Sensible Heat Gain per person using Sensible Heat Gain from people Calculator

Sensible Heat Gain per Person Formula:

\[ q_s = \frac{QS}{n \times CLF} \]

Sensible Heat Gains per Person (W):

1. What is Sensible Heat Gain per Person?

Definition: This calculator estimates the sensible heat gain per person based on total sensible heat gain from people, number of people, and cooling load factor.

Purpose: It helps HVAC professionals determine the heat contribution per person in air conditioned spaces.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ q_s = \frac{QS}{n \times CLF} \]

Where:

\( q_s \) — Sensible heat gains per person (W)
\( QS \) — Sensible Heat Gain from people (W)
\( n \) — Number of people
\( CLF \) — Cooling load factor for people (typically 1.2 ±5%)

Explanation: The total sensible heat gain is divided by the product of number of people and cooling load factor to get heat gain per person.

3. Importance of Sensible Heat Gain Calculation

Details: Proper heat gain estimation ensures accurate HVAC system sizing, thermal comfort, and energy efficiency.

4. Using the Calculator

Tips: Enter the sensible heat gain in watts, number of people, and cooling load factor (default 1.2 ±5%). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is sensible heat gain?
A: Sensible heat gain is the heat that causes a change in temperature of the air, as opposed to latent heat which causes humidity changes.

Q2: Why is the cooling load factor important?
A: The CLF accounts for the time-varying nature of heat gains from people and their activities.

Q3: What's a typical CLF value?
A: Most calculations use 1.2 ±5%, but this can vary based on activity type and duration.

Q4: How do I find the total sensible heat gain?
A: Use heat gain tables or measurements based on the number and activity level of occupants.

Q5: Does this include latent heat gain?
A: No, this calculator only considers sensible heat gain. Latent heat gain would require additional calculations.