Role of Primary Air Fan and Secondary Air Fan in Thermal
The secondary fans (SA fans) play an important supporting role in power plants. The secondary fan allows for complete combustion of the fuel inside the furnace. As and when required the SA fan is used to increase the air flow to improve the efficiency and avoid wastage of fuel.
Feb 12, 2012 · 1.2 Typical Arrangement of CFB Boiler• Air System - Primary air fan (PA. Fan) - Secondary air fan (SA. Fan) - Loop seal air fan or Blower By Chakraphong Phurngyai :: Engineer, TKIC 11. 1.2 Typical Arrangement of CFB Boiler• Flue Gas Stream - Induced draft fan (ID.
Boiler induced draft fans,Centrifugal ID Fans for boilers
See related content like products and images with every search.
Mar 01, 2010 · The Secondary Air fan (also known as Forced Draft fan) provides the balance, and majority of combustion air. Its only pressure requirement is the flow of air through the ducting and airheater. Even at low boiler loads, the head requirement of the primary air system is similar to full load with additional mills in service.
Secondary Air Fans. Secondary air, on the other hand, is generally provided to compensate for the primary air that went unreacted. It is generally said to be an extra air that must be provided for complete combustion of fuel. Secondary air is generally …
Secondary Air Fan in Boiler - CR4 Discussion Thread
Steam boilers having an external furnace are generally provided with both Primary ( pa fans ) and Secondary air inlets and both play an important role in the combustion of fuel. Primary air is generally the basic amount of air required for complete combustion of fuel and it depends upon the composition and quantity of fuel required by the boiler.
Primary Air Fan, Secondary Air fan are the different names of Forced Draft Fan. They all may be installed in the same Steam Boiler Assembly but they all operate at different levels of flow (m3/hr) and Head generated (mmwc).