How a Chiller, Cooling Tower and Air Handling Unit work together

The video tutorial explains the operation of centralized chilled water systems commonly used in office buildings. It covers the components such as chillers, pumps, and cooling towers, and describes the flow and temperature of chilled water. The function of air handling units and the heat exchange process are detailed, along with the refrigeration cycle and condenser water flow. The tutorial also discusses system redundancy and complexity, emphasizing the importance of having backup systems in large buildings.

What is the primary purpose of a centralized chilled water system in office buildings?

• To heat the building

• To supply water

• To provide electricity

• To cool the building

Which component of the chiller is responsible for producing chilled water?

• Cooling tower

• Evaporator

• Compressor

• Condenser

What is the typical temperature range of chilled water leaving the evaporator?

• 14 to 16 degrees Celsius

• 10 to 12 degrees Celsius

• 0 to 2 degrees Celsius

• 6 to 8 degrees Celsius

What is the function of air handling units in the chilled water system?

• To humidify the air

• To cool the air

• To heat the air

• To filter the air

How does the temperature of water change as it passes through the air handling unit's coil?

• It increases

• It fluctuates

• It remains constant

• It decreases

What is the role of the refrigerant in the chiller's refrigeration cycle?

• To supply power

• To heat the water

• To transfer heat

• To provide insulation

What happens to the condenser water as it passes through the cooling tower?

• It evaporates completely

• It gains heat

• It loses heat

• It remains at the same temperature

Why are the chilled water and condenser water systems kept separate?

• To ensure efficient heat transfer

• To maintain different pressure levels

• To prevent mixing of refrigerants

• To avoid water contamination

What does 'N + 1' redundancy mean in the context of chilled water systems?

• Having one extra unit than needed

• Operating all units simultaneously

• Using only one unit at a time

• Having no backup units

In larger buildings, why might there be multiple chilled water systems?

• To simplify maintenance

• To handle different cooling needs

• To increase water flow

• To reduce costs