Thermal conductivity of five normal alkanes in the temperature range 283-373 K at pressures up to 250 MPa

Journal Article · Sun May 01 00:00:00 EDT 1988 · Int. J. Thermophys.; (United States)

DOI:https://doi.org/10.1007/BF00513075· OSTI ID:6289908

Tanaka, Y; Itani, Y; Kubota, H; Makita, T

Experimental data on the thermal conductivity of five liquid n-alkanes - hexane, heptane, octane, decane, and dodecane - are presented in the temperature range from 283 to 373 K at pressures up to 250 MPa or the freezing pressures. The measurements were performed on an absolute basis by an automated transient hot-wire apparatus. The uncertainty of the reported data is estimated to be within +/- 1%. The thermal conductivity of each alkane decreases almost linearly with rising temperature at a constant pressure and increases with increasing pressure at a constant temperature. Both the temperature coefficient of the thermal conductivity absolute value of (partial derivative ..gamma../partial derivative T)/sub P/ and the pressure coefficient (partial derivative ..gamma../partial derivative P)/sub T/ decrease with increasing carbon number of alkanes. The experimental results were correlated with temperature and pressure by a similar expression to the Tait equation. It is also found that both the dense hard-sphere model presented by Menashe et al. and the modified significant structure theory proposed by Prabhuram and Saksena provide good representations of the present experimental results.

• Research Organization: Asahi Chemical Industry Co., Ltd., Kurashiki City (Japan)
• OSTI ID: 6289908
• Journal Information: Int. J. Thermophys.; (United States), Vol. 9:3
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALKANES
THERMAL CONDUCTIVITY
CORRELATIONS
DATA ACQUISITION SYSTEMS
DECANE
DODECANE
EQUATIONS
GASES
HARD-SPHERE MODEL
HEPTANE
HEXANE
HOT-WIRE GAGES
LOW TEMPERATURE
MEDIUM TEMPERATURE
OCTANE
PRESSURE DEPENDENCE
PRESSURE MEASUREMENT
TEMPERATURE DEPENDENCE
TEMPERATURE MEASUREMENT
VERY HIGH PRESSURE
FLUIDS
HYDROCARBONS
MEASURING INSTRUMENTS
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
PRESSURE GAGES
THERMODYNAMIC PROPERTIES
400201* - Chemical & Physicochemical Properties