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What is the purpose of a combustion control system in a boiler?

To increase steam temperature

To monitor and regulate the fuel-air mixture for efficient burning

The primary purpose of a combustion control system in a boiler is to monitor and regulate the fuel-air mixture for efficient burning. This is critical because the efficiency of combustion directly affects the boiler's performance, fuel consumption, and emissions. By maintaining the optimal ratio of fuel to air, the system ensures that combustion occurs effectively, minimizing the unburned fuel and maximizing the energy extracted from the fuel, which is crucial for achieving high efficiency and lower operational costs.

Additionally, regulating the fuel-air mixture contributes to safety by preventing situations that could lead to incomplete combustion, which could result in the production of harmful emissions or unsafe operating conditions. Properly adjusted combustion control also helps maintain stable operation under varying load conditions, which is essential in industrial settings where demand can fluctuate.

While the other choices indicate important functions related to boiler operation, they do not focus on the main role of the combustion control system. For instance, increasing steam temperature relates more to the boiler's heat transfer elements rather than the combustion process itself. Monitoring water levels is a separate aspect of boiler safety and operation distinct from combustion control. Controlling emissions is a part of the broader environmental compliance measures that may be influenced by combustion control but is not the primary function of the system.

To measure water levels

To control emissions

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