Why is a mixing loop the best way to control a radiant system?
What is the difference between sensible cooling and latent cooling?
When is zoning an advantage?
What influence does the introduction of radiant cooling systems have on other building services?
The indoor climate in a building with hydronic cooling is better than in a building with a forced air system. Why?
The heat energy distribution costs of hydronic systems are about 1/10 of the cost of a forced air system. How come?
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Q: Why is a mixing loop the best way to control a radiant system?
A: Because flow rate and temperature can be adjusted according to the desired performance of the radiant surface
Q: Why is a mixing loop the best way to control a radiant system?
A: Mixing loops allow for constant flow on both the primary and secondary side, which ensures reduced pumping costs
Q: Why is a mixing loop the best way to control a radiant system?
A: Because temperature is quickly and accurately adjusted in the radiant surface
Q: What is the difference between sensible cooling and latent cooling?
A: Sensible cooling involves reduction in temperature while latent cooling involves removal of humidity from the air
Q: What is the difference between sensible cooling and latent cooling?
A: It is the same expressed with two different words
Q: What is the difference between sensible cooling and latent cooling?
A: Sensible cooling involves removal of humidity from the air while latent cooling involves reduction in temperature
Q: When is zoning an advantage?
A: When a building has different requirements to temperature or when the internal load from occupants is different.
Q: When is zoning an advantage?
A: When a building is more than 1000 m2
Q: When is zoning an advantage?
A: When a building has more than three floors
Q: What influence does the introduction of radiant cooling systems have on other building services?
A: Air volumes, air handlers and air ducts can be reduced in size because radiant cooling systems take care of the sensible heat loads and a dedicated outdoor air systems can be introduced (DOAS).
Q: What influence does the introduction of radiant cooling systems have on other building services?
A: Air handlers will still need the usual air recirculation functionality because the need for outdoor air is left unaffected.
Q: What influence does the introduction of radiant cooling systems have on other building services?
A: Since the radiant system takes care of the total cooling load, cooling coils in air handlers can be left out.
Q: The indoor climate in a building with hydronic cooling is better than in a building with a forced air system. Why?
A: Because chilled ceilings and floors removes latent heat loads much more efficiently than forced air systems.
Q: The indoor climate in a building with hydronic cooling is better than in a building with a forced air system. Why?
A: Because the use of hydronic systems for removing sensible heat loads means that less air is needed, which results in lower air velocities, less draft, and less noise.
Q: The indoor climate in a building with hydronic cooling is better than in a building with a forced air system. Why?
A: Because hydronic systems with chilled ceilings and floors can remove both sensitive and latent heat load at the same time.
Q: The heat energy distribution costs of hydronic systems are about 1/10 of the cost of a forced air system. How come?
A: Because forced air systems need much more air volumes to transport the same amount of energy than is the case with water.
Q: The heat energy distribution costs of hydronic systems are about 1/10 of the cost of a forced air system. How come?
A: Because the efficiency of pumps are much greater than the efficiency of fans.
Q: The heat energy distribution costs of hydronic systems are about 1/10 of the cost of a forced air system. How come?
A: Because the fan pressure needed in air handlers are much greater than the pressure needed in water based hydronic systems.