On average, how much energy in a commercial building is consumed by HVAC systems?
Which of these is not one of the five main circuits of a typical air-conditioning system?
What does thermal mass mean?
What can happen if the NPSHa is lower than the NPSHr in an open loop circuit?
Test results
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Q: On average, how much energy in a commercial building is consumed by HVAC systems?
A: 20-30%
Q: On average, how much energy in a commercial building is consumed by HVAC systems?
A: 30-40%
Q: On average, how much energy in a commercial building is consumed by HVAC systems?
A: 40-50%
Q: Which of these is not one of the five main circuits of a typical air-conditioning system?
A: Refrigeration
Q: Which of these is not one of the five main circuits of a typical air-conditioning system?
A: Heat rejection
Q: Which of these is not one of the five main circuits of a typical air-conditioning system?
A: Thermal mass
Q: What does thermal mass mean?
A: It means that a building is capable of storing heat
Q: What does thermal mass mean?
A: It is the heat generated by lighting and people among other factors
Q: What does thermal mass mean?
A: It is another way of saying the building envelope
Q: What can happen if the NPSHa is lower than the NPSHr in an open loop circuit?
A: Nothing happens
Q: What can happen if the NPSHa is lower than the NPSHr in an open loop circuit?
A: It causes the system to restart
Q: What can happen if the NPSHa is lower than the NPSHr in an open loop circuit?
A: It can cause cavitation