Brillouin scattering study of equation of state of multicomponent liquids: Model oil samples
Brillouin scattering technique has been used to measure the pressure dependence of sound velocity v/sub s/(P) in model oil samples (each containing 5-hydrocarbon liquids) at room temperature T = 20/sub 1/ /sup 0/C. Experimental results are reported on two blends of model oil, each containing a mixture of n-heptane, n-tetradecane, cyclo-hexane, benzene, and toluene in different volume fractions. The compositions of these two differed in their cyclohexane and toluene contents. The pressure dependence of v/sub s/(P) has been measured up to 815 bars and the results could be least-square fitted to v/sub s/(P) = A/sub 0/+A/sub 1/P+A/sub 2/P/sup 2/ within the limits of experimental error ( +- 1%). The modified Tait's equation and linear pressure dependence of bulk modulii have been used in consistence with an earlier work to interpret the parabolic pressure dependence of v/sub s/(P). This yields the values of Tait parameters (B and C) and hence allows the explicit pressure dependence of density and compressibility of these multicomponent liquids to be evaluated.
- Research Organization:
- Department of Physics, P.B. 1048, University of Oslo, Blindern, 0316 Oslo-3, Norway
- OSTI ID:
- 6910565
- Journal Information:
- J. Appl. Phys.; (United States), Vol. 64:7
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
BENZENE
BRILLOUIN EFFECT
EQUATIONS OF STATE
CYCLOHEXANE
DECANE
HEPTANE
TOLUENE
COMPRESSION
DENSITY
EXPERIMENTAL DATA
LIQUIDS
MEDIUM TEMPERATURE
OILS
PRESSURE EFFECTS
ALKANES
ALKYLATED AROMATICS
AROMATICS
COHERENT SCATTERING
CYCLOALKANES
DATA
EQUATIONS
FLUIDS
HYDROCARBONS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
360603* - Materials- Properties
024000 - Petroleum- Storage- (-1989)