torque box is built out of only 4 different steel parts. Design, simulation and manufacturing of an integrated. In concentrating solar power technology, the optical efficiency of solar. The model determines the performance of a parabolic trough solar collector s linear receiver, also called a heat collector element hce. Parabolic trough collectors are typically used in active, indirect water heating systems. Design and analysis for 1mwe parabolic trough solar. The current study presents a numerical and realtime performance analysis of a parabolic trough collector ptc system designed for solar airconditioning applications. Parabolic trough collector, a novel design for domestic. What are central parameters in the design of a parabolic trough power plant.
The parabolicshaped mirrors are constructed by forming a sheet of reflective material into a parabolic shape that concentrates incoming sunlight onto a central receiver tube at. Pdf design analysis of solar parabolic trough thermal collectors. A parabolic trough is a one dimensional parabola that focuses solar energy onto a line. This paper presents the design, construction and investigates an experimental study of a parabolic trough solar collector. Optical efficiency is a direct gauge of the design elements that set the skytrough apart. Parabolic trough collector, a novel design for domestic water. Featuring a reduced collector weight and profile at onethird the size of a traditional parabolic trough, the soponova offers a modular design which delivers seamless integration between solar field and existing components. Parabolic trough collector, energy, solar coordinates, thermal efficiency, meteorological and radiative. An attempt is made in this project to develop a parabolic trough collector for water heating more effectively as compared to the flat plate collector. The various components are the parabolic trough, vertical side panels for absorber tube support, ribs for trough support and shape, and flange panels for photovoltaics fig. It points out the types of situations where parabolic trough solar water heating is most likely to be cost effective and describes the espc process available to federal facilities for parabolic trough projects. An innovative receiver design for a parabolic trough solar. Parabolic trough reflector provides a better alternative way in order to generate higher temperatures with better efficiency. Sep 03, 2010 the test facility design allows study of the optical performance independent of the receivers heat loss characteristics.
Manual making of a parabolic solar collector, gang xiao, laboratoire j. The cylindrical parabolic collector is also referred to as a parabolic trough collector or a linear parabolic collector. Design and fabrication of a parabolic trough collector and. Each design whether a basic blackened flat panel collector or a more advanced evacuated tube collector all have their own advantages and disadvantages. Federal technology parabolictrough solar alert water heating. The main objective of this research work is to develop a simplified design procedure of a parabolic trough solar field for a specific thermal load. Thermal output patterns of designed solar field, under local environmental conditions, have been obtained through. In steam analysis, we have found steam flow rate, inlet temperature of collector, heat required per.
Then, an experimental ptc system setup is established with a concentration ratio of 9. Design of a parabolic trough solar collector using a. Design and analysis for 1mwe parabolic trough solar collector plant based on dsg method. In spain, there are three power plants namely andasol 1, andasol 2 and andasol 3 that are being operated using parabolic trough collector technology with a capacity of 50 mw each. University of south florida design, construction and.
Certainly, the right size of the solar field is the first selection with regard to nominal electrical power. For evaluation of this designed output have done thermal analysis of steam cycle. Heat transfer analysis and modeling of a parabolic trough. In addition, sidebars provide indicators that a system. Parabolic trough power plants use a curved, mirrored trough which reflects the direct solar radiation onto a glass tube containing a fluid also called a receiver, absorber or collector running the length of the trough, positioned at the focal point of the reflectors. Nov 25, 2010 a parabolic trough collector it is a principle of geometry that a parabolic reflector pointed at the sun will reflect parallel rays of light to the focal point of the parabola. Design of a 25 mwe solar thermal power plant in iran with. Its uses do not contribute to emission of greenhouse gases and other pollutants to the environment. Parabolic trough collectors ptc are frequently used for steam generation. Simplified methodology for designing parabolic trough solar. A new technique was proposed and implemented through an experimental model to improve the absorber tube of a parabolic trough collector, which was connected to a twisted tube and resulted in a heat transfer enhancement. Parabolictrough solar concentrating systems are an advanced and matured technology. The enhancement increased the capacity of the tube to absorb solar energy by improving the convective transfer between the inner surface of the absorber tubes and.
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