Chilled Water Cooling Capacity Calculator
Here’s a comprehensive table summarizing all you need to know about chilled water cooling capacity:
Chilled Water Cooling Capacity: Key Parameters and Information
| Parameter | Value or Range |
|---|---|
| Cooling Capacity (kW) | 200-30003 |
| Mass Flow Rate (kg/s) | Varies by chiller size |
| Specific Heat of Water (kJ/kg/K) | 4.18 |
| Temperature Delta (K) | Average 5-10 |
| Conversion (BTU/hr) | Output = Cooling Capacity * 3412 |
| Common Applications | HVAC, Industrial Processes, Food Processing |
| Cooling Capacity Formula | Q = m’ * Cp * ΔT1 |
| EER (Energy Efficiency Ratio) | Up to 5.793 |
| ESEER (European Seasonal Energy Efficiency Ratio) | Up to 8.983 |
| Refrigerants Used | R134a or R513A (lower GWP alternative)3 |
| Compressor Types | Turbocor compressors (low maintenance, high efficiency)3 |
Additional Information:
- Calculation Method: To calculate cooling capacity, multiply the mass flow rate of water by its specific heat and the change in temperature1.
- Factors Affecting Cooling Capacity:
- Ambient temperature
- Evaporator performance
- Fluid properties (e.g., glycol vs. water)
- Mass flow rate
- Condenser condition (dust accumulation, fouling)4
- Sizing Considerations: When sizing a chiller, it’s recommended to oversize by about 20% to account for inefficiencies and external factors5.
- Units Conversion:
- 1 RT (ton of refrigeration) = 12,000 BTU/hr = 3,516.85 W
- 1 BTU/hr = 0.29307107 W
- 1 W = 3.412142 BTU/hr7
- Maintenance: Regular maintenance, including cleaning condenser fins and using corrosion inhibitors, is crucial for maintaining optimal cooling capacity7.
This table provides a comprehensive overview of chilled water cooling capacity, including key parameters, calculation methods, and important considerations for system design and operation.