Cara Kerja AC Central Dengan Water Cooled Chiller
Summary
TLDRIn 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 3-5Β°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
- π¨ Central air conditioning in large buildings is explained using York brand chillers.
- βοΈ Chillers are refrigeration machines that cool water, and can produce temperatures of 3-5 degrees Celsius.
- π§ The refrigerant is compressed, then passes through the expansion valve and condenses in the evaporator to cool water.
- π° 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.
- π’ The cooled water is distributed to the Air Handling Unit (AHU) to regulate and process air before it's distributed to rooms.
- π¬οΈ The AHU uses a blower to pull in air through a filter, passes it through the evaporator, and then distributes cooled air through ducting.
- π₯ Because the chiller condenser has a high temperature, a cooling system using water is implemented.
- π¦ The CWP pump circulates water to the Cooling Tower, releasing heat from the condenser with the help of a blower motor.
- β»οΈ Water is cooled in the Cooling Tower and recirculated back to the chiller condenser unit to complete the cycle.
- π 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.
Outlines
π¬οΈ Introduction to Central Air Conditioning
The video opens with a greeting and a question about how air conditioning works in large buildings. The host introduces the topic of central air conditioning and mentions the use of York brand chillers, each with a capacity of 2000 TR. A chiller is a refrigeration machine designed to cool water, capable of producing water temperatures between 3-5Β°C. This sets the stage for a deeper explanation of the air conditioning process in large buildings.
βοΈ How the Chiller System Works
The host explains the core function of the chiller, which cools water by circulating refrigerant through the compressor, expansion valve, and evaporator. This refrigerant undergoes a phase change in the evaporator, cooling water that is then pumped through pipes using a centrifugal pump (CHWP), which has 180 HP and can deliver 2400 gallons per minute. This system provides the cool water needed for the air handling unit (AHU) to function.
π‘οΈ Air Handling Unit (AHU) Process
The video describes the Air Handling Unit (AHU), which processes and regulates air before distributing it throughout the building. The AHU uses a blower to draw in air through a filtered return channel, passing it through the evaporator where heat transfer cools the air. The cooled air is then delivered to various rooms through ducting, completing the process of air cooling in the building.
πΏ Cooling Tower and Condenser Process
The chiller's condenser generates a lot of heat, requiring a secondary cooling process using water circulated by the CWP pump. This water is pumped to the Cooling Tower, where it loses heat with the help of a blower motor before returning to the chiller condenser. Unlike the CHWP system, this setup doesn't use insulation on the pump and pipelines, ensuring effective heat dissipation.
π Conclusion and Sign Off
The video wraps up with a brief recap of how the central air conditioning system works and its utility in large buildings. The host expresses hope that the explanation was helpful and encourages viewers to like, comment, and subscribe before signing off and promising to return in the next video.
Mindmap
Keywords
π‘Chiller
π‘Compressor
π‘Evaporator
π‘Pump (CHWP)
π‘AHU (Air Handling Unit)
π‘Cooling Tower
π‘Refrigerant
π‘CWP (Condenser Water Pump)
π‘Blower
π‘Ducting
Highlights
Introduction to central air conditioning in large buildings.
The video uses York brand chillers with a capacity of 2000 TR each.
Chiller's main function is to cool water to a temperature between 3-5 degrees Celsius.
Refrigerant from the compressor is pressed through the expansion valve and condensed into the evaporator.
The cooled water is distributed through pipes with the help of a centrifugal type pump known as CHWP.
The CHWP pump has a power of 180 HP and can produce 2400 gallons per minute.
AHU, or Air Handling Unit, regulates and processes air before distribution to rooms.
Air is drawn through filters via a blower, passes through the evaporator, cooling the air.
Cooled air is distributed to the rooms through ducting.
The chiller's condenser has a high temperature, so a cooling system using water media is utilized.
The CWP pump circulates water to the Cooling Tower, which cools the water using a blower motor.
Heat is released in the Cooling Tower, lowering the water's temperature.
The cooled water is recirculated back to the chiller condenser for further cooling.
This explains the process of how a central air conditioning system cools large buildings.
Encourages viewers to like, comment, and subscribe to the channel.
Transcripts
hello everyone, back again with this channel, have
you guys thought about how air conditioning works in large buildings,
therefore in this video I will explain how central air conditioning works.
Enjoy watching
this video using several York brand chillers with a capacity of 2000 each. TR
chiller is a refrigeration machine that has the main function of cooling water. This
chiller is capable of producing water temperature with a temperature of 3-5 degrees Celsius.
The refrigerant from the compressor is pressed through the expansion valve and then condensed into the evaporator
inside the evaporator .
the cooling load of the area or room
then the cooled water is distributed through pipes
assisted by using a centrifugal type
pump. This pump is also known as chwp
. The following pump has a power of 180 HP which can produce 2400 gallons per minute
up to the AHU.
AHU is a handling unit ud the method used to regulate and process the air
before it is distributed to the building or rooms that will be conditioned
. The air is sucked in using a blower through the
filtered return channel through the filter and passes through the evaporator
so that heat transfer occurs which makes the air temperature lower
. channeled through ducting so that it reaches the room
that is the process of cooling the air in the room
and then because the chiller condenser has a high temperature
, a cooling system is made using water media
that is circulated by the CWP pump to the Cooling Tower unit
using the same type of pump as the CHWP
, it just doesn't use an insulating layer on the pump and pipelines when the
water arrives at the Cooling Tower so that heat is released which is assisted by a blower motor
, then the water will experience a decrease in temperature and be recirculated back to the chiller condenser unit
, that's how the home cooler works. wish with a central AC system
hopefully this video is useful don't forget to like, comment & subscribe
I say goodbye, See you next video
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