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ICESP VIII CONFERENCE PAPER ABSTRACTS B-3 SERIES

Held in Birmingham, AL, USA
May 14 - 17, 2001

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 B-3 Series papers from the VIII ICESP Conference. 

B3-1 Performance up Gradation of ESPs Using Difficult Coal
A.Chandra and Ison.V.Vanchipurackal
Centre for energy studies, I.I.T. Delhi

Abstract
Particulate emission levels from an old ESP associated with a power plant using difficult coal have been investigated.  Typical coal having low calorific value and high ash contents is being used for generating power.  The emission levels of particulate ate found to decrease by using microprocessor based intermittent charging and rapping systems.  The efficiency of ESP has been evaluated for various conditions of flue gas flow rate and migration velocities obtained.

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B3-2 Modernizaton of ESP Plants in Russia
E. Gelov, V. Gaak – Omskenergo, Omsk , Russia
G. Presnov, E. Chernyshev – Mosenergo, Moscow , Russia
K. Porle – ALSTOM Power Environmental Systems, Vaxjo , Sweden
A. Koptev – ALSTOM Power Stavan, Moscow , Russia

Abstract
The emission levels from many Electrostatic Precipitator (ESP) plants are far too high in Russia .  Aging equipment and lack of capital are major obstacles.  Russian Coals are often difficult for the ESPs.  A high ash content, e.g. Ekibastuz coal with up to 45% ahs, and a low S content are typical.

The paper give examples from different modernization, where as much as possible from old installations is used.  At a plant in the surroundings of Moscow new casings and internals were built after 3x250 MWe wet bottom boilers burning an anthracite coal.  Space was limited and high resistivity prevailed.  Achieved emissions were in a range of 50 – 100 mg/Nm3 - a reduction of more than 15 times.  For smaller units at the same plant improved gas distribution and new T/R controls reduced the emission to less than half.  Power Controlled Rapping was successfully implemented.

Gas distribution adjustments and modernization of the controls have resulted in substantial emission reduction in other stations to minimal costs.  At a do-generation plant in Omsk the ESP was preceded by a scrubber causing high corrosion.  The gas temperature is now being increased and acceptable emission level could be maintained.

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B3-3 Performance Improvement of Existing ESP in Cement Plant
K.K. Das Nag, ACC Ltd. Hamon Research-Cottrell in India

Manuscript not available for proceedings

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B3-4 Development of the Moving Net Type ESP to Improve Performance of ESPs in Operation
Yasutoshi Ueda 
Katsuhisa Kojima 
Morio Kagami
Kazutake Tomimutsu
Mitsubishi Heavy Industries, Lts.

Abstract
Increasing strict environmental regulations have made, it is necessary to reduce and control the emission dust.  In such situation, ESPs in operation must be made more efficient.  

One way to do this is to establish another ESP in addition, but more simple way has been expected because of limitation of space, construction period, and expense.  We developed a moving net type ESP, which set up at the end of the final section of ESPs in operation, uses less space, shorter construction period, lower cost than establish another ESP.

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Last updated: February 27, 2010.
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