A lab-scale study on the humidity conditioning of flue gas for improving fabric filter performance |
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Authors: | Ok Hyun Park Gab Jun Yoo Bong Jo Seung |
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Affiliation: | (1) Department of Environmental Engineering, Pusan National University, Busan, 609-735, Korea;(2) Research Laboratory, Digital Appliance Company, LG Electronics, Changwon City, Gyeongnam, 641-711, Korea |
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Abstract: | A centrifugal separator was constructed to examine the effect of flue gas humidity on the adhesional force between fabric
and collected dust. A lab-scale fabric filter sampling system (FFSS) was also manufactured by using a piece of flat fabric
as a sample of bag material. In addition, an automatic control system for gas humidity was devised and installed in the FFSS,
and, then, the following effects were studied: (i) the influence of gas humidity on the adhesional force between fabric and
dust particles; (ii) the influence of gas humidity on the performance of fabric filter in terms of pressure drop, ΔP, dust
removal efficiency, η, and specific cake resistance, K′2; (iii) the variations in the composite-performance indices with gas humidity; and (iv) the influence of gas humidity on cleaning
of dust-cake in terms of effective residual pressure drop. The main objectives were to determine the minimum and maximum values
for the gas humidity range and to find the appropriate conditions for dust cleaning in terms of the critical value of effective
residual pressure drop. |
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Keywords: | Adhesional Force Humidity Conditioning Fabric Filter Performance Effective Residual Pressure Drop Specific Cake Resistance |
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