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Phase Behavior and ThermodynamicsPVT Properties

Latent Heat of Hydrocarbon Mixture Formula

Δhm=TM(7.58+4.57log10T)\Delta h_m=\frac{T}{M}\left(7.58+4.57\log_{10}T\right)

Latent Heat of Hydrocarbon Mixture calculates latent heat of hydrocarbon mixture for pvt properties workflows in phase behavior and thermodynamics.

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How engineers use this formula

Use this formula when the listed inputs (T, M) are known and the assumptions behind the cited pvt properties relationship match the engineering case being checked.

Assumptions

  • Input values are representative for the well, reservoir, fluid, or equipment case being evaluated.
  • The declared units match the field-unit constants used in the formula.
  • The cited formula applies to the selected petroleum engineering workflow.

Limitations

  • The calculation does not replace a full engineering model or operating procedure.
  • Accuracy depends on the source correlation, assumptions, input quality, and unit consistency.

Common mistakes

  • Mixing unit systems without converting the inputs.
  • Using default example values as field recommendations.
  • Applying the formula outside the source assumptions.

Default example

Using the default inputs, Delta_h_m equals 99.571465 BTU/lb.

TK

500

Mdimensionless

100

Inputs

T

K

Average Boiling Point

M

dimensionless

Molecular Weight

Outputs

Delta_h_m

BTU/lb

Latent Heat of Hydrocarbon Mixture

M

dimensionless

Molecular Weight

Source and review

reviewed

Gas Conditioning and Processing, Campbell, J. M. (1992)

John M. Campbell. 1992. Gas Conditioning and Processing, Campbell Petroleum Series, Vol. 1, Page 207.

source conflict
Source

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