Question
Which two types of energy-saving equipment can utilise heat from the flue gas to minimise heat losses? Select more than one: a. Flue gas dampers
Which two types of energy-saving equipment can utilise heat from the flue gas to minimise heat losses?
Select more than one:
a.
Flue gas dampers
b.
Economisers
c.
Variable speed fan drives
d.
Waste heat boilers
Question 7
A boiler with uninsulated steam pipework can directly impact the HVAC system in the same room.
Select one:
True
False
Question 8
The engineer at a small factory would like to make improvements to the boiler that currently uses fuel worth R3 million each year. The boiler efficiency is currently 77%. Which of the following options will result in the shortest payback period?
Select one:
a.
Making boiler control adjustments costing R40,000, reducing fuel costs by R90,000
b.
Making changes to the system costing R40,000, reducing annual fuel costs by 1.5%
c.
Boiler recalibration costing R25,000, improving efficiency by 3%
d.
Purchasing a new boiler (same model as previous) for R2 million
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