순산소 연소 기술 실증을 위한 영동 1 호기 보일러 개조 타당성 연구

125MWe Young Dong Unit 1 power station that has been firing low volatile anthracite coal for a number of years requires an upgrade or replacement for converting to bituminous and sub-bituminous coal and also for introducing an Oxy-PC firing demonstration capability for a period of approximately one year. The key object of this study is a selection of either a replacement boiler or a retrofit conversion of the existing down shot furnace to fire on oxygen or air. Four cases are proposed and evaluated on the ground of the collected data from site survey. The retrofit case of existing down-shot furnace and boiler pressure parts with new circular register burners in the lower furnace front and rear walls represents the optimum solution in terms of economic and technical performance for both air and oxy firing condition. The recommended case will be applied to FEED(Front End Engineering Design) study for the existing Young Dong Unit 1 boiler retrofit