The concentrating photovoltaic/thermal (PVT) collectors offer the benefits of reduced per-unit price electrical energy and co-generation thermal energies by intensifying solar irradiation falling on hybrid receiving plane. compound parabolic (CPC) have appeared as a promising candidate for numerous applications in field due to their ability collect both direct diffuse radiation suitability stat...

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This paper is about the researches conducted in the fields of development of prismatic stationary concentrators of solar energy and design of photovoltaic modules on their base. The developed concentrators and modules can be used with the silicon solar cells. The modules can be installed stationary without tracking systems. This paper shows the results of researching and development of the two ...

This article examines the features of solar energy concentrators. The characteristics currently existing types concentration systems are given: a weak system and high system. Their design shortcomings given. It is noted that Frenel lenses one most widely used concentrators, but their optical efficiency limited by low or temperatures, as change in refractive index deformation lens structure obse...

Photovoltaic solar energy has emerged in Brazil distributed generation due to affordable costs and its application different segments of the market. However, electric storage photovoltaic systems is only viable for certain conditions which installation does not have access electricity network thermal portion lost ambient. Heliothermic power plant represents another system available generation, ...

The organic Rankine cycle (ORC) is an effective technology for power generation from temperatures of up to 400 °C and capacities 10 MWel. use solar irradiation driving ORC a promising renewable energy-based due the high compatibility between operating thermal collector technologies temperature needs cycle. objective this review paper present discuss operation principles solar-ORC wide range sys...

Lifang Li Ph.D. Candidate School of Mechatronics Engineering Harbin Institute of Technology 150001 Harbin, China. [email protected] Steven Dubowsky Professor Department of Mechanical Engineering Massachusetts Institute of Technology Cambridge, 02139 MA. [email protected] Abstract Large parabolic dish concentrator mirrors are an important component of many solar energy systems. They need to ...

In present work a compound holographic system consisting of a diffraction grating and a holographic lens has been fabricated to disperse and focus different portion of solar spectrum on laterally arranged solar cells of different band gaps to achieve maximum efficiency operation. Such concentrators are light–weight, low-cost and do not require tedious processing for their mass production.