Specific Energy Consumption Analysis Model and Its Application in Typical Steel Manufacturing Process

被引:0
作者
Wen-qiang Sun
Jiu-ju Cai
Tao Du
Da-wei Zhang
机构
[1] Northeastern University,The State Environmental Protection Agency Key Laboratory on Eco
来源
Journal of Iron and Steel Research International | 2010年 / 17卷
关键词
steel manufacturing process; theoretical minimum specific energy consumption; additional specific energy consumption; actual specific energy consumption; specific energy consumption analysis; exergy analysis;
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学科分类号
摘要
Theoretical minimum and actual specific energy consumptions (SEC) of typical manufacturing process (SMP) were studied. Firstly, a process division of a typical SMP in question was conducted with the theory of SEC analysis. Secondly, an exergy analysis model of a subsystem consisting of several parallel processes and a SEC analysis model of SMP were developed. And finally, based on the analysis models, the SEC of SMP was analyzed by means of the statistical significance. The results show that the SEC of typical SMP comprises the theoretical minimum SEC and the additional SEC derived from the irreversibility; and the SMP has a theoretical minimum SEC of 6.74 GJ/t and an additional SEC of 19.32 GJ/t, which account for 25.88% and 74.12% of the actual SEC, respectively.
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页码:33 / 37
页数:4
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