Question 1 of 4
Intermediate

What does thermal mass mean?

Question 2 of 4
Intermediate

How many main types of air-conditioning systems are there?

Question 3 of 4
Intermediate

On average, how much energy in a commercial building is consumed by HVAC systems?

Question 4 of 4
Intermediate

What can happen if the NPSHa is lower than the NPSHr in an open loop circuit?

Question 4 of 4
Intermediate

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1: What does thermal mass mean?
It means that a building is capable of storing heat
1: What does thermal mass mean?
It is the heat generated by lighting and people among other factors
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1: What does thermal mass mean?
It is another way of saying the building envelope
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2: How many main types of air-conditioning systems are there?
2
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2: How many main types of air-conditioning systems are there?
3
2: How many main types of air-conditioning systems are there?
4
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3: On average, how much energy in a commercial building is consumed by HVAC systems?
20-30%
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3: On average, how much energy in a commercial building is consumed by HVAC systems?
30-40%
3: On average, how much energy in a commercial building is consumed by HVAC systems?
40-50%
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4: What can happen if the NPSHa is lower than the NPSHr in an open loop circuit?
Nothing happens
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4: What can happen if the NPSHa is lower than the NPSHr in an open loop circuit?
It causes the system to restart
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4: What can happen if the NPSHa is lower than the NPSHr in an open loop circuit?
It can cause cavitation