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C2-1
IPC System and New Type T/R Microcomputer Control
Guo
Jun, Fujian LongKing Environment Protection Co., Ltd
Abstract
In this paper, a new development
of Electrostatic Precipitator IPC System is introduced.
The technical idea is discussed for development of ESP
computer control in two ways of macro-control and micro-control.
This paper emphasizes on the development of MVC-196 new type
microcomputer control and the improvement of IPC function.
Key work:
IPC system; microcomputer device; macro-control;
micro-control
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C2-2
Methods to Reduce the Energy Consumption of an ESP
Dr.
Manfred Schmoch, Siegmar Breuer, Hamon Rothemuhle Cottrell (HRMC)
Abstract
No abstract
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C2-3
Low Maintenance Robust Pulse Power for Pulsed
Corona
NOx and Sox Control
P.H.
Swart and R. Strydom
Abstract
Pulse corona application for the
removal of NOx and Sox in Fossil fuelled power stations is presently
considered to be a viable and competitive technology.
It holds considerable promise in price and effectiveness,
provided that suitable low maintenance and reliable pulse power can
be obtained to power these systems. This
paper discusses new pulse power technology that will be applicable
to the intended application and presents new switching topologies
that promise the reliability, low cost and low maintenance that will
be essential to render these systems viable. A number of existing
alternative generic topologies are compared, emphasizing strong and
weak points, followed by a discussion of the all-solid state low
voltage resonant switching topology that will be used by the authors
in a new commercial development in South Africa and a brief
projection of how this technology can be utilized in a full-sized
installation.
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C2-4
Identification of Optimal Parameters for Pulsed Energization of ESPs
Norbert
Klippel, Alstom Power Technology
Abstract
The limitations and opportunities
of pulsed energization are discussed based on theory and laboratory
experiments with flexible pulse shapes and widths. The influence of
pulse length on ESP efficiency was measured for fly ash of high
resistivity above 1013Ωcm.
An interesting finding is that the shortest selected pulses
of 20µs did not result in the highest performance.
Instead the efficiency increases with pulse length when the
average corona current is kept constant.
This increase reaches its limit when sparking occurs at pulse
lengths that approach ion transit time.
The best parameter setting is therefore a compromise between
optimization of field charging and suppression of sparks.
This optimum is depending on the actual ESP geometry.
Measurements for a commercial design with helical wire
electrodes and standard collecting plates of 300 mm spacing are
presented within the range of pulse lengths between 20µ and 0.5ms.
The general limitation of pulsed energization is discussed in
the frame of a modified Deutsch model that takes the average
charging current into account.
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C2-5
Effects of Back
Corona
on Rape Waveforms
Duane H. Pontius,
Southern Research Institute
Abstract
No abstract
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