Minimum energy requirements in industrial processes: An application of exergy analysis

Sergio Alvarado and José Iribarne

Energy, 1990, vol. 15, issue 11, 1023-1028

Abstract: Exergy analysis is applied to the production of copper, wood pulp and steel. In Chile, these three sectors account for 56% of the total manufacturing industry-mining energy demands, with the following average specific energy uses: 25.6, 23.7 and 24.2 MJ/kg, respectively. The minimum energy requirements calculated are −90.6 MJ/kg for blister copper, −12.6 MJ/kg for pulp and 6.2 MJ/kg for steel ingots. These theoretical results show that the first two processes could be made energy self-sufficient and that there exists a large potential for improvement in energy efficiency in all three cases.

Date: 1990
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:15:y:1990:i:11:p:1023-1028

DOI: 10.1016/0360-5442(90)90028-Z

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