Calorimetric Measurements and Solid-Fluid Phase Equilibria of High Pressure Hydrocarbon Mixtures

Jordan Oakley

    Research output: ThesisDoctoral Thesis

    25 Downloads (Pure)

    Abstract

    Thermophysical property data for hydrocarbon mixtures emulating natural gas is essential in the design and operation of LNG plant equipment. A differential scanning calorimeter was utilised to measure the melting temperatures and isobaric heat capacities of hydrocarbon mixtures at pressures up to 35 MPa and temperatures down to 150 K. The results were benchmarked against the current state-of-the-art models revealing their limited accuracy in predicting these properties and a need to improve model performance. Improvements in predicting melting temperatures were achieved through model regression to the data, with the most notable deviation reduction being from (39.2 to 0.9) K.
    Original languageEnglish
    QualificationDoctor of Philosophy
    Awarding Institution
    • The University of Western Australia
    Thesis sponsors
    Award date11 May 2019
    DOIs
    Publication statusUnpublished - 2019

    Fingerprint

    Phase equilibria
    Hydrocarbons
    Fluids
    Melting point
    Liquefied natural gas
    Calorimeters
    Specific heat
    Natural gas
    Thermodynamic properties
    Scanning
    Temperature

    Cite this

    @phdthesis{78634e251da0469a9cdd8817e78a3fbe,
    title = "Calorimetric Measurements and Solid-Fluid Phase Equilibria of High Pressure Hydrocarbon Mixtures",
    abstract = "Thermophysical property data for hydrocarbon mixtures emulating natural gas is essential in the design and operation of LNG plant equipment. A differential scanning calorimeter was utilised to measure the melting temperatures and isobaric heat capacities of hydrocarbon mixtures at pressures up to 35 MPa and temperatures down to 150 K. The results were benchmarked against the current state-of-the-art models revealing their limited accuracy in predicting these properties and a need to improve model performance. Improvements in predicting melting temperatures were achieved through model regression to the data, with the most notable deviation reduction being from (39.2 to 0.9) K.",
    keywords = "Differential Scanning Calorimetry, Hydrocarbons, Solid-Fluid Equilibrium, Cryogenic, Isobaric Heat Capacity, high pressure, Natural gas, EQUATION-OF-STATE",
    author = "Jordan Oakley",
    year = "2019",
    doi = "10.26182/5d02e5edc40e2",
    language = "English",
    school = "The University of Western Australia",

    }

    Calorimetric Measurements and Solid-Fluid Phase Equilibria of High Pressure Hydrocarbon Mixtures. / Oakley, Jordan.

    2019.

    Research output: ThesisDoctoral Thesis

    TY - THES

    T1 - Calorimetric Measurements and Solid-Fluid Phase Equilibria of High Pressure Hydrocarbon Mixtures

    AU - Oakley, Jordan

    PY - 2019

    Y1 - 2019

    N2 - Thermophysical property data for hydrocarbon mixtures emulating natural gas is essential in the design and operation of LNG plant equipment. A differential scanning calorimeter was utilised to measure the melting temperatures and isobaric heat capacities of hydrocarbon mixtures at pressures up to 35 MPa and temperatures down to 150 K. The results were benchmarked against the current state-of-the-art models revealing their limited accuracy in predicting these properties and a need to improve model performance. Improvements in predicting melting temperatures were achieved through model regression to the data, with the most notable deviation reduction being from (39.2 to 0.9) K.

    AB - Thermophysical property data for hydrocarbon mixtures emulating natural gas is essential in the design and operation of LNG plant equipment. A differential scanning calorimeter was utilised to measure the melting temperatures and isobaric heat capacities of hydrocarbon mixtures at pressures up to 35 MPa and temperatures down to 150 K. The results were benchmarked against the current state-of-the-art models revealing their limited accuracy in predicting these properties and a need to improve model performance. Improvements in predicting melting temperatures were achieved through model regression to the data, with the most notable deviation reduction being from (39.2 to 0.9) K.

    KW - Differential Scanning Calorimetry

    KW - Hydrocarbons

    KW - Solid-Fluid Equilibrium

    KW - Cryogenic

    KW - Isobaric Heat Capacity

    KW - high pressure

    KW - Natural gas

    KW - EQUATION-OF-STATE

    U2 - 10.26182/5d02e5edc40e2

    DO - 10.26182/5d02e5edc40e2

    M3 - Doctoral Thesis

    ER -