# How to Calculate Heat loss due to evaporation of water formed due to H2 in fuel?

Calculation of percentage heat loss due to evaportation of water formed due to H2 in fuel.

## Amount of Heat Loss Calculation due to Evaporation

The percentage loss of heat loss due to evaporation due to evaporation of water formed due to H2 fuel is defined as the loss caused due to the combustion of hydrogen with water. The water on combustion is converter into steam and evaporates. Below given the formula to calculate the % loss of heat loss due to evaporation. Formula:
L2 = ({9 x H2 x [584 + Cp (Tf - Ta)]} / GCV of Fuel ) x 100
Where,
H2 = Hydrogen present in fuel on 1kg basis
Cp = Specific heat of superheated steam in kCal/kgoC
Tf = Fuel gas temperature in oC
Ta = Ambient temperature in oC Let us consider an example, on how to calculate heat loss due to evaporation of water formed due to H2 in fuel.
Step 1:Given that,
Hydrogen present in fuel on 1kg basis = 0.15
Specific heat of superheated steam = 0.40 kCal/kgoC
Fuel gas temperature = 200oC
Ambient temperature = 30 oC
GCV of fuel = 13000 Step 2:Applying the values in the formula,
L2 = ({9 x 0.15 x [584 + Cp (Tf - Ta)]} / GCV of Fuel ) x 100
L2 = ({9 x 0.15 x [584 + 0.40 (200 - 30)]} / 13000 ) x 100
L2 = 6.77% Result: % Heat Loss Due to Evaporation = 6.77%