1. What is Rated Boiler Horsepower?

Definition: Boiler horsepower (BHP) is a measure of a boiler's capacity to deliver steam to a steam engine.

Purpose: It helps in sizing and comparing boiler capacities for industrial and power generation applications.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( BHP \) — Boiler horsepower
• \( Q_{btu} \) — Heat output in BTU per hour

Explanation: One boiler horsepower is defined as the ability to evaporate 34.5 pounds of water per hour at 212°F, which equals 33,475 BTU/h.

3. Importance of Boiler Horsepower Calculation

Details: Proper BHP calculation ensures correct boiler sizing for steam requirements, energy efficiency, and safety compliance.

4. Using the Calculator

Tips: Enter the heat output in BTU/h. The value must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: How does boiler horsepower differ from mechanical horsepower?
A: Boiler horsepower is a measure of steam production capacity, while mechanical horsepower measures work output. 1 BHP ≈ 13 mechanical HP.

Q2: What's the significance of 33,475 BTU/h?
A: This is the energy required to evaporate 34.5 lbs of water per hour at 212°F, the standard definition of 1 boiler horsepower.

Q3: How do I find my boiler's heat output?
A: Check manufacturer specifications or calculate from fuel consumption and boiler efficiency.

Q4: Can I use this for electric boilers?
A: Yes, as long as you know the heat output in BTU/h (1 kW = 3412 BTU/h).

Q5: What's a typical BHP rating for residential boilers?
A: Residential boilers typically range from 1-10 BHP, while industrial boilers can be 100+ BHP.