Heat Duty
Heat Duty
Heat Duty
HeatCalc is a
Thermart Software
HeatCalc
program. © 2012
by Arthur E. Morris.
www.thermart.net A Natural Gas Heat of Combustion Calculator
Calculations based on combustion of 1 gram-mole of natural gas.
SI Units
pressure: atm or bar
volume: m3 Heat of C
amount: g-mol Nat Gas
Offgas
mass: g or kg Burner CO2, H2O, N2
Nat
Oxidant
energy: kJ
moles mass
CO2 produced by combustion 1.031 28.88
H2O produced by combustion 2.003 36.09
O2 required for combustion 2.033 65.04
°reax at 25 °C
kJ/g-mol
-802.33
-1323.1
-1427.8
-2043.9
-2657.0
-241.81
-282.98
-44.02
lated at 298.15 K in SI units, and
and II are from the FREED database.
burned completely to CO2 and H2O. Cells
metric combustion of 1 gram-mol of NG.
anging any blue-bordered cell value will
s. The molar DHcomb is calculated for
l I30. The Lower Heating Value (LHV) is
posting this value to cell K15. Values for
nversion factors.
in cell L15 by taking into account the heat
for other units are calculated in column L
"Heat of combustion", "Standard enthalpy of formation", Wikipedia, the Free Encyclopedia, July 2012, http://
ttp://www.crct.polymtl.ca/factweb.php. Use Reaction-Web.
ook, http://webbook.nist.gov/chemistry/
p://www.thermart.net/
Heat of Combustion vs. Temperature
WordPad Document
Please read Data: Heat of Formation, J/g-mol
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