Note:

The formula for latent heat gain from infiltration calculates the amount of heat added due to moisture in the incoming air. This is essential for maintaining humidity control and overall thermal comfort in indoor environments.

Parameters:

• Q_latent: The total latent heat gained (measured in BTU/hr for Imperial and Watts for SI).
• Airflow (CFM or m³/s): The volumetric flow rate of air entering the space.
• ΔW (Humidity Ratio Difference): The difference in the humidity ratio (water vapor content) between outdoor and indoor air.
• Constants:
  • 0.7: Imperial unit constant for airflow in CFM.
  • 3010: SI unit constant for airflow in m³/s.

Real-Life Applications:

• HVAC System Design: Helps in sizing dehumidification systems for maintaining indoor humidity levels.
• Food Storage and Processing: Ensures moisture control to prevent spoilage and maintain quality.
• Textile Industry: Regulates humidity to maintain fabric quality and avoid static electricity.
• Healthcare Facilities: Maintains sterile environments by controlling moisture levels.

Why Include in Environmental Calculators?

Incorporating this formula into environmental calculators is crucial for accurately determining latent heat load. It ensures optimal energy use in HVAC systems by addressing humidity, which is essential for comfort and equipment efficiency.

Conclusion:

Latent heat gain significantly impacts indoor air quality and energy efficiency. Accurate calculation and management of this parameter help in designing sustainable and cost-effective environmental control systems.