BTU Formula:
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Definition: This calculator estimates the British Thermal Units (BTU) based on mass and temperature change.
Purpose: It helps determine the energy required to change the temperature of a substance, useful for HVAC, heating, and cooling applications.
The calculator uses the formula:
Where:
Explanation: The energy required to change a substance's temperature is proportional to its mass and the temperature difference.
Details: Proper BTU estimation ensures correct sizing of heating/cooling systems, energy efficiency, and cost-effective operation.
Tips: Enter the mass in pounds and temperature change in °F. All values must be > 0.
Q1: What is a BTU?
A: A British Thermal Unit is the amount of energy needed to raise 1 pound of water by 1°F.
Q2: Does this work for all materials?
A: This is a basic calculation. Different materials have specific heat capacities that may require adjustments.
Q3: How do I find the mass of air or water?
A: For water, 1 gallon ≈ 8.34 lb. For air, you'll need volume and density information.
Q4: Can I use this for cooling calculations?
A: Yes, the same formula applies for both heating and cooling.
Q5: What about phase changes?
A: This calculator doesn't account for latent heat during phase changes (like water to steam).