1. What is Chiller Capacity?

Chiller capacity refers to the cooling power of a chiller system, typically measured in tons. One ton of cooling equals 12,000 BTU per hour, which represents the amount of heat required to melt one ton of ice in 24 hours.

2. How Does the Calculator Work?

The calculator uses the chiller capacity formula:

Where:

• \( GPM \) — Flow rate in gallons per minute
• \( \Delta T \) — Temperature difference in °F
• \( 500 \) — Conversion factor (8.33 lb/gal × 60 min/hr)
• \( 12,000 \) — BTU per hour in one ton of cooling

Explanation: The formula calculates the heat removal capacity based on water flow rate and temperature difference across the chiller.

3. Importance of Chiller Capacity Calculation

Details: Accurate chiller capacity calculation is crucial for proper system sizing, energy efficiency optimization, and ensuring adequate cooling for industrial processes, commercial buildings, and HVAC systems.

4. Using the Calculator

Tips: Enter GPM (gallons per minute) and ΔT (temperature difference in °F). Both values must be positive numbers. The calculator will provide the chiller capacity in tons.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical ΔT for chiller systems?
A: Most chiller systems operate with a ΔT between 10-20°F, with 10°F being common for standard applications.

Q2: How does water temperature affect chiller capacity?
A: Higher ΔT values result in greater chiller capacity, while lower ΔT values reduce capacity for the same flow rate.

Q3: What factors influence chiller capacity?
A: Key factors include flow rate (GPM), temperature difference (ΔT), chiller efficiency, refrigerant type, and ambient conditions.

Q4: How do I convert tons to other units?
A: 1 ton = 12,000 BTU/hr = 3.517 kW = 3,024 kcal/h. Use appropriate conversion factors for your needs.

Q5: Why is proper chiller sizing important?
A: Oversized chillers cycle frequently, reducing efficiency and lifespan. Undersized chillers cannot meet cooling demands, leading to system failure.