Good site specific records of both the design and operating history will enable operating personnel
to better evaluate ESP performance. Design parameters built into the ESP include the
following: the specific collection area (SCA), number of fields, number of T-R sets, sectionalization,
T-R set capacity, design velocity and treatment time, aspect ratio and particle characteristics
(resistivity). Design records indicate the specific conditions under which the ESP was
designed to operate. A comparison between design records and operating records indicate
whether operating parameters have changed significantly from the design conditions. Sec-ondly, maintaining proper operating records establishes good baseline information to bracket
normal ranges of operation.
Evaluating ESP operating problems can be difficult and no single parameter can identify all
potential problems; a combination of factors should be considered to accurately pinpoint problems.
For example, although most ESP problems are reflected in the electrical readings, many
different problems produce the same characteristics on the meters. In addition, an initial failure
or problem can cause a "domino effect" bringing about even more problems and making it difficult
to identify the original cause.
The EPA (1985) categorized the major performance problems associated with electrostatic
precipitators into the following seven areas: resistivity, dust buildup, wire breakage, hopper
pluggage, misalignment of ESP components, changes in particle size distribution, and air
inleakage. These problems are related to design limitations, operational changes, and/or maintenance
procedures. The following discussion about the identification of these problems and
their effect on ESP performance is excerpted from the EPA document titled Operation and
Maintenance Manual for Electrostatic Precipitators (1985).
to better evaluate ESP performance. Design parameters built into the ESP include the
following: the specific collection area (SCA), number of fields, number of T-R sets, sectionalization,
T-R set capacity, design velocity and treatment time, aspect ratio and particle characteristics
(resistivity). Design records indicate the specific conditions under which the ESP was
designed to operate. A comparison between design records and operating records indicate
whether operating parameters have changed significantly from the design conditions. Sec-ondly, maintaining proper operating records establishes good baseline information to bracket
normal ranges of operation.
Evaluating ESP operating problems can be difficult and no single parameter can identify all
potential problems; a combination of factors should be considered to accurately pinpoint problems.
For example, although most ESP problems are reflected in the electrical readings, many
different problems produce the same characteristics on the meters. In addition, an initial failure
or problem can cause a "domino effect" bringing about even more problems and making it difficult
to identify the original cause.
The EPA (1985) categorized the major performance problems associated with electrostatic
precipitators into the following seven areas: resistivity, dust buildup, wire breakage, hopper
pluggage, misalignment of ESP components, changes in particle size distribution, and air
inleakage. These problems are related to design limitations, operational changes, and/or maintenance
procedures. The following discussion about the identification of these problems and
their effect on ESP performance is excerpted from the EPA document titled Operation and
Maintenance Manual for Electrostatic Precipitators (1985).
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