In this paper, energy and exergy analysis of an existing steel electric arc furnace (EAF) was performed to estimate the furnace potential for increasing the efficiency and decreasing the electrical energy consumption. The results of analysis show that the energy and exergy efficiencies of the furnace are 56.9% and 40.5%, respectively. Field data show that mass flow rate of hot flue gas is around 10.4 kg/s in average which contains 18.3% and 12.2% of total input energy and exergy, respectively. By using energy of flue gas for preheating the sponge iron, electrical energy consumption of the furnace could be reduced up to 88 GJ which means 21.2% reduction in electrical energy consumption and 13.6% increase in steel production. Also, exergy efficiency improves about 10.8% by using preheating scheme.
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ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis
July 12–14, 2010
Istanbul, Turkey
Conference Sponsors:
- International
ISBN:
978-0-7918-4915-6
PROCEEDINGS PAPER
Exergy Analysis of Steel Electric Arc Furnace
Ebrahim Hajidavalloo,
Ebrahim Hajidavalloo
Shahid Chamran University, Ahvaz, Khuzestan, Iran
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Hamzeh Dashti
Hamzeh Dashti
Shahid Chamran University, Ahvaz, Khuzestan, Iran
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Ebrahim Hajidavalloo
Shahid Chamran University, Ahvaz, Khuzestan, Iran
Hamzeh Dashti
Shahid Chamran University, Ahvaz, Khuzestan, Iran
Paper No:
ESDA2010-24239, pp. 97-103; 7 pages
Published Online:
December 28, 2010
Citation
Hajidavalloo, E, & Dashti, H. "Exergy Analysis of Steel Electric Arc Furnace." Proceedings of the ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 1. Istanbul, Turkey. July 12–14, 2010. pp. 97-103. ASME. https://doi.org/10.1115/ESDA2010-24239
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