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ICESP X CONFERENCE PAPER ABSTRACTS 4A 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 4A Series papers from the X ICESP Conference.  

4A1
SIZING AND DESIGN EXPERIENCES OF
THE ELECTROSTATIC PRECIPITATORS FOR TWO 600 MW POWER GENERATING UNITS
GUO LING, WANG LIQIAN, DING JINWU AND MICHAEL ZHU

Abstract

Hequ Power Plant has two 600MW units burning Hequ coal with its mine very near Zhungeer coal mine. Both coals are low sulfur of 0.44%~0.48%. It is well known that Zhungeer coal is the most difficult coal for ESP applications in China. As a result, ESPs burning Zhungeer coal with large SCAís of 140m2.s/m3 and huge actual specific power consumptions of 1740w/1000m3/h (corresponding a calculating current density of 0.838mA/m2 collecting area) have still operated with dust emissions of 110mg/m3. The selection of a suitable SCA and current density for the Hequ coal ESP was made only after a very careful analysis of the difference between coals. As a result, a much smaller design SCA value of 97.64m2.s/m3 and 0.2~0.3mA/m2 current density were selected; actual operation has proved the design was successful. The number of T/R sets also reduced to one half that used on the Zhungeer coal ESPs.

In addition, the use of a new design method for combining the US top rapped support system
with Europe type collecting plates, and the use of special rapping acceleration tests and optimized structural designs resulted in the Hequ ESP achieving a very light specific weight of 26.8kg-steel/per square meter collecting area (2521 ton for one 600MW unit). Comparing this to the average value of Chinese ESPs, about 23% percent less steel was used and more than 1/4 of the cost was saved.

In October of 2004 and February of 2005, these two 600MW ESPs have been put into operation respectively. Satisfactory operation and anticipated emissions were achieved.

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4A2  
REMOVAL OF MARINE DIESEL PARTICULATE MATTER
BY ELECTROSTATIC PRECIPITATOR
I MADE ARIANA, NISHIDA O, FUJITA H, HARANO W AND FUJIO M

Abstract

Diesel particulate matter exhausted from marine diesel engine during the combustion process cause a various human health and environment impacts. Many methods were applied to control mass concentration of particulate matter from diesel exhaust gas. This research has been developed applying an electrostatic precipitator (ESP) to reduce marine diesel particulate matter. The objective is to investigate experimentally ESPís performance on reducing diesel particulate with variation of exhaust gas temperature. Using a single stage and wire-plate type of ESP, the diesel particulate characteristics, such as mass concentration, composition (SOF and DS), size distribution and mean diameter of the aggregate particulates, under different engine operating conditions, are analyzed. Effects of exhaust gas flow on ESPís performance and operating duration of ESP are also discussed. The results show that applied ESP can reduce particulate mass concentration. The particulate mass concentration that reduced depends on gas temperature and initial particulate mass concentration. ESP could reduce the Soluble Organic Fraction (SOF) greater than Dry Soot (DS), and the mean diameter of aggregate particulates decreases.

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