Intermittent Combustion and Boiler Efficiency
Boiler combustion efficiency is reduced by intermittent operation due to
- the energy loss in the flue gas - either by unburned fuel with the excess of fuel or by heating more air than necessary with the excess of air
- the radiation and convection loss from the exterior surface of the boiler
Energy loss due to radiation and convection increases with intermittent operation and reduced combustion time as indicated in the diagram below:
Related Topics
• Combustion
Combustion processes and their efficiency. Boiler house and chimney topics. Properties of fuels like oil, gas, coal and wood and more. Safety valves and tanks.
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