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Lower Heating Value of a non-ideal liquid mixture

Lower Heating Value of a non-ideal liquid mixture

Lower Heating Value of a non-ideal liquid mixture

(OP)
Hi,

I'm looking for a correlation or a formula to calculate the Lower Heating Value (LHV) of a liquid mixture. Any idea?

Thanks

"We don't believe things because they are true, things are true because we believe them."

RE: Lower Heating Value of a non-ideal liquid mixture

(OP)
The liquid is Fuel Oil.

"We don't believe things because they are true, things are true because we believe them."

RE: Lower Heating Value of a non-ideal liquid mixture

You can use values for each individual component and sum then on either a volume, mass or molar basis (depending on your table values).

Best regards

Morten

RE: Lower Heating Value of a non-ideal liquid mixture

A general formula for a pure hydrocarbon would be:

LHV = 8080 c + 28600 h......kcal/kg

where c and h are mass fractions of carbon and hydrogen, respectively.

A fuel of venezuelan origin (Oficina) some 60 years ago had the following values:

     oAPI        Mol. weight       c       h         s         LHV

    10.9              ~380      0.855 0.116  0.018      9665
      9.6              ~390      0.858 0.114  0.018      9630
      8.0              ~415      0.861 0.110  0.019      9590

s is for sulfur.

These LHV may serve you as indicative values.

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