نتایج جستجو برای: energy generation
تعداد نتایج: 987955 فیلتر نتایج به سال:
geothermal energy because of its versatility has extensive applications in power generation, industry, agriculture, treatment of diseases etc: ...this source of energy has received great attention in recent years many countries in the world are benefiting from it. it possesses an eternal heat source and is pollution free. in this article it is tried to demonstrate the importance of georhermal e...
در طی سال های اخیر روند بسیار فزاینده ای در مصرف انرژی در سطح جهان به ویژه در بخش برق ایجاد گردیده که با توجه به حساسیت های جهانی در حفظ محیط زیست و کاهش انتشار گازهای گلخانه ای، منجر به کاربرد سایر منابع غیرفسیلی تولید برق همچون انرژی های تجدید پذیر (باد، برق آبی و خورشیدی) و نیز انرژی هسته ای شده است. عوامل متعددی درانتخاب گزینه مناسب از بین منابع متعدد تولید برق دارای اهمیت می باشند که از آن...
Entropy generation due to viscous incompressible MHD forced convective dissipative fluid flow through a horizontal channel of finite depth in the existence of an inclined magnetic field and heat source effect has been examined. The governing non-linear partial differential equations for momentum, energy and entropy generation are derived and solved by using the analytical method. In addition; t...
Abstract: In traditional generation systems, energy from fuel is simply converted into electrical energy, while in the combined heat and power (CHP) systems, fuel energy, in addition to generating electricity, also generates thermal energy. Therefore, the efficiency of these systems is considerably higher than traditional systems, and this justifies the need for CHP systems. The emergence of CH...
climatological study of the mid-latitude storm tracks was investigated using the daily global forecast system (gfs) and the national centers for environmental prediction (ncep) reanalysis data sets from 1948 to 2008 winter seasons. in anomalous winter 2007-2008, decreasing of eddy kinetic energy along with the reduction of eddy available potential energy upstream of atlantic storm track are rel...
Energy supply is one of the main challenges of the present century. Population growth, rising energy demand, fossil fuel scarcity, and environmental concerns have made energy security as major issue for all countries in the world. Traditional power system, including low-efficiency generation, long-distance transmission and then a complex distribution system, face various challenges that make it...
Nowadays required energy mostly comes from fossil fuels but the limitation of fossil resources and their environmental effects have encouraged communities to seek alternative renewable energy sources. Meanwhile enery forom biomass (bioenergy) has particular importance due to wide range of resources and other advantages. In this research, a multi-objective model is proposed to design a bioenergy...
this paper describes a study that starts with an analysis of typical energy demand profiles in a hospital setting followed by a case study of a combined cooling, heating, and power (cchp) generation system.cchp is an autonomous system that combines the generation of electrical, heating, and cooling energy.the driving units are two high-efficiency gas engines that produce electrical and heat ene...
abstract in this paper, a fuzzy pid with new structure is proposed to solve the load frequency control in interconnected power systems. in this study, a new structure and effective of the fuzzy pid-type load frequency control (lfc) is proposed to solve the load frequency control in interconnected power systems. the main objective is to eliminate the deviations in the frequency of different area...
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