1. What is a Fuel Lbs per Hour to Horsepower Calculator?

Definition: This calculator converts fuel mass flow rate to horsepower using the fuel's heating value.

Purpose: It helps engineers and technicians estimate engine power output based on fuel consumption.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( HP \) — Horsepower
• \( W_f \) — Fuel flow rate (pounds per hour)
• \( h_v \) — Heating value of fuel (BTU per pound)
• 2545 — Conversion factor (BTU per hour to HP)

Explanation: The formula converts the energy content of the fuel into mechanical power output.

3. Importance of Fuel-to-Power Calculation

Details: This calculation is crucial for engine performance analysis, fuel efficiency studies, and power plant design.

4. Using the Calculator

Tips: Enter the fuel flow rate in lb/hr and heating value in BTU/lb (default 18,500 for diesel). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the 2545 conversion factor?
A: It converts BTU per hour to horsepower (1 HP = 2545 BTU/hr).

Q2: What's a typical heating value for diesel?
A: Diesel fuel typically has a heating value of about 18,500 BTU per pound.

Q3: Does this calculate actual or theoretical horsepower?
A: This calculates theoretical power. Actual power will be lower due to efficiency losses.

Q4: How do I account for engine efficiency?
A: Multiply the result by the engine's thermal efficiency (typically 30-45% for diesel engines).

Q5: Can I use this for other fuels?
A: Yes, just adjust the heating value (e.g., ~19,000 for gasoline, ~23,900 for natural gas).