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KMID : 1024520090180070755
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Journal of the Environmental Sciences
2009 Volume.18 No. 7 p.755 ~ p.765
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Optimization of the Design of Large Ducts with the Space Constraint in 500MW Power Plant
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Hwang Woo-Hyeon
Lee Kyung-Ok
Cho Yong-Ki
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Abstract
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Some sections of the exhaust system to determine the shape of the duct is to suffer the difficulties by space constraints to install new equipment of the environment post-treatment for existing operation of the power plants. In this paper the large duct in flue gas desulfurization equipments of the 500MW coal-fired power plant on the current operation is numerically analyzed from induced draft fan exit to booster up fan inlet section which is in the narrow space of the exhaust system with four times bending and is connected to emergency duct to bypass the exhaust gas on the emergency operation. The procedure and method using computational fluid dynamics are proposed to maintain the stability of the guide vane with the uniform flow and a minimum pressure loss of exhaust gas in the case of normal and emergency operation between the direction of the flow of exhaust gas duct at different.
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KEYWORD
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Guide vane, Computational fluid dynamics, Power plant, Flue gas desulfurization, Emergency duct
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