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In this study, it was conducted to design each components of vane damper for industrial flow control fan and the flow rates were analysed by experimental and numerical method. Through environmental test, it could be confirmed that the designed vane damper was appropriate. Also, almost identical results with test could be drawn from numerical method. Finally, flow rates of electric and pneumatic actuator were measured by test. As the results, difference of flow rate according to opening ratio was smaller in pneumatic actuator than that in electric actuator. Key Words : Vane damper(), Flow control(), Fan(), Actuator() 1.         (Vane damper)      .       (Invert motor)                  .                 ,         .                .             .   ,       .        .       ,         ,        .,                .    ,        ,               前報

A Study on Development of Vane Damper for Industry Flow Control Fan