Technico-Ecnomical Study of a Waste Heat Recovery ORC Module Installed on a New Sintering Circular Cooler
(Room 205C)
08 May 17
11:30 AM
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12:00 PM
The Organic Rankine Cycle (ORC) technology allows combined heat and power (CHP) or purely electrical generation from different heat sources (biomass, waste heat, geothermal, solar). The present paper focuses on the particular case of a waste heat recovery ORC module installed on a totally new sintering plant. The module is directly connected to the 15-MWth superheated water loop (150°C) that is used to recover the heat from the cooling air previously heated by the hot pieces of coke. A second heat source is also valorized: 6-MWth steam at 6 bara and 180°C. The studied ORC is using R245fa as working fluid. The turbine is a 3.5-MW axial type with a flowrate control system at inlet, and the pump is a centrifugal type. The paper focuses on the technico-economical study of the interest of valorizing the steam and the superheated water or only the superheated water.