1
How did the Stargard project redesign the layout of mixers in the tank?
2
Why is it important to position mixers correctly?
3
What is the main purpose of a closed loop tank?
4
What is the aim of thrust-to-power sizing?
5
Which of these isn’t a main target for wastewater mixers?
6
Which of these describe the specific mixing power?
Test results
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Achieved badges:
01.
Q: How did the Stargard project redesign the layout of mixers in the tank?
A: They gathered four mixers in the middle of the tank
01.
Q: How did the Stargard project redesign the layout of mixers in the tank?
A: They spread four mixers across the tank
01.
Q: How did the Stargard project redesign the layout of mixers in the tank?
A: They remained in the same position, but were replaced with more powerful mixers
02.
Q: Why is it important to position mixers correctly?
A: To prevent the propellers from breaking
02.
Q: Why is it important to position mixers correctly?
A: To neutralise vortices
02.
Q: Why is it important to position mixers correctly?
A: To maximise the total bulk flow
03.
Q: What is the main purpose of a closed loop tank?
A: To create a steady, circulated flow
03.
Q: What is the main purpose of a closed loop tank?
A: To ensure a more energy-efficient solution
03.
Q: What is the main purpose of a closed loop tank?
A: To prevent damaging backflow
04.
Q: What is the aim of thrust-to-power sizing?
A: Maintain a steady momentum and a constant required thrust rate
04.
Q: What is the aim of thrust-to-power sizing?
A: Deliver a sufficient thrust with the least possible energy consumption
04.
Q: What is the aim of thrust-to-power sizing?
A: Run the power at the limit to deliver maximum thrust when necessary
05.
Q: Which of these isn’t a main target for wastewater mixers?
A: To blend liquid with solid particles
05.
Q: Which of these isn’t a main target for wastewater mixers?
A: To ensure quick drainage from the tank
05.
Q: Which of these isn’t a main target for wastewater mixers?
A: To keep solid particles in suspension
06.
Q: Which of these describe the specific mixing power?
A: The ratio between the propeller power and the liquid volume
06.
Q: Which of these describe the specific mixing power?
A: The ratio between the liquid volume and the solid particles
06.
Q: Which of these describe the specific mixing power?
A: The ratio between the propeller power and propeller size