نتایج جستجو برای: net energy
تعداد نتایج: 754208 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...
Since the Pennsylvania oil rush of 1859, petroleum has quickly become dominant fuel industrial society. The “Peak Oil” debate focused on whether or not there was an impending production crunch cheap oil, and whilst have been no shortages across globe, a shift from conventional to unconventional liquids occurred. One aspect this fully explored in previous discussions–although some importance low...
wheat is the dominant cereal crop constituting the first staple food in iran. this paper studies the energy consumption patterns and the relationship between energy inputs and yield for wheat production in iranian agriculture during the period 1986 – 2008. the results indicated that total energy inputs in irrigated and dryland wheat production increased from 29.01 and 9.81 gj ha-1 in 1986 to 44...
Citation: Markussen MV, Pugesgaard S, Oleskowicz-Popiel P, Schmidt JE and Østergård H (2015) Net-Energy Analysis of Integrated Food and Bioenergy Systems Exemplified by a Model of a Self-Sufficient System of Dairy Farms. Front. Energy Res. 3:49. doi: 10.3389/fenrg.2015.00049 net-energy analysis of integrated Food and Bioenergy systems exemplified by a Model of a selfsufficient system of Dairy F...
this research is about the political economy of china in central asia. in this research the political & economic interactions affected on chinas political economy in central asia are examined. chinas goal of presence in central asia including political-security, economic and energy goals is described in one part. in another part, the trade relations between china and central asian countries ar...
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