According to Tenova, which outfitted the company’s No. 5 furnace at its facility in Jubail Industrial City, Saudi Arabia, with its iDRI technology, the system has improved yields, productivity and efficiency. 

Tenova said the system, designed for electric arc furnaces charged with direct reduced iron (DRI), offers real-time mass and energy balance and chemical energy control and optimization of the DRI feed rate and the oxy-carbon injection system. The system operates on data provided by, among the things, a downstream offgas analyzer and temperature and offgas flow sensors in the fumes treatment plant. 

With the system, furnace has improved productivity by 4.1% and reduced electrical consumption by 3.23%, Tenova said.