2 replies to this topic

[Akshay Jeebodhun]

 Hello all,
i have a query about calculating the energy of fuel input to the burner.

 

Energy input by fuel to burner  = GCV of fuel* mass flow rate of fuel  + mass of fuel* cp of fuel* (110-27)

OR

Energy input by fuel to burner  = GCV of fuel* mass flow rate of fuel  + mass of fuel* cp of fuel* (110)

i have taken 110 degC  because from definition of calorific value : quantity of heat produced by its combustion - at constant pressure and under "normal" ("standard") conditions (i.e. to 0^oC and under a pressure of 1,013 mbar).



Thnks

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Edited by Akshay Jeebodhun, 26 March 2014 - 03:22 AM.

[PingPong]

Your drawing is not readable.

 

Heat of combustion values are usually defined at 15 or 25 ^oC, not at 0 ^oC (at least, I have never seen that).

 

GCV (or HHV) are heating values based on condensation of water vapor from the fluegas, which in the industry is usually not done.

 

So you should use NCV (or LHV) instead to get a realistic value of the heat released.

[sheiko]

Hi Akshay,
The fuel is going in a preheater or in burners?