|ICESP X CONFERENCE PAPER ABSTRACTS
Held in Cairns,
Conference on Electrostatic Precipitation (ICESP)
is the official conference of the International Society for Electrostatic
The Indigo Agglomerator has been installed at five power stations worldwide, providing asignificant improvement in electrostatic precipitator performance that has proven consistent over time and a wide range of coals. The five power stations utilize a range of plant designs including European and American design electrostatic precipitators and various boiler combustion arrangements. The coals burned include a range of Australian, Columbian, and United States coals. By providing a reduction in mass emissions of 30% to 60% and a reduction in Opacity of 50% to over 80% across this range of operating conditions and over a period in excess of three years, the Indigo Agglomerator can now be considered as a proven technology for reducing emissions from electrostatic precipitators and the corresponding stack Opacity.
three full scale Indigo Agglomerators in operation on coal fired
boilers in the US. This paper
focuses on the reductio n of total particulate matter (PM), PM 2.5
(PM less than 2.5 um in
diameter), and visible
emissions (Opacity) on the three US installations.
KAZUTAKA TOMIMATSU, HIDEKATSU FUJISHIMA, YASUTOSHI UEDA1 AND AI SEKIZAWA
In case of fire, maintaining visibility is very important for people to find the refuge at the firstfire stage. Especially, fire at underground levels causes smoke flowing to the same direction as the passage to the refuge, so that the countermeasures to maintain visibility, such as ventilation system, should be equipped. However, many old buildings may not allow additional duct space for providing enough ventilation.
In such cases, a fire smoke eliminator can assist the safety refuge even if ventilation may not be enough provided. For this purpose, a new concept of smoke eliminator using electrostatic technology is proposed, and an experimental model test has been performed.
Since the smoke eliminator is operated only under the emergency condition, the size of the eliminator is required to be compact. However, in case of fire, the eliminator should treat huge amount of smoke gas having dense and fine particulates.
For satisfying with the
above function and effectively eliminating smoke, a new technology
using ionic wind accompanied with
corona discharge is applied. The
test result of compact sized model shows very high performance for
both cases, white smoke mainly
consisting of mist and black smoke of unburned carbon. For white smoke
with 0.5 micro meters of
particulate mean-diameter, the collecting efficiency exceeds 98% when
the retention time is less than
LONG TAO, ZHOU BAOSHAN AND XU JIAN
Accompanying the fast development of power, cement and iron/steel industries recently,China have produced huge quantity of precipitators and its insulators. Different kinds of material were used for insulators, such as common electrical porcelain, high strength electrical porcelain, quartz (silicon glass), high polymer and high alumina porcelain, etc. A lot of successful and non-successful experiences were encountered. Of course there have different suitable material and geometrical choices for different industrial processes, yet it seemed for the same process there may have some different material requirements between European type and American type precipitators mainly because of their different type of electrode rapping.
This paper summarized the Chinese experiences and comparisons of material selection andinsulator geometries for different processes and precipitators both technically and economically.
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Last updated: May 10, 2009.
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