Chiller Plant Overview

Function of a Chiller Plant

• Primary role: Remove heat from a closed room in a building.

Key Equipment in a Chiller Plant

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

Working Process of a Chiller Plant

• Chilled Water Flow:

  • Chilled water from the evaporator of the chiller travels through the supply line to the AHU.

• Heat Collection by AHU:

  • AHU collects heat from the room via the return duct.
  • The heat is transferred to the chilled water, which cools the air before it is released back into the room through the supply duct.
  • This process is continuous, with the AHU managing the system.

• Heat Transport:

  • The heat collected by AHU is sent back to the evaporator through the chilled water return line.
  • Refrigerant in the evaporator absorbs heat from the chilled water, cooling it further.

• Refrigerant Cycle:

  • The chilled water, now cooled, returns to the AHU to repeat the process.
  • The refrigerant carrying the collected heat moves to the condenser.
  • In the condenser, refrigerant releases heat to the condenser water.
  • The cooled refrigerant then returns to the evaporator via an expansion valve.

• Role of the Expansion Valve:

  • The expansion valve enhances the cooling of the refrigerant before it re-enters the evaporator.

• Cooling Tower Function:

  • The condenser water carries the heat from the refrigerant to the cooling tower.
  • Heat is expelled into the atmosphere through a fan in the cooling tower.
  • The cooled condenser water returns to the condenser to complete the cycle.

Conclusion

• The chiller plant continuously cycles to remove heat from closed rooms and release it into the atmosphere.
• Encouragement to like, share, and subscribe to the Zebra Learnings Channel for more educational content.