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How to Estimate Coal Boiler Efficiency

Moving Grate coal-steam-boiler,-coal-hot-water-boiler

Energy saving is the most importan issue that should be taken into consideration by boiler manufacturers. Whether
the boiler is energy saving and whether boiler efficiency is high will directly
affect enterprises’ investment and benefits.

Romiter Machinery engineers put some simple methods to estimate coal fired boiler efficiency:

To check coal-fired boiler slag:


Coal-fired boiler thermal efficiency is closely related to the fuel
combustion. The much more coal cinders mean the boiler combustion is not
full and the calorific value of coal is not fully made use of. This
type of coal boiler will not save coal fuel, and cause serious
environment pollution.

Temperature near coal filling mouth:


Approach to the coal filling mouth nearby and perceive the temperature.
If the temperature is high, the losing heat is too much, for the heating
comes from the burning coal, and thus lower the boiler thermal
efficiency.

Exhaust temperature:


Quickly touch the outer wall of boiler pipe, to ensure the exhaust
temperature. If you feel it is too hot, the exhaust temperature may be
above 200 degree and the heat lose is too much. This kind of coal boiler
wastes much heat and is of low thermal efficiency.

Read More: Coal Fired Steam Boilers

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