6 questions Basic

ECADEMY test

27 - Boiler systems

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Correct
Q: What is the purpose of an economiser?
A: To harness the energy of the boiler’s flue gas and reuse it in other parts of the system
Correct
Q: What is the purpose of the condenser?
A: To ensure that no pockets of steam remain in the condensate when returning to the Boiler house.
Correct
Q: What is direct boiler feed?
A: Variable speed pumps equipped with level sensors to control the water level
Correct
Q: What is the main shortcoming of on/off level control?
A: It does not maintain a constant level in the boiler
Correct
Q: How does an economiser work?
A: In an economiser flue gas is led past a network of pipes with cold water, transferring heat from the flue gas to the water.
Correct
Q: Why are feed valves problematic?
A: Valves cause pressure loss, which increases energy consumption and requires larger pumps