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이용운(Yong-Woon Lee),예인수(In-Soo Ye),이명일(Ming-Ri Li),홍재현(Jae-Hyeon Hong),오정근(Jeong-Geun Oh),이웅진(Ung-Jin Lee),류창국(Chang-Kook Ryu) 한국연소학회 2010 KOSCOSYMPOSIUM논문집 Vol.- No.40
Wood pellet is a densified fuel with homogeneous physical properties suitable for use in various scales of domestic and industrial furnaces. A wood pellet stove is a small-scale furnace for domestic heat production, which can replace the conventional oil or gas boilers. Since the fuel properties of wood pellet is very different from oil or gas, the design of a wood pellet stove requires profound understanding on the solid fuel combustion as well as gas flow mixing/reactions. Due to the size limit of the furnace height (~1m) for domestic installation, poor design of furnace, air supply and heat exchanger may lead to excessive emission of CO or low energy efficiencies. This study evaluated the design of an existing wood pellet stove with 30,000 ㎉/hr capacity using experimental and computational techniques in order to optimize the furnace design. The results show that it is critical to minimize the unused furnace volume and to enhance the gaseous mixing for reduced CO emission.