Conventionally, DC arc furnaces are fed by thyristor rectifiers to control the level of current or power transferred load. With advancement high-power transistors, other structures such as diode and choppers have been introduced developed for feeding system electric furnaces. In this paper, effect different supply systems on quality indexes is discussed. regard, two types considered, including ...

Abstract One of the biggest energy consumers and CO2 emitters in world is steel sector. With growth infrastructure construction, output has risen year over year. Therefore, a life cycle assessment inputs outputs at each stage manufacturing process necessary to enable adoption management offer sustainable production consumption. The Life Cycle Assessment method employed this study assess environ...

industrial processes release a range of gaseous and particulate pollutants containing heavy metals into the air. lack of enough attention to the design, installation, repair and maintenance of gas and dust filtration systems in industries, is one of reasons of increasing the emissions of these pollutants. hereon, the steel making processes is one of emission sources of heavy metals. according t...

Arc furnaces can be classified as electricity receivers, which largely affect the quality of in power system. Voltage fluctuations are main disturbance generated by arc furnaces. The effects voltage include phenomenon flickering light. Apart from fluctuations, devices, to a lesser extent, source current and asymmetry, curve distortion, dips. purpose theoretical considerations is assess article ...