1. What is Cooling Tower Capacity?

Definition: Cooling tower capacity measures the total heat removal capability of a cooling tower, including both sensible and latent heat components.

Purpose: It helps engineers and HVAC professionals properly size cooling towers for various applications.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q \) — Total cooling capacity (BTU)
• \( m \) — Mass flow rate of water (lb)
• \( c \) — Specific heat capacity of water (BTU/lb·°F)
• \( \Delta T \) — Temperature difference (°F)
• \( Q_{\text{latent}} \) — Latent heat component (BTU)

Explanation: The formula calculates both sensible heat (from temperature change) and latent heat (from evaporation) components of cooling.

3. Importance of Cooling Tower Capacity Calculation

Details: Accurate capacity calculation ensures proper cooling tower sizing, energy efficiency, and system reliability in HVAC and industrial processes.

4. Using the Calculator

Tips: Enter the mass flow rate, specific heat capacity (default 1.0 BTU/lb·°F for water), temperature difference, and latent heat (if applicable). All values must be ≥ 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between sensible and latent heat?
A: Sensible heat changes temperature (measured by ΔT), while latent heat changes state (evaporation) without temperature change.

Q2: When should I include latent heat in calculations?
A: Include latent heat when significant evaporation occurs in the cooling process, typically in open cooling towers.

Q3: What's a typical specific heat for water?
A: Pure water is approximately 1 BTU/lb·°F, but this can vary slightly with temperature and impurities.

Q4: How do I find the mass flow rate?
A: Measure flow rate in gallons per minute (GPM) and multiply by 8.34 lb/gal (for water).

Q5: What temperature difference should I use?
A: Use the difference between entering and leaving water temperatures (typically 10-30°F range).