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首页> 美国政府科技报告 >Energy Conservation in the U.S. Economy from Increased Recycle of Obsolete Steel Scrap.
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Energy Conservation in the U.S. Economy from Increased Recycle of Obsolete Steel Scrap.

机译：美国经济中的能源保护从废钢废钢的再循环增加。

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The steel industry is the single largest user of energy in the industrial sector of the U.S. economy. Thus,through technological change of improvement,the steel industry has the potential to make a significant energy savings. The vehicle for this energy conservation is the increased recycling of obsolete ferrous scrap. Scrap recycling also reaps other benefits such as:reclamation of discarded ferrous products,preservation of natural resources for future use,and improvement of waste-disposal problems. How much energy can be saved in the U.S. economy from the increased recycle of ferrous scrap. Further,what is the optimum rate of recycling. These questions are posed from the perspective of energy conservation within the U.S. society moreover than the dollar economics of the steel industry alone. The model year is 1967and the anlysis is done for the nationwide steel industry. The research also makes use of the concept of total energy,which includes direct and indirect energy. Additional analysis shows the labor impact of energy-conservation changes in technology. An energy model of the steel industry is formed from information on both the steel-production technologies and the scrap-recycle industry. Several scrap-intensive processes,with detail to materials and fuels,for the Open Hearth and Basic Oxygen furnaces -plus an average Electric Arc process -make up the processes in the model. The energy model is optimized by use of linear-programming techniques to minimize the energy intensity of steel (Btu/ton of finished steel). (ERA citation 04:046910)

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