Nparabolic trough solar concentrator pdf

Through a polished stainless steel parabolic dish, solar radiation is concentrated into a specific area called focus, where thermal energy is generated and is used. Manual making of a parabolic solar collector gang xiao. The parabolic trough concentrator ptc is a solar concentration. Parabolic trough collector cost update for the system. The basic design of the closed collector is given in section 2. Heat transfer analysis and modeling of a parabolic trough.

Mechanical design of a low cost parabolic solar dish. Abstract at present, parabolic trough technology is considered as the most low. This paper is based upon an experimental study of two different parabolic trough collectors which have been designed, fabricated and evaluated to derive a comparison between their performances, in producing hot water, by using a black coated receiver. Design, construction, and test of a miniature parabolic trough solar concentrator. The operating temperature of the system is in the range of 500700k and the geometric concentration ratio of the parabolic trough system is in the range of 30100 table 8. Numerical modelling of a parabolic trough solar collector. Heat transfer analysis and modeling of a parabolic trough solar receiver implemented in engineering equation solver abstract this report describes the development, validation, and use of a heat transfer model implemented in engineering equation solver ees. Pdf parabolic trough concentrators for low enthalpy processes. In this work, the potential for a solarthermal concentrator to produce steam has been studied. The angle between a direct ray from the sun and the aperture plane of the parabolic trough collector defined to be 0 degrees. Parabolic trough solar concentrating systems are an advanced and matured technology. Abengoa solar parabolic trough collector technology.

Modeling and experimental investigation of parabolic trough solar collector. Practical field alignment of parabolic trough solar concentrators. 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. Comparison with conventional parabolic trough concentrators.

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. Compared with parabolic dish concentrators, practical optical alignment techniques for the accurate alignment of parabolic troughs have not been developed. Experimental and numerical measurement of the thermal. Design and construction of a solar collector parabolic dish. 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. Enhanced efficiency of a parabolic solar trough system through use of a secondary radiation concentrator p. Potential of a parabolic trough solar concentrator for electric energy. Parabolic trough collector is a viable technology for harnessing solar energy for industrial process heat in cyprus 58. Modeling and experimental investigation of parabolic trough solar. To study the behavior of a solar parabolic trough concentrator ptc and to. This report updates the baseline cost for parabolic trough solar fields in the united states. Experimental and numerical measurement of the thermal performance for parabolic trough solar concentrators.

Hybrid solar thermal power plants with parabolic trough type of solar. Ferrer introduction the current worldwide trend is towards finding alternative. Pdf fabrication of parabolictrough concentration for. Parabolic trough solar collectors utilize a heat transfer fluid htf that flows through the receiver collecting and transporting solar thermal energy to the power.

Torque tube design able to achieve good optical accuracy. The receiver absorbs the incoming radiations and transforms them into thermal energy. These concentrators are modular with solar collection areas around 2. 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. Optical and thermal modeling of parabolic trough concentrator systems. Three parabolic trough solar concentrators ptscs of dimensions. Pdf parabolic trough concentrators for hot water generation. The model determines the performance of a parabolic trough solar.