Cara Kerja AC Central Dengan Water Cooled Chiller

Summary

In this video, the presenter explains how central air conditioning works, specifically in large buildings. Using York brand chillers, the video details how these machines cool water to 3-5°C, which is then distributed to various areas via centrifugal pumps. The air handling unit (AHU) processes and cools the air before distributing it throughout the building. The condenser's heat is removed using a cooling tower system, completing the process. This step-by-step explanation offers viewers a clear understanding of the central AC system. Don't forget to like, comment, and subscribe for more insights!

Takeaways

• 💨 Central air conditioning in large buildings is explained using York brand chillers.
• ❄️ Chillers are refrigeration machines that cool water, and can produce temperatures of 3-5 degrees Celsius.
• 🔧 The refrigerant is compressed, then passes through the expansion valve and condenses in the evaporator to cool water.
• 🚰 Cooled water is circulated through pipes using a centrifugal pump (CHWP) that has a power of 180 HP and a capacity of 2400 gallons per minute.
• 🏢 The cooled water is distributed to the Air Handling Unit (AHU) to regulate and process air before it's distributed to rooms.
• 🌬️ The AHU uses a blower to pull in air through a filter, passes it through the evaporator, and then distributes cooled air through ducting.
• 🔥 Because the chiller condenser has a high temperature, a cooling system using water is implemented.
• 💦 The CWP pump circulates water to the Cooling Tower, releasing heat from the condenser with the help of a blower motor.
• ♻️ Water is cooled in the Cooling Tower and recirculated back to the chiller condenser unit to complete the cycle.
• 👍 This video explains the working process of central air conditioning and encourages viewers to like, comment, and subscribe.

Q & A

What is the main function of a chiller in central air conditioning systems?

The main function of a chiller in central air conditioning systems is to cool water, which is then used to lower the air temperature in the building.

What is the temperature range that the York brand chiller in the video can produce?

The York brand chiller mentioned in the video can produce water temperatures ranging from 3 to 5 degrees Celsius.

How does the refrigerant flow in the chiller system?

In the chiller system, the refrigerant is compressed and pushed through the expansion valve, then condensed in the evaporator, where it helps cool the water.

What role does the centrifugal type pump (CHWP) play in the cooling process?

The centrifugal type pump (CHWP) helps distribute the cooled water through the pipes, allowing it to reach the Air Handling Unit (AHU) and subsequently cool the building.

What does AHU stand for, and what is its function?

AHU stands for Air Handling Unit. Its function is to regulate and process air before it is distributed to different areas of the building for air conditioning.

How does the air cooling process occur within the AHU?

In the AHU, air is sucked in using a blower, passed through a filter, and then through the evaporator. Heat transfer occurs, cooling the air, which is then distributed through ducts to different rooms.

Why is there a need for a cooling system for the chiller condenser?

The chiller condenser has a high temperature due to its role in the cooling process, so a cooling system is needed to lower its temperature using water that is circulated by a pump to the Cooling Tower.

What is the purpose of the Cooling Tower in the central air conditioning system?

The Cooling Tower helps release the heat absorbed by the water in the chiller condenser, allowing the water temperature to decrease before it is recirculated back to the chiller.

How is the cooled water circulated back to the chiller condenser after passing through the Cooling Tower?

After the water is cooled in the Cooling Tower, it is recirculated back to the chiller condenser unit to continue the cooling process.

What type of pump is used to circulate water to the Cooling Tower, and how does it differ from the CHWP?

A pump similar to the CHWP is used to circulate water to the Cooling Tower. However, unlike the CHWP, this pump and its pipelines do not have an insulating layer.