At 212°F, how much water does one boiler horsepower (bhp) evaporate in one hour?

One boiler horsepower (bhp) is defined as the ability to evaporate a specific amount of water at a given temperature. At 212°F, which is the boiling point of water at atmospheric pressure, one boiler horsepower typically evaporates 34.5 pounds of water per hour. This value is a standard measure used in engineering and boiler operations to quantify the thermal energy output of a boiler system.

The significance of this metric lies in its application for calculating the efficiency and performance capabilities of steam boilers. Understanding that one bhp can efficiently handle the evaporation of 34.5 pounds of water helps engineers and operators design and size boilers appropriately for various applications, ensuring they meet the steam demands of the systems they support.

Thus, when assessing the amount of water evaporated per bhp at 212°F, 34.5 pounds is recognized as the correct answer due to its basis in established boiler performance standards.