When using a hydronic system instead of an air-based system, how much extra floor space might the building owner get from space efficiency gains?
What characterises forced-air systems for heating or cooling?
In a cooling system, a large body or surface with a lower temperature than the other surfaces in a room will…
What characterises hydronic systems for heating or cooling?
How much energy is potentially saved when using a hydronic system instead of an air-based system?
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Q: Water’s heat capacity is how many times greater than that of air?
A: 2.1
Q: Water’s heat capacity is how many times greater than that of air?
A: 2.4
Q: Water’s heat capacity is how many times greater than that of air?
A: 4.2
Q: When using a hydronic system instead of an air-based system, how much extra floor space might the building owner get from space efficiency gains?
A: Can be as high as 5%, because of the significantly improved space performance
Q: When using a hydronic system instead of an air-based system, how much extra floor space might the building owner get from space efficiency gains?
A: No difference, both systems take up a lot of space
Q: When using a hydronic system instead of an air-based system, how much extra floor space might the building owner get from space efficiency gains?
A: Up to 5% gain with the air-based system, because air is lighter than water
Q: What characterises forced-air systems for heating or cooling?
A: Either high air volumes or high air velocities are required for energy transport, not both
Q: What characterises forced-air systems for heating or cooling?
A: They depend on low air volumes for energy transport, often at low air velocities
Q: What characterises forced-air systems for heating or cooling?
A: They depend on high air volumes for energy transport, often at high air velocities
Q: In a cooling system, a large body or surface with a lower temperature than the other surfaces in a room will…
A: …receive more radiation than it emits
Q: In a cooling system, a large body or surface with a lower temperature than the other surfaces in a room will…
A: …emit more radiation than it receives
Q: In a cooling system, a large body or surface with a lower temperature than the other surfaces in a room will…
A: …emit and receive the same amount of radiation
Q: What characterises hydronic systems for heating or cooling?
A: Lower energy distribution costs and improved space efficiency
Q: What characterises hydronic systems for heating or cooling?
A: No change in energy distribution costs; improved space efficiency
Q: What characterises hydronic systems for heating or cooling?
A: Lower energy distribution costs; no change in space efficiency
Q: How much energy is potentially saved when using a hydronic system instead of an air-based system?
A: Up to 25%
Q: How much energy is potentially saved when using a hydronic system instead of an air-based system?
A: Up to 35%
Q: How much energy is potentially saved when using a hydronic system instead of an air-based system?
A: More than 40%