نتایج جستجو برای: renewable energy consumption and then
تعداد نتایج: 16959959 فیلتر نتایج به سال:
with the increasing world population and limitations on arable land, increasing the yield per unit is one of alternatives human food supply. greenhouse cultivation as one ways of increase the performance can arrive this purpose. but the energy restriction of another human challenges, so that increase the performance without considering energy consumption almost appears to be meaningless. due to...
Given the role renewable energy is likely to play in the context of sustainable development, it is important to understand the relationship between renewable energy and economic growth. Therefore, this paper examines the relationship between renewable energy consumption and economic growth in a panel of sub-Saharan Africa countries from 1990-2011. Using a production function framework, the depe...
introduction energy is one of the most important commodities that make up a large proportion of international trade. among all the countries in the world, iran is known as semi-industrial developing country which is rich in energy such as non-renewable energy in particular fossil fuel. use of energy affects the environment in various forms of pollution. in the agricultural sector, the fao repor...
castor bean (ricinus communis l.( with a capability to withstand harsh conditions, low nutritional needs, 50 percent of oil content and high- quality, is one of the best crop used to produce biodiesel. the first step toward introduction and widespread cultivation of this crop is to investigate the energy balance for its cultivation. to do so, energy input (include renewable and nonrenewable) an...
In this study, a new multi-objective method is proposed to optimal manage the local energy resources and customers’ load in a microgrid in the presence of demand response programs. The wind turbine and photovoltaic panel are the renewable energy sources of the microgrid. The time of use and critical peak pricing programs are also used to improve the consumption pattern of customers. Moreover, c...
In December 2015 the nations of the world agreed, in principle, to limit global warming to no more than 2 ◦C above pre-industrial levels. In order to achieve this goal, recent publications have shown that (1) more than 50% of known fossil fuel reserves need to remain unused, and (2) the timing of the transition away from fossil fuels needs to achieve 50% renewable energy by 2028, an expansion o...
abstract intensive and inefficient use of energy leads to degradation of natural resources and environmental problems. this study evaluated the relationship between the energy of consumed inputs and yield of tomato, cucumber and melon using the cobb–douglas production function. the data were collected from 90 farmers in firoozabad using a questionnaire. the farmers were chosen by simple random ...
This paper investigates impacts of possible chances in energy policy and consumption behavior on optimal energy management and feasibility study of a hybrid energy system. The study was performed on a remote area near Esfarjan, a village located in Shahreza, Iran. In the main scenario, the current energy policy is applied while the consumption behavior of customers is studied by means of an inc...
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...
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