Path: ACPro/Airbreathing
% Heating values.
The higher heating value (HHV) is determined by bringing all the
products of combustion back to the original pre-combustion temperature and
and condensing any vapor produced. The lower heating value (LHV) is
determined by subtracting the heat of vaporization of the water from
the higher heating value.
Type HeatingValue for a demo.
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Form:
[hhV,lhV] = HeatingValue( name )
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Inputs
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name (1,:) 'hydrogen', 'methane', 'kerosene'
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Outputs
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hHV (1,1) Higher heating value (J/kg)
lHV (1,1) Higher heating value (J/kg)
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Reference: Kerrebrock, J.L, "Aircraft Engines and Gas Turbines", MIT
Press, 1992, pp. 36-39
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