What Are The Various Methods Available To Control The ‘excess Air�

1.	What Are The Various Methods Available To Control The ‘excess Air’ In A Boiler?
Answer» Various methods are available to control the excess air: Portable oxygen analysers and draft gauges can be used to make periodic readings to guide the OPERATOR to manually adjust the flow of air for optimum operation. Excess air reduction up to 20% is feasible. The most common method is the continuous oxygen analyzer with a local readout mounted draft gauge, by which the operator can adjust air flow. A further reduction of 10-15% can be achieved over the PREVIOUS system. The same continuous oxygen analyzer can have a remote CONTROLLED pneumatic damper positioner, by which the readouts are available in a control room. This ENABLES an operator to remotely control a number of firing systems simultaneously. Various methods are available to control the excess air:

What Are The Various Methods Available To Control The ‘excess Air’ In A Boiler?

Answer»

Various methods are available to control the excess air:

Portable oxygen analysers and draft gauges can be used to make periodic readings to guide the OPERATOR to manually adjust the flow of air for optimum operation. Excess air reduction up to 20% is feasible.
The most common method is the continuous oxygen analyzer with a local readout mounted draft gauge, by which the operator can adjust air flow. A further reduction of 10-15% can be achieved over the PREVIOUS system.
The same continuous oxygen analyzer can have a remote CONTROLLED pneumatic damper positioner, by which the readouts are available in a control room. This ENABLES an operator to remotely control a number of firing systems simultaneously.

Various methods are available to control the excess air: