Вопрос 1 из 8
Повышенной сложности

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

Вопрос 2 из 8
Повышенной сложности

Why is ammonia an efficient coolant?

Вопрос 3 из 8
Повышенной сложности

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

Вопрос 4 из 8
Повышенной сложности

Which load profile will benefit the most from a demand driven control system?

Вопрос 5 из 8
Повышенной сложности

What is the most efficient and simple way of controlling heating, cooling and refrigeration systems?

Вопрос 6 из 8
Повышенной сложности

How have temperature control systems traditionally been regulated?

Вопрос 7 из 8
Повышенной сложности

What is the expected payback time of an investment in system optimisation?

Вопрос 8 из 8
Повышенной сложности

Which temperature control systems hold the greatest potential for optimisation?

Вопрос 8 из 8
Повышенной сложности

Вы довольны своими ответами?

Отправьте текущие ответы и получите окончательный результат теста.

Результаты теста

Поздравляем! Вы прошли тест и завершили 29 - Вводная информация о регулировании температуры
К сожалению, вы не прошли тест 29 - Вводная информация о регулировании температуры в этот раз
Достижения:
Как бы вы оценили этот курс?
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.
Ответ можно найти здесь >
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.
Ответ можно найти здесь >
2: Why is ammonia an efficient coolant?
Ammonia is able to absorb large amount of heat when it evaporates.
2: Why is ammonia an efficient coolant?
Ammonia is easy to pump.
Ответ можно найти здесь >
2: Why is ammonia an efficient coolant?
Ammonia is a natural coolant with zero ozone depletion.
Ответ можно найти здесь >
3: 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.
3: 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.
Ответ можно найти здесь >
3: 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.
Ответ можно найти здесь >
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.
Ответ можно найти здесь >
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.
Ответ можно найти здесь >
5: 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.
Ответ можно найти здесь >
5: 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.
5: 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.
Ответ можно найти здесь >
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.
Ответ можно найти здесь >
6: How have temperature control systems traditionally been regulated?
Three way valves controlling the amount of water entering the pump.
Ответ можно найти здесь >
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
Ответ можно найти здесь >
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
Ответ можно найти здесь >
8: Which temperature control systems hold the greatest potential for optimisation?
Temperature controlled pump in single circulation systems.
Ответ можно найти здесь >
8: Which temperature control systems hold the greatest potential for optimisation?
Unregulated temperature control systems that do not adapt operation according to the load.
Ответ можно найти здесь >
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.