Emitting Electrode

Emitting Electrodes, also knows as Discharge Electrodes is the heart os the ESP. These are High Voltage internal and ionizes the gases and creates the electrical field. When the voltage breaks the gas down at the surface of the electrode, it generates corona power. This leads to creation of corona tufts on the surface of the electrode. Negative polariy voltage is applied to the electrode.The electrode design depends on various factors including the process for which the ESP is installed and the properties and composition of the flue gas.Types of Emitting Electrodes: For the corona generation, initially thin and round wires were installed. In some cases, twisted, barbed or square wires were also used.Nowadays, mostly rigid support frames are used for the electrodes. Frames may consist of spiral-spring electrodes, serrated strips, or needle spikes mounted on a support strip. Rigid type electrodes are also used in some applications, which is made from a single piece of fabricated metal.