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Question 1 of 6
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How did the Stargard project redesign the layout of mixers in the tank?
Question 2 of 6
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Where do vortices develop if the propeller is too close to the water surface?
Question 3 of 6
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What is the aim of thrust-to-power sizing?
Question 4 of 6
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What are deadzones?
Question 5 of 6
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How much was the average velocity of the volume improved by?
Question 6 of 6
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Which of these isn’t a main target for wastewater mixers?
Question 6 of 6
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1: How did the Stargard project redesign the layout of mixers in the tank?
They gathered four mixers in the middle of the tank
1: How did the Stargard project redesign the layout of mixers in the tank?
They spread four mixers across the tank
1: How did the Stargard project redesign the layout of mixers in the tank?
They remained in the same position, but were replaced with more powerful mixers
2: Where do vortices develop if the propeller is too close to the water surface?
At the front of the propeller
You can find the answer here >
2: Where do vortices develop if the propeller is too close to the water surface?
At the rear of the propeller
2: Where do vortices develop if the propeller is too close to the water surface?
Underneath the propeller
You can find the answer here >
3: What is the aim of thrust-to-power sizing?
Maintain a steady momentum and a constant required thrust rate
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3: What is the aim of thrust-to-power sizing?
Deliver a sufficient thrust with the least possible energy consumption
3: What is the aim of thrust-to-power sizing?
Run the power at the limit to deliver maximum thrust when necessary
You can find the answer here >
4: What are deadzones?
Areas that are compromised during the mixing process
4: What are deadzones?
Areas consisting of infected water
4: What are deadzones?
Areas in which the homogeneity is high
5: How much was the average velocity of the volume improved by?
20%
5: How much was the average velocity of the volume improved by?
25%
5: How much was the average velocity of the volume improved by?
30%
6: Which of these isn’t a main target for wastewater mixers?
To blend liquid with solid particles
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6: Which of these isn’t a main target for wastewater mixers?
To ensure quick drainage from the tank
6: Which of these isn’t a main target for wastewater mixers?
To keep solid particles in suspension
You can find the answer here >