Steam Boiler Efficiency

Carry out an 'energy balance' on the boiler.

• Add up all the energy streams entering the boiler in one column.
• Add up all the energy streams leaving the boiler in a second column [for the steam conditions, consult Steam Tables].
• Make sure the two column totals are the same.
• From the list, select the energy leaving in the steam; divide by the energy entering in the fuel; multiply by 100%.
• "Robert is your mother's brother".

If it's any more than 45%, then double-check the calculation.

thank you PWSlack .

may i need more details like , energy entering boiler is only fuel, say diesel with a rate

m^. kg/hr and calorific value C_v k.cal/Kg.

so entering energy = m^._* C_v in K.cal /hr ........... Am i right?

what about burner efficiency ?

how can i calculate losses in flue gases and losses due to in complete fuel combustion also any other losses which may be hidden for me .

is there a web site can gave full detail for that subject

thank you again

Haroun