Why is ammonia an efficient coolant?
Which component is often ‘the weakest link’ in centrifugal pumps?
How high is the suction lift of the self-priming CM pump?
What is the most efficient and simple way of controlling heating, cooling and refrigeration systems?
How have temperature control systems traditionally been regulated?
What is the ratio between the capital investment and running costs of a temperature control system?
What is the expected payback time of an investment in system optimisation?
Which load profile will benefit the most from a demand driven control system?
Test results
Congratulations. You have passed the test and completed the 29 - Introduction to temperature control
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Q: Why is ammonia an efficient coolant?
A: Ammonia is able to absorb large amount of heat when it evaporates.
Q: Why is ammonia an efficient coolant?
A: Ammonia is easy to pump.
Q: Why is ammonia an efficient coolant?
A: Ammonia is a natural coolant with zero ozone depletion.
Q: Which component is often ‘the weakest link’ in centrifugal pumps?
A: Shaft seal
Q: Which component is often ‘the weakest link’ in centrifugal pumps?
A: O-rings
Q: Which component is often ‘the weakest link’ in centrifugal pumps?
A: Flange
Q: How high is the suction lift of the self-priming CM pump?
A: Up to 5 metres
Q: How high is the suction lift of the self-priming CM pump?
A: Up to 8 metres
Q: How high is the suction lift of the self-priming CM pump?
A: Up to 10 metres
Q: What is the most efficient and simple way of controlling heating, cooling and refrigeration systems?
A: Intelligent three way valves controlling the amount of water to the pump and heat exchanger accordingly.
Q: What is the most efficient and simple way of controlling heating, cooling and refrigeration systems?
A: 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.
Q: What is the most efficient and simple way of controlling heating, cooling and refrigeration systems?
A: Thermos element three way valves controlling the amount of water to the heat exchangers.
Q: How have temperature control systems traditionally been regulated?
A: Constant speed pumps and throttling valves regulating the amount of water entering the heat exchanger.
Q: How have temperature control systems traditionally been regulated?
A: Constant pressure valves regulating the amount of water entering the heat exchanger.
Q: How have temperature control systems traditionally been regulated?
A: Three way valves controlling the amount of water entering the pump.
Q: What is the ratio between the capital investment and running costs of a temperature control system?
A: 20:1
Q: What is the ratio between the capital investment and running costs of a temperature control system?
A: 1:1
Q: What is the ratio between the capital investment and running costs of a temperature control system?
A: 1:20
Q: What is the expected payback time of an investment in system optimisation?
A: 1-12 months
Q: What is the expected payback time of an investment in system optimisation?
A: 1-5 years
Q: What is the expected payback time of an investment in system optimisation?
A: System optimization is rarely economical valuable but should be done due to environmental concerns
Q: Which load profile will benefit the most from a demand driven control system?
A: Low flow rate with relatively few peak periods during the day.
Q: Which load profile will benefit the most from a demand driven control system?
A: High flow rate with relatively few low flow periods during the day.
Q: Which load profile will benefit the most from a demand driven control system?
A: Varying flow rate with relatively often periods with full flow and no flow.