1. What is BTU Cooling per Person?

Definition: This calculator estimates the cooling capacity needed based on the number of people in a space and the BTU output per person.

Purpose: It helps HVAC professionals and facility managers determine cooling requirements for occupied spaces.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q \) — Total cooling required (BTU/h)
• \( N \) — Number of people in the space
• \( \text{BTU/person} \) — Heat output per person (typically 400-600 BTU/h)

Explanation: The number of people is multiplied by the average heat output per person to determine the total cooling capacity needed.

3. Importance of Cooling Calculation

Details: Proper cooling estimation ensures comfortable indoor temperatures, proper HVAC sizing, and energy efficiency.

4. Using the Calculator

Tips: Enter the number of people and BTU per person (default 500 BTU/h). Number of people must be ≥ 1 and BTU/person typically 400-600.

5. Frequently Asked Questions (FAQ)

Q1: Why does each person generate heat?
A: The human body constantly generates heat through metabolism - about 400-600 BTU/h depending on activity level.

Q2: What's a typical BTU/person value?
A: For offices use 500 BTU/h, for restaurants 600 BTU/h, and for theaters 400 BTU/h.

Q3: When would I use higher BTU values?
A: Use higher values (600 BTU/h) for spaces with high activity levels or dense occupancy.

Q4: Is this the only factor in cooling calculations?
A: No, this is just the people component. You must also consider heat from equipment, lighting, and building envelope.

Q5: How does this relate to AC tonnage?
A: 12,000 BTU/h equals 1 ton of cooling. Divide your total BTU by 12,000 to get required AC tonnage.