نتایج جستجو برای: electrical energy
تعداد نتایج: 831124 فیلتر نتایج به سال:
a one dimensional dynamic model for a riser reactor in a fluidized bed catalytic cracking unit (fccu) for gasoil feed has been developed in two distinct conditions, one for industrial fccu and another for fccu using various frequencies of microwave energy spaced at the height of the riser reactor (fccu-mw). in addition, in order to increase the accuracy of component and bulk diffusion, instanta...
Sources of electrical energy for industry, agriculture or military use are different with respect to the purpose, place, sort of appliance, type of supplied systems. Fixed military facilities, for example, bases and camps are supplied by common electrical network system. Uninterruptible power sources are used to span short network black-outs and to maintain the power quality supplied to compute...
electrical sensitivity of a beryllium oxide nanotube (beont) was examined toward (c4h5n) molecule by using density functional theory (dft) calculations at the b3lyp/6-31(d) level, and it was found that the adsorption energy (ead) of pyrrole on the pristine nanotubes is a bout -48.58kcal/mol. but when nanotubes has been doped with s and p atomes , the adsorption energy changed. calculation sho...
Fuel cells have the potential to provide environmentally-friendly sources of energy for transportation, portable, and stationary applications. Because fuel cells convert chemical energy directly to electrical energy, high efficiencies can be realized. Production of electrical power from fuel cells has several other advantages. There are no moving parts. Fuel cells operate noiselessly with no fr...
In this paper, the electrical consumption of a Research Center Building is derived of the bills, Then with defining of fuzzy Bus Thermal Coefficient objective function for heating, the amount of available heat selling to Research Center Building consumer that is produced by Biomass Solar Hybrid Source is calculated. With the capacity determination of Biomass Solar Hybrid Source to provide Therm...
By the recent growing of global trend for decentralized power generation via natural gas, the interest in joint operation of several energy carriers has substantially increased. The most significant concept in this regard is the "Energy Hub", which in this paper is employed to supply electrical and heat demands via electricity and natural gas carriers. Transformers, furnaces, combined...
In the Railgun which is used to accelerate objects, electrical energy is used to drive the system. In order to reach hypervelocities, a power supply with immense amount of energy must be used which causes an extra ordinary current on the rail and the armature. This current makes thermal energy by the ohmic attenuation and warms up various points and therefore changes the electrical, thermal and...
In this paper, a new strategy based on a dynamic (time-based) model is proposed for expansion planning of electrical energy distribution systems, taking into account distributed generation resources and advantage of the techno-economic approach. In addition to optimal placement and capacity, the proposed model is able to determine the timing of installation / reinforcement of expansion options....
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