The article discusses the feasibility of applying protrusions for round suns-skin, used to capture pollutants. boundaries vortex zones at entrance suction-squabbles with are found. dependences axial velocity suction air flow different lengths and angles inclination skin determined. Ill. 6. Ref. 23.

Micro-concentrator photovoltaic (CPV), incorporating micro-scale solar cells within concentrator modules, promises an inexpensive and highly efficient technology that can mitigate the drawbacks impede standard CPV, such as resistive power losses. In this paper, we fabricate multijunction designed for micro-CPV applications. A generic process flow, including plasma etching steps, was developed f...

The Centre for Sustainable Energy Systems (CSES) at The Australian National University, with Origin Energy, has developed a novel cell fabrication process for single crystal silicon PV. The Sliver® cell fabrication process produces narrow and long cells. With some modifications to the current fabrication process it is possible to produce Sliver® cells suitable for concentrator systems with low ...

Accelerated testing is a necessary tool in order to demonstrate the reliability of concentration photovoltaic solar cells, devices which is expected to be working not less than 25 years. Many problems arise when implementing high temperature accelerated testing in this kind of solar cells, because the high light irradiation level, at which they work, is very difficult to achieve inside a climat...

A high performance solar absorber using a 2D tantalum superlattice photonic crystal (PhC) is proposed and its design is optimized for high-temperature energy conversion. In contrast to the simple lattice PhC, which is limited by diffraction in the short wavelength range, the superlattice PhC achieves solar absorption over broadband spectral range due to the contribution from two superposed latt...

The aim of this work is to present a dedicated Solar Polygeneration System (PROTEAS System) for the simultaneous production of electricity, hot water and air-conditioning. The core of the PROTEAS System is the innovative setup of Total Internal Reflection Reflectors made of plastic (Primary Optical System), which concentrate the solar rays up to 5,000 suns, homogenized to 1,000 suns by speciall...

In the solar convection zone, rotation couples with intensely turbulent convection to build global-scale flows of differential rotation and meridional circulation. Our sun must have rotated more rapidly in its past, as is suggested by observations of many rapidly rotating young solar-type stars. Here we explore the effects of more rapid rotation on the patterns of convection in such stars and t...

A low cost, high flux, large area solar simulator has been designed, built and characterized for the purpose of studying optical melting and light absorption behavior of molten salts. Seven 1500 W metal halide outdoor stadium lights are used as the light source to simulate concentrating solar power (CSP) heliostat output. Metal halide bulbs and ballasts are far less costly per-watt than typical...