نتایج جستجو برای: net energy and fossil energy ratio fer
تعداد نتایج: 16971760 فیلتر نتایج به سال:
energy consumption is very high in greenhouses mainly due to off-season production. the main source of its energy supply is fossil fuels. due to the disadvantages of fossil fuels consumption and preventive laws in the incoming years, study on reducing consumption and replacing a part of them with renewable energy is essential. in this research, a solar heating system, equipped with a concentrat...
Indigenous architecture is derived from nature, climate and the environment, and due to limited access to modern fossil energy sources, has tried to have the least degree of dependence on them. Imitating the indigenous architecture of a region is the first and most sustainable step in designing climate-friendly architecture. The Housing Foundation of the Islamic Revolution, as the main organiza...
Developments in today's world in the light of the world's industrialization, increasing air pollution, limited fossil fuels and the right to a healthy environment, reveal the need to use renewable energy. The method of the present research is descriptive-analytical and the research data has been extracted from books, articles and official statistics by the Ministry of Energy, the World Energy O...
abstract part one: the electrode oxidation potentials of a series of eighteen n-hydroxy compounds in aqueous solution were calculated based on a proper thermodynamic cycle. the dft method at the level of b3lyp-6-31g(d,p) was used to calculate the gas-phase free energy differences ,and the polarizable continuum model (pcm) was applied to describe the solvent and its interaction with n-hydroxy ...
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...
While partial energy transitions have been observed in the past, the complete transition of a fossil-based energy system to a sustainable energy one is historically unprecedented on a large scale. Switching from an economy based on energy stocks to one based on energy flows requires a social paradigm shift. This paper defines Sustainable Energy Transition (SET) and introduces a set of five prop...
Management and optimization of energy consumption has been importantly considered by policy-makers in the field of energy and environment from the perspective of energy security and environmental considerations. In this study, nondominated sorting genetic algorithm (NSGAII) was applied to determine the optimal share of fossil energy sources for energy intensive industries of Iran including The ...
Management and optimization of energy consumption has been importantly considered by policy-makers in the field of energy and environment from the perspective of energy security and environmental considerations. In this study, nondominated sorting genetic algorithm (NSGAII) was applied to determine the optimal share of fossil energy sources for energy intensive industries of Iran including The ...
the major purpose of this study was to examine the advantages and implications of biogastechnology in the agriculture sector. biogas is one of many biomass energy sources, which includeanything that was once alive and that can generate energy (except for fossil fuels, which are notrenewable). to talk of biogas is to talk of agriculture, since biogas generation starts withagricultural waste prod...
Fuel cell-based hybrid cycles that include conventional power generators have been created to modify energy performance and output power. In the present paper, integrated biomass gasification (IBG)-molten carbonate fuel cell (MCFC)-gas turbine (GT) and steam turbine (ST) combined power cycle is introduced as an innovative technique in terms of sustainable energy. In addition, biomass gasificati...
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