Answer / hardik

boiler efficiency= (heat transferred to feed water in
converting it to steam)/(heat released by complete
combustion of fuel)

n(eta)= Mass of steam * (h- H(water))/(mass of fuel *
calorific value fuel)

Answer / srinivas

yes this answer is correct

Answer / harsha

BOILER EFFICIENCY= (STEAM QUANTITY X (STEAM ENTHALPY-FEED WATER TEMP))/(COAL CONSUMPTION X CALORIFIC VALUE OF COAL)

Answer / vinay mishra

DIRECT METHOD
BOILER EFFICIENCY = TOTAL MASS OF STEAM GENERATED * (TOTAL
HEAT OF STEAM - SENSIBLE HEAT OF FEED WATER )/ FUEL FIRING
RATE * GCV OF FUEL

Answer / sunil thakur

boiler efficiency=heat actual used in producting steam/heat
liberated in the furnace
=m(actual evaporartion)(h(heat of steam)-hf(sensible heat
of feed water))/c(calorific value of fuel)

Answer / ub

I am a little confused about the what the symbols mean in Hardiks answer.

n(eta)= Mass of steam * (h- H(water))/(mass of fuel *
calorific value fuel)

What does eta here mean?
What is h? H?

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