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What is Single Field ESP?

An ESP has multiple discharge electrodes between each set of collecting plates, and multiple sets of collecting plates in a single "field" which are oriented in the direction of gas flow. Each field acts as an independent precipitator. Hence ESP with only one independent Chamber for collecting dust from the Flue Gad is known as Single Field ESP.

Where to use single field ESP?

  1. Inlet dust burden is very low i.e. 500 to 700 mg/Nm3
  2. Coarser particles are already collected in cyclone/dust collector prior to entering the ESP; hence ESP has to handle only finer particles.
  3. Outlet emission required is only 150mg/Nm3 which is approx. 80% efficiency of the ESP in worst condition and 70% efficiency in normal condition.
  4. This requirement is far lower than standard requirement of 90% efficiency.

How it works?

  • As there are no coarser particles and dust burden is very low, the concentrated current from the discharge electrodes will not be required and which will make difficult for conventional type of electrodes to capture fine dust particles.
  • Hence V T CORP developed Star type electrodes for such applications which discharges uniform current distribution to capture the fine dust from the Flue gas.

Advantage of single field ESP:

  1. Compact in size and therefore easily accommodate in the available space.
  2. Create a space for future expansion to adhere to emission norms.
  3. Economical and easy to install at the existing Boilers, where ESP is mandatory to install to adhere to current Emission Norms