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ICESP X CONFERENCE PAPER ABSTRACTS 10A SERIES

Held in Cairns, Australia
June 25 - 29, 2006

The International Conference on Electrostatic Precipitation (ICESP) is the official conference of the International Society for Electrostatic Precipitation (ISESP).  

The following is a list of the Abstracts for the 10A Series papers from the X ICESP Conference.  

10A1
SO3 FLOW BIASING, AN ENGINEERED APPROACH
MICHAEL VUKMIR

Abstract

One of the major problems that have been encountered in the attempts to perform SO3 conditioning of multiple ESP (electrostatic precipitator) path units is the distribution of SO3 gas to the path where it is needed in the correct quantities. In cases where a Lungstrum type rotating air heater is used, where environmental conditions such as ambient air temperature are affecting duct temperature or when uneven distribution of ash causes an imbalance in loading, how can you deliver the correct amount of SO3 to the paths in need of additional conditioning without over conditioning the others? Several approaches have been tried such as valves, remote converters or even orifice plates in the SO3 lines. All of these methods have short comings when trying to adjust flow to the various ESP paths.

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10A2 
A NEW TYPE FIELD TEST INSTRUMENT FOR SPECIFIC
RESISTIVITY OF FLY ASH


HENDRE D GROBBELAAR

Abstract

The probe of this instrument can be inserted into the flue directly for testing the specific resistivity of fly ash. It adopts the ceramic filtration catcher and iso-speed sampling based on static pressure balance technique with parallel short-tube. The collection efficiency of ceramic filtration catcher (h) can reach even exceed 99.9%, and the error of sampling in different velocities is less than or equal to 5%. All these make the sameness between samples and the actual fly ash in many facets, including size distribution, carbon content, element compositions, etc. The coefficient of optimizing ringed electrode for concentric cirques k is 14.6, which can adapt all kinds of fly ash whose specific resistivity is in the range from 104 to 1013 cm W . In addition, the ceramic filtration catcher made of white corundum powder can endure high temperature, high voltage, and acid cauterization. So this test instrument can work well under the conditions in which the flue temperature is from room temperature to 300oC and in the caustic gas. Ceramic filtration catcher also has many excellences, such as avoiding disassembly, cleaning ash easily, repeating use for long time. This instrument has obtained the invention patent in China and applied widely in the domestic range.

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