How much of the 30 % of water lost to evaporation can you potentially save by using the right control?
Why are single-stage Grundfos NB/NK pumps usually used in cooling towers?
What does the hysteresis band do?
How does Grundfos iSOLUTIONS help the pump control the cooling tower?
What is the main purpose of a cooling tower?
Test results
Congratulations. You have passed the test and completed the 35 - The role of pumps in cooling towers
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Q: How much of the 30 % of water lost to evaporation can you potentially save by using the right control?
A: None
Q: How much of the 30 % of water lost to evaporation can you potentially save by using the right control?
A: 5%
Q: How much of the 30 % of water lost to evaporation can you potentially save by using the right control?
A: 20%
Q: Why are single-stage Grundfos NB/NK pumps usually used in cooling towers?
A: To meet requirements for high flow and low pressure
Q: Why are single-stage Grundfos NB/NK pumps usually used in cooling towers?
A: To meet requirements for low flow and high pressure
Q: What does the hysteresis band do?
A: It ensures that the fan starts when you exceed a set temperature
Q: What does the hysteresis band do?
A: It determines how low the temperature can be before the fan stops running
Q: What does the hysteresis band do?
A: Nothing – it’s a made-up phrase
Q: How does Grundfos iSOLUTIONS help the pump control the cooling tower?
A: By keeping the pumps running at constant speed
Q: How does Grundfos iSOLUTIONS help the pump control the cooling tower?
A: Through variable speed and start/stop functions
Q: How does Grundfos iSOLUTIONS help the pump control the cooling tower?
A: By using powerful fans
Q: Does fixed-speed operation give you a greater control of energy use?
A: Yes
Q: Does fixed-speed operation give you a greater control of energy use?
A: No
Q: What is the main purpose of a cooling tower?
A: To transfer heat from the cooling water to the air by evaporation
Q: What is the main purpose of a cooling tower?
A: To boost pressure in the distribution area
Q: What is the main purpose of a cooling tower?
A: To keep a volume of water for emergency use