Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Design of a Gamma Densitometer for Hydrocarbon Fuel at High Temperature and Supercritical Pressure

Yang, Z.[Zhuqiang], Bi, Q.[Qincheng], Guo, Y.[Yong], Liu, Z.[Zhaohui], Yan, J.[Jianguo], Zhang, Q.[Qiang]
J. Chem. Eng. Data 2014, 59, 11, 3335-3343
ABSTRACT
The densities of endothermic hydrocarbon fuel at supercritical pressure condition are measured online using a radial measurement method. The densitometer is based on the attenuation theory of gamma ray using a count rate mode. One advantage of the method is that it is noninstrusive and practical for a small tube measurement. The densitometer was measurably optimized for the design and calibrated by the reference fluids with different density ranges. A kind of endothermic hydrocarbon fuel was measured covering the temperature from (283 to 950) K at the supercritical pressures of (3.0 and 4.0) MPa. The data were regressed with polynomial equations and the isobaric thermal expansion could be obtained by the fitted density curve.
Compounds
# Formula Name
1 H2O water
2 N2 nitrogen
3 C6H12 cyclohexane
4 C7H16 heptane
5 C8H18 octane
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • Mass density, kg/m3 ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • gamma densitometer
  • 35
  • POMD
  • 2
  • Mass density, kg/m3 ; Gas
  • Pressure, kPa; Gas
  • Temperature, K; Gas
  • Gas
  • gamma densitometer
  • 20
  • POMD
  • 3
  • Mass density, kg/m3 ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • gamma densitometer
  • 28
  • POMD
  • 5
  • 4
  • Mass density, kg/m3 ; Liquid
  • Mass fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • gamma densitometer
  • 50