INTEGRATED SYSTEM TO CONTROL PRIMARY PM 2.5 FROM ELECTRIC POWER PLANTS

Federal Energy Technology Center (U.S.)

关键词: 01 Coal, Lignite, And Peat;    Electrostatic Precipitators;    Coal;    Fossil-Fuel Power Plants;    Air Pollution Control;   

DOI  :  10.2172/778929
RP-ID  :  FC26-00NT40757--01
RP-ID  :  FC26-00NT40757
RP-ID  :  778929

美国|英语

来源: UNT Digital Library

【 摘 要 】

Task 1 involves fitting the conventional ElectroCore separator with a central electrode and evaluating the performance. The conventional ElectroCore, used in the field test at Plant Miller near Birmingham, Alabama, was shipped to the LSR laboratory where it was cleaned and inspected. The unit had been sitting unprotected outdoors and was badly rusted inside and out. After cleaning the unit to the best of our ability, the internal walls of the separator were still very rough compared to when the unit was new. Restoring the unit to its original condition was estimated to cost about $30,000 and take about 16 weeks, so it was decided to modify the test procedures to be able to use the unit in its existing condition. Repairing the unit would put the project over budget and behind schedule. The rough walls would have little impact on the electrical characteristics or on the details of the flow geometry. It was believed that the rough walls would have a large impact on particle performance because the particles are expected to bounce along the wall before being extracted from the bleed flow outlet slot. The device is designed to prevent particles from adhering to the walls and it would be impossible to keep particles from adhering to the now roughened surface. The approach was to use the unit for evaluating the central electrode installation and to look at the gas flows within the unit but not to use it to measure particle separation efficiency.