Вопрос 1 из 8
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How do you prevent pumps from malfunctioning when transporting hot water with a temperature of well above 120C°?

Вопрос 2 из 8
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Which load profile will benefit the most from a demand driven control system?

Вопрос 3 из 8
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What is the ratio between the capital investment and running costs of a temperature control system?

Вопрос 4 из 8
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Why does a cooling system that uses propylene glycol as coolant demand pumps with oversized motors?

Вопрос 5 из 8
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Why is ammonia an efficient coolant?

Вопрос 6 из 8
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How have temperature control systems traditionally been regulated?

Вопрос 7 из 8
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What is the expected payback time of an investment in system optimisation?

Вопрос 8 из 8
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Which temperature control systems hold the greatest potential for optimisation?

Вопрос 8 из 8
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1: How do you prevent pumps from malfunctioning when transporting hot water with a temperature of well above 120C°?
Equip the pump with external cooling.
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1: How do you prevent pumps from malfunctioning when transporting hot water with a temperature of well above 120C°?
Equip the pump with double-shaft seals or air-cooled top.
1: How do you prevent pumps from malfunctioning when transporting hot water with a temperature of well above 120C°?
Isolating the pump and install heat tracing.
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2: Which load profile will benefit the most from a demand driven control system?
Low flow rate with relatively few peak periods during the day.
2: 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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2: 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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3: What is the ratio between the capital investment and running costs of a temperature control system?
20:1
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3: What is the ratio between the capital investment and running costs of a temperature control system?
1:1
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3: What is the ratio between the capital investment and running costs of a temperature control system?
1:20
4: 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.
4: 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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4: 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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5: Why is ammonia an efficient coolant?
Ammonia is able to absorb large amount of heat when it evaporates.
5: Why is ammonia an efficient coolant?
Ammonia is easy to pump.
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5: Why is ammonia an efficient coolant?
Ammonia is a natural coolant with zero ozone depletion.
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6: How have temperature control systems traditionally been regulated?
Constant speed pumps and throttling valves regulating the amount of water entering the heat exchanger.
6: How have temperature control systems traditionally been regulated?
Constant pressure valves regulating the amount of water entering the heat exchanger.
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6: How have temperature control systems traditionally been regulated?
Three way valves controlling the amount of water entering the pump.
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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: Which temperature control systems hold the greatest potential for optimisation?
Temperature controlled pump in single circulation systems.
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8: 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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8: Which temperature control systems hold the greatest potential for optimisation?
Three way valve Regulated temperature control systems that adapts operation according to the load.