This work deals with the thermal conductivity of liquids at pressures up to 400 MPa in the field of food- and biotechnology. Here, the modelling of thermal diffusion is carried out to enable an improved characterization of thermo-fluid dynamics in high pressure chambers.
In order to acquire unavailable in-situ data, first of all a thermal conductivity measurement system for low viscous liquids on the basis of the transient hot-wire method was conceived and experimentally realized.
The applicability of pressure adapted empirical models is discussed with obtained measuring data for aqueous sugar solutions, plant oils, and ethanol-castor oil-mixtures. Finally, the results are interpreted concerning high pressure treatment processes.
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This work deals with the thermal conductivity of liquids at pressures up to 400 MPa in the field of food- and biotechnology. Here, the modelling of thermal diffusion is carried out to enable an improved characterization of thermo-fluid dynamics in high pressure chambers.
In order to acquire unavailable in-situ data, first of all a thermal conductivity measurement system for low viscous liquids on the basis of the transient hot-wire method was conceived and experimentally realized.
The applic...
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