What percentage of boiler full power capacity is boiler overload capacity normally?

The correct answer, which is 120%, represents the typical overload capacity of a boiler when operating at full power. This percentage is vital for understanding the operational flexibility of the boiler, as it indicates the maximum power output that the boiler can sustain beyond its normal full power capacity for short periods without risking damage or operational issues.

This overload capacity permits brief surges in demand, such as during peak usage times, or to compensate for inefficiencies in operations. Knowing that a boiler can operate at this increased capacity allows for better management of energy production and helps maintain efficiency during varying load demands.

Other percentages, while they may reflect different operational scenarios, do not appropriately capture the expected overload capacity of standard boilers in common applications. Thus, 120% is recognized in the industry as a safe and effective margin to ensure reliability and performance under temporarily elevated load conditions.