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KMID : 1024520110200010025
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Journal of the Environmental Sciences
2011 Volume.20 No. 1 p.25 ~ p.34
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The Prediction of Injection Distances for the Minimization of the Pressure Drop by Empirical Static Model in a PulseAir Jet Bag Filter
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Suh Jeong-Min
Park Jeong-Ho
Lim Woo-Taik
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Abstract
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The new empirical static model was constructed on the basis of dimension analysis to predict the pressure drop according to the operating conditions. The empirical static model consists of the initial pressure drop term () and the dust mass number term (), and two parameters (dust deposit resistance and exponent of dust mass number) have been estimated from experimental data. The optimum injection distance was identified in the 64 experimental data at the fixed filtration velocity and pulse pressure. The dust deposit resistance (), one of the empirical static model parameters got the minimum value at , at which the total pressure drop was minimized. The exponent of dust mass number was interpreted as the elasticity of pressure drop to the dust mass number. The elasticity of the unimodal behavior had also a maximum value at , at which the pressure drop increased most rapidly with the dust mass number. Additionally, the correlation coefficient for the new empirical static model was 0.914.
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KEYWORD
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Pulse air jet bag filter, Initial pressure drop, Coke dust, Dimension analysis, Injection distance
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