Enter the boiler horsepower and the factor into the calculator to determine the steam production in pounds per hour (Lbs/Hr).
Boiler HP to Lbs/Hr Formula
The following formula is used to calculate the steam production in pounds per hour for a given boiler horsepower.
L = HP * F
Variables:
- L is the steam production in pounds per hour (Lbs/Hr)
- HP is the boiler horsepower
- F is the factor (default is 34.5)
To calculate the steam production in pounds per hour, multiply the boiler horsepower by the factor (typically 34.5).
| Boiler HP | Steam Flow (lb/hr) | Steam Flow (kg/hr) |
|---|---|---|
| 5 | 172.500 | 78.245 |
| 10 | 345.000 | 156.489 |
| 15 | 517.500 | 234.734 |
| 20 | 690.000 | 312.979 |
| 25 | 862.500 | 391.223 |
| 30 | 1035.000 | 469.468 |
| 40 | 1380.000 | 625.957 |
| 50 | 1725.000 | 782.447 |
| 60 | 2070.000 | 939.936 |
| 75 | 2587.500 | 1173.670 |
| 100 | 3450.000 | 1564.894 |
| 125 | 4312.500 | 1956.117 |
| 150 | 5175.000 | 2347.341 |
| 200 | 6900.000 | 3129.787 |
| 250 | 8625.000 | 3912.234 |
| 300 | 10350.000 | 4694.681 |
| 400 | 13800.000 | 6259.575 |
| 500 | 17250.000 | 7824.468 |
| 750 | 25875.000 | 11736.703 |
| 1000 | 34500.000 | 15648.937 |
| * Rounded to 3 decimals. Uses default boiler factor: 1 HP = 34.5 lb/hr ≈ 15.649 kg/hr (1 lb = 0.453592 kg). | ||
What is Boiler Horsepower?
Boiler horsepower is a unit of measurement used to express the power output of a steam boiler. One boiler horsepower is defined as the ability to evaporate 34.5 pounds of water into steam at 212 degrees Fahrenheit per hour. This unit is commonly used in the steam generation industry to specify the capacity of boilers and to compare the performance of different boilers. Boiler horsepower is a crucial parameter in the design, selection, and operation of steam boilers, as it directly impacts the efficiency and effectiveness of the steam production process.
How to Calculate Boiler HP to Lbs/Hr?
The following steps outline how to calculate the steam production in pounds per hour from boiler horsepower.
- First, determine the boiler horsepower (HP).
- Next, determine the factor (F), which is typically 34.5.
- Next, calculate the steam production using the formula L = HP * F.
- Finally, calculate the steam production in pounds per hour (Lbs/Hr).
- After inserting the values and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
Boiler Horsepower (HP) = 10
Factor (F) = 34.5