This paper presents a new systematic approach to analyze all possible array configurations in order to determine the most optimal dense-array configuration for concentrator photovoltaic (CPV) systems. The proposed method is fast, simple, reasonably accurate, and very useful as a preliminary study before constructing a dense-array CPV panel. Using measured flux distribution data, each CPV cells'...

Solar energy is a long-established technology, which has zero CO2 emissions, and provides low-cost for given area of land. The concentrator photovoltaic (CPV) been preference over the due to its high efficiency. In CPV system, most solar cell replaced with an optical concentrator. Various parabolic trough based systems have presented where concentration <300 achieved. current research, desig...

We present modeled results of the luminous and color outputs of a three-layer stack of fluorescent planar concentrators (FPCs). FPCs have the potential to provide sufficient luminous output to illuminate moderate-sized rooms for reasonably-sized collecting areas. It is of course necessary not only that the lumens be sufficient, but also that the light be sufficiently white as to be comfortable....

Influence of the Graded Index Cholesteric Liquid Crystal Reflectors on Luminescent Solar Concentrator Efficiency

An upstream ultrafiltration (UU) method is employed for the on-line concentration of collected particle fraction and for the convenient regulation of flow rates in split-flow thin (SPLITT) fractionation. Concentration of the collected particle fraction is necessary to fractionate particles by smaller cutoff diameters in SPLITT fractionation. By introducing a simple device utilizing upstream ult...

In the last two decennia the stationary oxygen concentrator has been the most cost effective oxygen source for most patients using long-term oxygen therapy (LTOT). In most countries the oxygen concentrator has, therefore, largely replaced stationary oxygen cylinders with a volume of 10 litres or more. The oxygen concentrator is very convenient and safe for home use. However, for patients needin...

the aim of this research work was to investigate on the ball filling estimation of miduk semi-autogenous (sag) mill via an utilized method. miduk copper concentrator is located in kerman province, iran, and its size reduction stage includes one gyratory crusher which feeds one sag mill (9.75 dia.(m)*3.88 length(m)) following two parallel ball mills (5dia.(m)*7lenght(m)). after sag mill, a tromm...