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Novel Application of Organic Rankine Cycle (ORC) Technology for Waste Heat Recovery from Reheat Furnace Evaporative Cooling System Ahmet DURMAZ TMEIC 2060 Cook Drive Salem, VA 24153, USA Tel: 540-283-2000 Fax: 540-283-2395 E-mail: energy@tmeic.com Ralph Pugh TMEIC 2060 Cook Drive Salem, VA 24153, USA Tel: 540-283-2158 Fax: 540-283-2395 E-mail: ralph.pugh@tmeic.com Şaban YAZICI TOSÇELİK Osmaniye OSB Turkey Tel: +90 328 826 80 80 Fax: +90 328 826 80 09 E-mail: saban.yazici@toscelik.com.tr Kasım ERDOĞAN TOSÇELİK Osmaniye OSB Turkey Tel: +90 328 826 80 80 Fax: +90 328 826 80 09 E-mail: kasim.erdogan@toscelik.com.tr Abbas KOŞAN TOSÇELİK Osmaniye OSB Turkey Tel: +90 328 826 80 80 Fax: +90 328 826 80 09 E-mail: abbas.kosan@toscelik.com.tr Keywords: Organic Rankine Cycle, Energy Savings, Slab Reheat Furnace, Waste Heat Recovery INTRODUCTION The Tosçelik Hot Strip Mill was originally commissioned in 2009 with an evaporative cooling circuit to remove heat from the skids in the walking beam slab reheat furnace supplied by SinoSteel, China. The natural gas burning furnace has a 250 tons/hour maximum cold charge slab capacity and its evaporative cooling system wastes a significant amount of thermal energy and water by releasing excess heat as steam. In 2010, Tosçelik wanted to install electric generators driven by an Organic Rankine Cycle (ORC) process to convert excess heat into electrical power and significantly reduce the amount of make-up water consumed by this cooling system. The ORC units and accompanying control system were commissioned and have been in operation since September 2011. This paper will review the equipment selected for this upgrade and present data quantifying the energy saving benefit realized from this project. Figure 1. Slab Reheat Furnace Figure 2. Furnace StackPDF Image | Novel Application of Organic Rankine Cycle (ORC) Technology for Waste Heat Recovery from Reheat Furnace Evaporative Cooling System
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