Analysis of Energy Balance for a Steel Electric Arc Furnace

Abstract

A process and energy analysis was performed for an Electric Arc Furnace for steel production in order to determine the energy efficiency defined as losses contribution in the total energy input. Process analysis was performed during operation for one batch, measuring the relevant process parameters. Energy balance revealed that a significant potential for improvement exists, the main directions being reducing the cooling water loss (for example, by implementing a heat recovery system), reducing the loss during loading and adjustment by implementing technology changes and automation and reducing the loss through exhaust gas. Although implementation of heat recovery systems on the cooling water circuit and exhaust gas duct will not influence the actual process energy efficiency, it is expected to improve the overall energy expenditure by integrating other heat consuming equipment.

Study on the Reliability and Stability of Fatty Acid‐Paraffin Ternary Phase Change Materials as Energy‐saving Materials

“…In addition, PCMs can be endothermic and exothermic at an approximately constant temperature during the change of state. [6] It has demonstrated remarkable benefits in building energy efficiency [7][8][9][10][11][12] and is widely used in building envelopes such as walls, [13][14] roofs, [15][16][17] floors, [18] and windows. [19] A wide range of PCMs can be split into organic and inorganic PCMs according to their chemical composition.…”