Chiller Plant Function and Components

Overview

• The primary function of a chiller plant is to remove heat from a closed room in a building.
• Explained using a 'Truck Experiment' for better understanding.

5 Important Equipment in Chiller Plant

1. Chiller
2. Cooling Tower
3. Air Handling Unit (AHU)
4. Condenser Water Pump
5. Chilled Water Pump

Process of Heat Removal

• Chilled water flows from the Evaporator to the AHU through the Supply Line.
• AHU:
  • Collects heat from the room via the Return Duct.
  • Transfers heat to the chilled water.
  • Sends cooled air back into the room through the Supply Duct.

Continuous Operation

• The AHU consistently manages heat collection and transfer.
• Heat collected by the AHU is sent back to the evaporator through the chilled water return line.

Role of Refrigerant

• Inside the Evaporator:
  • Refrigerant absorbs heat from the chilled water.
  • Chilled water returns to the AHU after cooling.
• Refrigerant transports heat to the Condenser.

Condenser Process

• The Refrigerant gives heat to the Condenser Water.
• The Condenser Water:
  • Absorbs heat from the refrigerant and sends it to the Cooling Tower.
• In the Cooling Tower:
  • Heat is expelled to the atmosphere via a fan.
  • The cooled condenser water returns to the condenser through the system.

Conclusion

• The chiller plant continuously processes to remove heat from a closed room and releases it outside.
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