Kysymys 1 näistä 8
Edistyneille
Which load profile will benefit the most from a demand driven control system?
Kysymys 2 näistä 8
Edistyneille
Which component is often ‘the weakest link’ in centrifugal pumps?
Kysymys 3 näistä 8
Edistyneille
How high is the suction lift of the self-priming CM pump?
Kysymys 4 näistä 8
Edistyneille
Which temperature control systems hold the greatest potential for optimisation?
Kysymys 5 näistä 8
Edistyneille
Why does a cooling system that uses propylene glycol as coolant demand pumps with oversized motors?
Kysymys 6 näistä 8
Edistyneille
What is the most efficient and simple way of controlling heating, cooling and refrigeration systems?
Kysymys 7 näistä 8
Edistyneille
What is the expected payback time of an investment in system optimisation?
Kysymys 8 näistä 8
Edistyneille
What is the ratio between the capital investment and running costs of a temperature control system?
Kysymys 8 näistä 8
Edistyneille
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Onneksi olkoon. Olet läpäissyt testin ja suorittanut 29 - Introduction to temperature control
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1: Which load profile will benefit the most from a demand driven control system?
Low flow rate with relatively few peak periods during the day.
1: 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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1: 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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2: Which component is often ‘the weakest link’ in centrifugal pumps?
Shaft seal
2: Which component is often ‘the weakest link’ in centrifugal pumps?
O-rings
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2: Which component is often ‘the weakest link’ in centrifugal pumps?
Flange
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3: How high is the suction lift of the self-priming CM pump?
Up to 5 metres
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3: How high is the suction lift of the self-priming CM pump?
Up to 8 metres
3: How high is the suction lift of the self-priming CM pump?
Up to 10 metres
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4: Which temperature control systems hold the greatest potential for optimisation?
Temperature controlled pump in single circulation systems.
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4: 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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4: Which temperature control systems hold the greatest potential for optimisation?
Three way valve Regulated temperature control systems that adapts operation according to the load.
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: What is the most efficient and simple way of controlling heating, cooling and refrigeration systems?
Intelligent three way valves controlling the amount of water to the pump and heat exchanger accordingly.
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6: What is the most efficient and simple way of controlling heating, cooling and refrigeration systems?
Intelligent pumps equipped with temperature sensors that measure the outlet temperature and signal the pump to regulate its flow accordingly – without the use of valves.
6: What is the most efficient and simple way of controlling heating, cooling and refrigeration systems?
Thermos element three way valves controlling the amount of water to the heat exchangers.
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7: What is the expected payback time of an investment in system optimisation?
1-12 months
7: What is the expected payback time of an investment in system optimisation?
1-5 years
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7: What is the expected payback time of an investment in system optimisation?
System optimization is rarely economical valuable but should be done due to environmental concerns
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8: What is the ratio between the capital investment and running costs of a temperature control system?
8: What is the ratio between the capital investment and running costs of a temperature control system?
8: What is the ratio between the capital investment and running costs of a temperature control system?
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