1
Because the fan pressure needed in air handlers are much greater than the pressure needed in water based hydronic systems.
2
Why is a mixing loop the best way to control a radiant system?
3
Hydronic systems take up much less space than forced air systems in a building. Why is that?
4
What effect does the introduction of radiant cooling systems have on the chilled water production?
5
What is the difference between sensible cooling and latent cooling?
Test results
Congratulations. You have passed the test and completed the High efficiency hydronic systems
Achieved badges:
01.
Q: Because the fan pressure needed in air handlers are much greater than the pressure needed in water based hydronic systems.
A: Because forced air systems need much more air volumes to transport the same amount of energy than is the case with water.
01.
Q: Because the fan pressure needed in air handlers are much greater than the pressure needed in water based hydronic systems.
A: Because the efficiency of pumps are much greater than the efficiency of fans.
01.
Q: Because the fan pressure needed in air handlers are much greater than the pressure needed in water based hydronic systems.
A: Because the fan pressure needed in air handlers are much greater than the pressure needed in water based hydronic systems.
02.
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
02.
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
02.
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
03.
Q: Hydronic systems take up much less space than forced air systems in a building. Why is that?
A: Because hydronic systems use water as the cooling media, and water can carry more energy than air. That means smaller systems are needed to transport the same amount of energy.
03.
Q: Hydronic systems take up much less space than forced air systems in a building. Why is that?
A: Because the water velocity in hydronic systems are higher than the velocity in ducts with air and hence much smaller pipes are used.
03.
Q: Hydronic systems take up much less space than forced air systems in a building. Why is that?
A: Because when using hydronic systems such as chilled ceilings and floors, there is no need for ventilation.
04.
Q: What effect does the introduction of radiant cooling systems have on the chilled water production?
A: With radiant cooling systems it is increasingly feasible to utilise sustainable chilled water sources for free cooling because the chilled water temperature is up to approx. 8 - 10 °C higher than with traditional systems.
04.
Q: What effect does the introduction of radiant cooling systems have on the chilled water production?
A: Radiant cooling systems require more or less the same chilled water temperature as traditional systems, which means the use of sustainable sources are at the same level.
04.
Q: What effect does the introduction of radiant cooling systems have on the chilled water production?
A: Production of chilled water from sustainable sources such as cold ground water or water from rivers and lakes is not feasible due to high initial investment and long distribution pipes.
05.
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
05.
Q: What is the difference between sensible cooling and latent cooling?
A: It is the same expressed with two different words
05.
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
06.
Q: When is zoning an advantage?
A: When a building has different requirements to temperature or when the internal load from occupants is different.
06.
Q: When is zoning an advantage?
A: When a building is more than 1000 m2
06.
Q: When is zoning an advantage?
A: When a building has more than three floors