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Question 1 of 8
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Which temperature control systems hold the greatest potential for optimisation?
Question 2 of 8
Advanced
What is the ratio between the capital investment and running costs of a temperature control system?
Question 3 of 8
Advanced
Why is ammonia an efficient coolant?
Question 4 of 8
Advanced
Which load profile will benefit the most from a demand driven control system?
Question 5 of 8
Advanced
Why does a cooling system that uses propylene glycol as coolant demand pumps with oversized motors?
Question 6 of 8
Advanced
How high is the suction lift of the self-priming CM pump?
Question 7 of 8
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Which component is often ‘the weakest link’ in centrifugal pumps?
Question 8 of 8
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How have temperature control systems traditionally been regulated?
Question 8 of 8
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1: Which temperature control systems hold the greatest potential for optimisation?
Temperature controlled pump in single circulation systems.
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1: Which temperature control systems hold the greatest potential for optimisation?
Unregulated temperature control systems that do not adapt operation according to the load.
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1: Which temperature control systems hold the greatest potential for optimisation?
Three way valve Regulated temperature control systems that adapts operation according to the load.
2: What is the ratio between the capital investment and running costs of a temperature control system?
2: What is the ratio between the capital investment and running costs of a temperature control system?
2: What is the ratio between the capital investment and running costs of a temperature control system?
1:20
3: Why is ammonia an efficient coolant?
Ammonia is able to absorb large amount of heat when it evaporates.
3: Why is ammonia an efficient coolant?
Ammonia is easy to pump.
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3: Why is ammonia an efficient coolant?
Ammonia is a natural coolant with zero ozone depletion.
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4: Which load profile will benefit the most from a demand driven control system?
Low flow rate with relatively few peak periods during the day.
4: Which load profile will benefit the most from a demand driven control system?
High flow rate with relatively few low flow periods during the day.
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4: Which load profile will benefit the most from a demand driven control system?
Varying flow rate with relatively often periods with full flow and no flow.
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5: Why does a cooling system that uses propylene glycol as coolant demand pumps with oversized motors?
The viscosity and density of propylene glycol is higher than tap water.
5: Why does a cooling system that uses propylene glycol as coolant demand pumps with oversized motors?
The viscosity and density of propylene glycol is lower than tap water.
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5: Why does a cooling system that uses propylene glycol as coolant demand pumps with oversized motors?
Propylene glycol has a lower specific heat capacity and therefor requires a higher flow.
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6: How high is the suction lift of the self-priming CM pump?
Up to 5 metres
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6: How high is the suction lift of the self-priming CM pump?
Up to 8 metres
6: How high is the suction lift of the self-priming CM pump?
Up to 10 metres
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7: Which component is often ‘the weakest link’ in centrifugal pumps?
Shaft seal
7: Which component is often ‘the weakest link’ in centrifugal pumps?
O-rings
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7: Which component is often ‘the weakest link’ in centrifugal pumps?
8: How have temperature control systems traditionally been regulated?
Constant speed pumps and throttling valves regulating the amount of water entering the heat exchanger.
8: How have temperature control systems traditionally been regulated?
Constant pressure valves regulating the amount of water entering the heat exchanger.
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8: How have temperature control systems traditionally been regulated?
Three way valves controlling the amount of water entering the pump.
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