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

Latent Heat Gain per Person Formula:

\[ q_l = \frac{Q_l}{n} \]

Latent Heat Gains per Person:

1. What is Latent Heat Gain per Person?

Definition: Latent heat gains per person is the heat that results from an increase or decrease by per person, in the amount of moisture held by the air.

Purpose: It helps HVAC professionals calculate the cooling load required to maintain comfortable humidity levels in a space based on occupant count.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ q_l = \frac{Q_l}{n} \]

Where:

\( q_l \) — Latent heat gains per person (Watt)
\( Q_l \) — Total latent heat gain (Watt)
\( n \) — Number of people

Explanation: The total latent heat gain is divided by the number of people to determine the per-person contribution to the cooling load.

3. Importance of Latent Heat Calculation

Details: Proper latent heat calculation ensures accurate sizing of HVAC systems to handle both temperature and humidity control.

4. Using the Calculator

Tips: Enter the total latent heat gain in Watts, number of people, and tolerance percentage (default ±5%). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is typical latent heat gain per person?
A: Typically ranges from 30W (sedentary) to 60W (active) per person, but varies based on activity level.

Q2: Why include a tolerance percentage?
A: The tolerance accounts for variations in human activity, clothing, and environmental factors.

Q3: How do I determine total latent heat gain?
A: Measure or estimate based on occupancy, activity levels, and other moisture-producing sources.

Q4: Does this include sensible heat gain?
A: No, this calculator only addresses latent heat. Sensible heat should be calculated separately.

Q5: When would I adjust the tolerance?
A: Increase tolerance for spaces with highly variable occupancy or activity levels.