1. What is Cooling Load Calculation?

Cooling load calculation is the process of determining the amount of heat energy that must be removed from a space to maintain comfortable temperature and humidity levels. It consists of latent heat load (moisture removal) and sensible heat load (temperature reduction).

2. How Does the Calculator Work?

The calculator uses the fundamental cooling load equation:

Where:

• \( Q_{latent} \) — Latent heat load for moisture removal (BTU/h)
• \( Q_{sensible} \) — Sensible heat load for temperature reduction (BTU/h)

Explanation: The total cooling load represents the sum of energy required to remove both latent heat (humidity control) and sensible heat (temperature control) from the conditioned space.

3. Importance of Cooling Load Calculation

Details: Accurate cooling load calculation is essential for proper HVAC system sizing, energy efficiency optimization, occupant comfort, and preventing equipment over-sizing or under-sizing issues.

4. Using the Calculator

Tips: Enter both latent and sensible heat loads in BTU/h. Ensure values are positive and represent accurate measurements from load calculation software or manual calculations.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between latent and sensible heat?
A: Sensible heat changes air temperature, while latent heat changes moisture content without changing temperature.

Q2: How are latent and sensible loads typically determined?
A: Through detailed calculations considering building orientation, insulation, occupancy, equipment, ventilation, and climate data.

Q3: What is a typical ratio between sensible and latent loads?
A: Varies by climate and application, but often ranges from 60-80% sensible to 20-40% latent in commercial buildings.

Q4: Why is accurate load calculation important?
A: Prevents energy waste from over-sized systems and ensures adequate capacity from under-sized systems, improving comfort and efficiency.

Q5: Can this calculator be used for residential systems?
A: Yes, the fundamental equation applies to all air conditioning applications, though load determination methods may vary.