Estimation of solar energy potential of a region requires detailed solar radiation climatology, and it is necessary to collect extensive radiation data of high accuracy covering all climatic zones of the region. In this ...

Over 70 of the planetary surface are covered by water and from whish 97.5% is salted water and thus is improper for human, in industrial and agriculture use. Soft water represents only, 2% of existing water. Solar ...

The electrical current generated by the solar cells is very sensitive to the incident spectral distribution and intensity. This distribution varies greatly during the day due to changes in the sun’s position or weather ...

The component elements of the field effect transistors can be grouped into two distinct categories. Extrinsic elements representing different access structures such as parasitic resistances Rs and Rb Among the intrinsic ...

The Zinc sulfide belongs to group II-VI compound semiconductor materials. ZnS is a very important semiconductor material with a large optical gap (> 3.5 eV), a large utility in thin-film devices, such as photoluminescent ...

Maximum power point tracking (MPPT) must usually be integrated with photovoltaic (PV) power systems so that the photovoltaic arrays are able to deliver the maximum power available. This paper proposes two methods of ...

This study concernsanumerical simulationofthree-dimensionalconjugateheat transferin ahorizontal pipe heatedby Joulean effectthroughits entire thickness.The mixed convection in the fluid domain is combined with heat ...

The study and use of nanostructured materials experiencing considerable growth due to their special properties. All major types of materials are concerned: metals, ceramics, dielectrics, magnetic oxides, polymers, etc. ...

The development of the tunnel junction interconnect was key to the development of the first two-terminal monolithic, multi-junction solar cell. In this paper describes a simulation for the tunnel junction (AlGaAs) between ...