نتایج جستجو برای: reducing of electrical energy
تعداد نتایج: 21258159 فیلتر نتایج به سال:
Cloud computing is a result of the continuing progress made in the areas of hardware, technologies related to the Internet, distributed computing and automated management. The Increasing demand has led to an increase in services resulting in the establishment of large-scale computing and data centers, in addition to high operating costs and huge amounts of electrical power consumption. Insuffic...
electrical sensitivity of a boron nitride nanotube (bnnt) was examined toward c2h5oh molecules by using density functional theory (dft) calculations . it was founding that the adsorption energy(ead) of ethanol on the pristine nanotubes is about -51.5 kj / mol, but when the nanotube has been doped with si and al atoms , the adsorption and recovery time changed and the sensitivity of nano...
The provision of both electrical and mechanical energy services can play a critical role in poverty alleviation for the almost two billion rural users who currently lack access to electricity. Distributed generation using diesel generators remains a common means of electricity provision for rural communities throughout the world. Due to rising fuel costs, the need to address poverty, and conseq...
Utilization of combined heat and power (CHP) systems that simultaneously fulfill the electrical and heating energy needs is considered as an effective strategy for management of energy demand and consumption. Overall operational efficiency in excess of 70% is made possible, when these systems are utilized, and it is expected that needs for both the demand and supply sides are met even under ...
in reality, most structures involved in geotechnical engineering are three dimensional in nature, and although in many, plane strain or axisymmetric approximations are reasonable, there are some, for which 3-d treatment is required. the quantity of data, and the size of the various vectors and matrices involved in such analysis, increase dramatically. this has sever implications for computer r...
The solar radiation energy is one of the clean, essential and renewable resources for future. Iran, having 300 annual sunny days, has such intrinsic potential and thermosyphon solar-electrical water heaters (TSEWH) are the simplest solar-thermal convertors. Despite their unique merits, they can not supply hot water for domestic applications during cold period, so, an auxiliary backup system suc...
according to research, between 15 to 20 percent of the total energy consumption of every country is used for residential spaces. this amount is explanatory of the high cost and will follow the destruction of natural resources and environmental demolition. the aim of this research is to recognize earth thermal ability and its usage in public buildings and especially in private buildings in order...
This paper presents an energy management strategy to supply residential load by hybrid fuel cell power plant (FCPP). Economical fuel cell (FC) model includes thermal load, local electrical load, operational cost, startup cost and different tariffs on electricity during the day hour is discussed. Several Strategies have been presented for supplying residential load (electrical and thermal loads...
The main share of energy consumption in the country and more than a third of its loss is in residential use. Per capita, household electricity consumption is far from the world standard, and the existence of subsidies for energy carriers in Iran, and consequently their low prices, causes occupants to pay less attention to energy consumption. Due to the policy of eliminating subsidies, the effec...
Output power in a hybrid power system is constant while the input power with variable characteristics that is generated by different sources. Using Hybrid Electrical Energy Storage (HEES) systems, is growing rapidly since there is an obvious need for clean energy. This paper introduces different parts of a HEES system and then proposes HEES systems which employ battery, ultracapacitor and f...
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