نتایج جستجو برای: power generation

تعداد نتایج: 806817  

1999
Kevin D. Jones Scott Davids Max F. Platzer

Numerical and experimental methods are described for the investigation of an oscillating-wing generator or wingmill. The numerical approach applies a previously developed, unsteady, in-compressible panel method incorporating a non-linear, deforming wake model to compute the unsteady ow about an airfoil undergoing speciied pitch and plunge motions. An experimental model is described which can du...

2013
Ajith Krishnan

Magnetohydrodynamic (MHD) power generation process is basically based on the physics background of space plasma. The basic principle is the Faradays Law of electromagnetic induction. In this device plasma (Ionized gas) is the working fluid similar to the mechanism that happening in the magnetosphere of our earth’s atmosphere. Except here the process is controlled and we increase the fluid densi...

2007
Tarjei Kristiansen

N power is defined as the controlled use of nuclear chain reactions to free energy for work, including momentum, heat, and the generation of electricity (Energy Information Administration, 2007). Nuclear power generation is currently limited to nuclear fission and radioactive decay; energy is generated when a sufficiently concentrated fissile material like uranium creates nuclear fission in a c...

2016
Avtar Singh

Renewable energy sources i.e., energy generated from solar, wind, biomass, hydro power, geothermal and ocean resources are considered as a technological option for generating clean energy. This paper presents the Solar-Wind hybrid Power system that harnesses the renewable energies in Sun and Wind to generate electricity. System control relies mainly on micro controller. It ensures the optimum u...

2005
Dipen N. Sinha Richard A. Benson

Department of Energy under contract W-7405-ENG-36. By acceptance of this article, the publisher recognizes that the U.S. Government retains a nonexclusive, royaltyfree license to publish or reproduce the published form of this contribution, or to allow others to do so, for U.S. Government purposes. Los Alamos National Laboratory requests that the publisher identify this article as work performe...

Journal: :the modares journal of electrical engineering 2010
mohsen simab g. r. yousefi

in trading electrical energy in deregulated power systems, violation of operation constraints such as transmission lines flow limits is possible. these conditions have been called “congestion”. one of the most important responsibility of independent system operator (iso) is congestion management in a manner that all the system equipments be operated in their nominal ranges. in this paper, usi...

M. R. Aghamohammadi,

This paper proposes a novel approach for generation scheduling using sensitivitycharacteristic of a Security Analyzer Neural Network (SANN) for improving static securityof power system. In this paper, the potential overloading at the post contingency steadystateassociated with each line outage is proposed as a security index which is used forevaluation and enhancement of system static security....

The benefits of wind power generation have led to an ever-increasing expansion of wind farms around the world. The low cost of production and the environmental benefits of wind farms are some of the main reasons for using wind energy. On the other hand, uncertainty costs in the production and control of the output of wind turbines are among the problems that are being encountered for electricit...

Journal: :تحقیقات اقتصادی 0
محمدعلی متفکر آزاد استاد دانشگاه تبریز محسن پورعبادالهان کویچ استادیار دانشگاه تبریز فیروز فلاحی دانشیار دانشگاه تبریز رضا رنج پور استادیار دانشگاه تبریز سکینه سجودی دانشجوی دکتری اقتصاد دانشگاه تبریز

the main objectives of this paper are measuring the technical efficiency of iranian thermal power plants and investigating the determinants of technical efficiency levels in these plants. stochastic nonparametric envelopment data (stoned) method applied to plant-level data over a period of thirteen years from 1999 to 2011. this is the first comprehensive analysis (to our knowledge) of technical...

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