System Design and Thermodynamic Analysis of a Sintering-driven Organic Rankine Cycle

Abstract

By reviewing development of waste heat utilization in sintering process and sinter cooling process, two major difficulties are more and more apparent. A system of low temperature waste heat utilization based on organic fluids is proposed, which is composed of flue gas waste heat utilization heat exchanger, thermal storage subsystem and organic Rankine cycle (ORC) subsystem. The sintering flue gas and the sinter cooling air are adopted as the heat source. And on this basis, we establish the simulation analysis platform for the whole thermodynamic system. From a comprehensive perspective, the low temperature waste heat utilization could run well when the sintering heat source fluctuates within a certain range. It means that, the ORC-based system could overcome difficulties in utilizing waste heat in sintering process.