1
Why is a mixing loop the best way to control a radiant system?
2
Because the fan pressure needed in air handlers are much greater than the pressure needed in water based hydronic systems.
3
The heat energy distribution costs of hydronic systems are about 1/10 of the cost of a forced air system. How come?
4
What is the difference between sensible cooling and latent cooling?
5
When is zoning an advantage?
6
What effect does the introduction of radiant cooling systems have on the chilled water production?
Test results
Congratulations. You have passed the test and completed the 5 - High efficiency hydronic systems
Achieved badges:
01.
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
01.
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
01.
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
02.
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.
02.
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.
02.
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.
03.
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.
03.
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.
03.
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.
04.
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
04.
Q: What is the difference between sensible cooling and latent cooling?
A: It is the same expressed with two different words
04.
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
05.
Q: When is zoning an advantage?
A: When a building has different requirements to temperature or when the internal load from occupants is different.
05.
Q: When is zoning an advantage?
A: When a building is more than 1000 m2
05.
Q: When is zoning an advantage?
A: When a building has more than three floors
06.
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.
06.
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.
06.
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.