This paper gives in simulation details the effect of switching sequence generation (PWM) on the ultimate wave-shape of the sinusoidal output produced from a constant voltage assumed to be from solar generation. The circuit, consisting of inductive elements, is associated with the issue of fly-back spikes generation when the circuit is switching circuit. The issue of spike generation is explaine...

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Solar parabolic concentrating collectors are widely and efficiently used in electrical generation. They were experimentally validated in worldwide pioneer plants. SEGS-VI 30 MW solar power plant built in southern California is one of these plants that was commissioned many years ago. In this work a possibility of installing such plant in Makkah, 21.4 °N located in moderate latitudes is studied....

The current interpretation of the solar neutrino problem in terms of MSW or vacuum oscillations depends signiicantly on the absolute neutrino uxes, i.e., on solar model calculations. However, second-generation experiments such as SuperKamiokande, SNO, and Borexino, will be able to test these neutrino oscillation solutions independently of solar models. We discuss the theoretical estimates and t...

Energy is one of the building blocks of modern society. The growth of the modern society has been fueled by cheap, abundant energy resources. Since the Industrial Revolution, the world concentrated on fossil fuels to provide energy needed for running factories, transportation, electricity generation, homes and buildings. In parallel to the increase in the consumption of energy, living standards...

alfvén waves dissipation is an extensively studied mechanism for the coronal heating problem. these waves can be generated by magnetic reconnection and propagated along the reconnected field lines. here, we study the generation of alfvén waves at the presence of both steady flow and sheared magnetic field in the longitudinally density stratified of solar spicules. the initial flow is assumed to...

Clean and sustainable renewable energy technology is going to take responsibility of energy supply in electrical power systems. Using renewable sources improve the environment and reduce dependence on oil and other fossil fuels. In distribution power system, utilizing of wind and solar DGs comprises some advantages; consist of loss and emission reduction, and also improvement of voltage profile...

In this research, the thermodynamic investigation of the tri-generation system is performed by the first and second law of Thermodynamics. The trigeneration system under study consists of three subsystems including the solar subsystem, Kalina subsystem and lithium bromide-water absorption chiller subsystem. The proposed system generates power, cooling and hot water using solar energy. The syste...