If a boiler evaporates 50,000 lbs of steam/hour and 10 pounds of steam is evaporated per square foot, what is the heating surface area?

To determine the heating surface area of the boiler, you can use the information provided in the question. The problem states that the boiler evaporates 50,000 pounds of steam per hour and that it evaporates 10 pounds of steam per square foot of heating surface area.

To find the heating surface area, you can use the following formula:

Heating Surface Area (sq ft) = Total Steam Evaporation (lbs/hr) / Steam Evaporation per sq ft (lbs/sq ft)

Substituting the given numbers:

Heating Surface Area = 50,000 lbs/hr ÷ 10 lbs/sq ft = 5,000 sq ft

This calculation shows that the heating surface area is 5,000 square feet, which aligns with the correct answer. By understanding how to apply the formula for calculating heating surface area, it becomes clear how these values relate in practical terms for the efficiency and design of boilers.