xergy Analysis for AC Electric Arc Furnace of an Steel Production Factory

Document Type : full paper

Authors

• bazar Daghayeghi ¹
• Shahin Shamsi ²

¹ MSc Student, Department of Electrical and Computer Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran

² Assistant Prof. Department of Electrical and Computer Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran

Abstract

In this research chemical and physical exergies of materials going into and out of the electric arc furnace of 65 Ton were calculated for one of the steel production industries in Iran. The amounts of chemical exergy change and exergy destruction of the process were obtained 42429 MJ and 93481 MJ respectively. Exergyloss is 4795 MJ related to stack gas that provides opportunities for heat recovery. In order to obtain exergy efficiency four types of relations found in the literature were used in the research work done, and four different amounts: 37, 26.3, 51.8 and 36.8 resulted from that. Proper relation taking into account physical exergy efficiency was proposed considering the process type of the furnace

Keywords

• Exergy
• Electric arc furnaces
• Steel production

---