Chiller Plant Working Principle by Truck Experiment | Animation | HVAC |

Summary

This video explains the working principle of a chiller plant, which is used to remove heat from a building’s closed space. It covers the five key components: Chiller, Cooling Tower, AHU, Condenser Water Pump, and Chilled Water Pump. The chilled water circulates between the evaporator and AHU, absorbing and releasing heat, while the refrigerant carries the heat to the condenser and then to the cooling tower, where it's expelled to the atmosphere. The process is continuous, ensuring effective cooling of the building. The video aims to provide a clear understanding of how a chiller plant operates.

Takeaways

• 😀 A chiller plant's primary function is to remove heat from a closed room in a building.
• 😀 The five important components of a chiller plant are: Chiller, Cooling Tower, AHU, Condenser Water Pump, and Chilled Water Pump.
• 😀 Chilled water from the evaporator of the chiller travels through the supply line to the AHU for heat exchange.
• 😀 The AHU absorbs heat from the room via the return duct and transfers it to the chilled water.
• 😀 Chilled water is cooled by the refrigerant inside the evaporator, continuing the heat exchange cycle.
• 😀 The cooled chilled water returns to the AHU to repeat the heat exchange process with the room air.
• 😀 The refrigerant takes the collected heat from the chilled water and transfers it to the condenser.
• 😀 In the condenser, the refrigerant releases the heat to the condenser water, which is cooled by the cooling tower.
• 😀 The cooling tower expels the collected heat into the atmosphere through a fan.
• 😀 The entire cycle of heat absorption, transfer, and release is continuous, ensuring the building stays cool.
• 😀 The chiller plant's system operates efficiently through a continuous loop of heat exchange between the refrigerant, chilled water, and condenser water.

Q & A

What is the primary function of a chiller plant?

The primary function of a chiller plant is to remove heat from a closed room in a building, helping to maintain a comfortable temperature.

What are the five important equipment in a chiller plant?

The five important equipment in a chiller plant are: Chiller, Cooling Tower, AHU (Air Handling Unit), Condenser Water Pump, and Chilled Water Pump.

How does chilled water circulate through the system?

Chilled water from the evaporator of the chiller is sent through the supply line to the AHU, which absorbs heat from the room. The warmed water then returns to the chiller's evaporator for re-cooling.

What role does the AHU play in the chiller plant system?

The AHU (Air Handling Unit) circulates air in the building and exchanges heat with the chilled water. It collects heat from the room and transfers it to the chilled water.

How does the refrigerant contribute to the cooling process?

Refrigerant inside the evaporator absorbs heat from the chilled water and evaporates. The heated refrigerant then moves to the condenser, where it releases the heat to the condenser water.

What happens to the condenser water in the chiller plant?

Condenser water absorbs heat from the refrigerant and is sent to the cooling tower, where the heat is expelled into the atmosphere. The cooled water then returns to the condenser to repeat the cycle.

How does the cooling tower function in a chiller plant?

The cooling tower expels the heat absorbed by the condenser water into the atmosphere through a fan, helping to cool the water before it is returned to the condenser.

What is the role of the expansion valve in the chiller system?

The expansion valve controls the flow of refrigerant into the evaporator. It allows the refrigerant to expand and cool further, enhancing the heat absorption process.

How does the process in a chiller plant continue uninterrupted?

The process is continuous because the chilled water, refrigerant, and condenser water circulate through the system, with heat being absorbed, transported, and expelled in an ongoing cycle.

Why is it important for a chiller plant to maintain this continuous cycle?

The continuous cycle ensures that heat is constantly removed from the building, keeping the indoor environment cool and comfortable, while also expelling the heat safely into the atmosphere.