1. What is Cooling Tower Capacity?

Definition: Cooling tower capacity measures the heat removal capability of a cooling tower, typically expressed in kCal/hr or BTU/hr.

Purpose: It helps engineers determine the appropriate cooling tower size for specific heat load requirements in HVAC and industrial processes.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( m \) — Mass flow rate of water (kg/hr)
• \( c \) — Specific heat of water (kCal/kg·°C, typically 1.0)
• \( \Delta T \) — Temperature difference between inlet and outlet (°C)

Explanation: The capacity is calculated by multiplying the water flow rate by its specific heat and the temperature difference.

3. Importance of Cooling Tower Capacity

Details: Proper capacity calculation ensures efficient cooling system operation, prevents undersizing (inadequate cooling) or oversizing (wasted energy).

4. Using the Calculator

Tips: Enter the mass flow rate in kg/hr, specific heat (default 1.0 kCal/kg·°C for water), and temperature difference in °C. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical temperature difference (ΔT) for cooling towers?
A: Most cooling towers operate with ΔT between 5-15°C, depending on design and application.

Q2: How do I convert kCal/hr to BTU/hr?
A: Multiply kCal/hr by 3.968 to get BTU/hr (1 kCal = 3.968 BTU).

Q3: When would I change the specific heat value?
A: Use different values when working with fluids other than water (e.g., glycol mixtures have lower specific heat).

Q4: How do I find the mass flow rate?
A: Measure flow rate in m³/hr and multiply by water density (1000 kg/m³ at 4°C).

Q5: Does this include system heat losses?
A: No, this calculates ideal capacity. For real systems, consider adding 10-20% safety factor.