Thermal Conductivity Measuring System LM Pour Point - PowerPoint PPT Presentation

Thermal Conductivity Measuring System LM Pour Point ∙ Asphaltene ∙ Wax ∙ Scale ∙ Gas Hydrate ∙ Viscosity ∙ Drag Reduction ∙ Thermal Conductivity Thermal Conductivity Measuring System Lambda www.psl-systemtechnik.de

Determination of Thermal Conductivity with the Measuring System Lambda Pour Point ∙ Asphaltene ∙ Wax ∙ Scale ∙ Gas Hydrate ∙ Viscosity ∙ Drag Reduction ∙ Thermal Conductivity Thermal Conductivity Measuring System Lambda www.psl-systemtechnik.de

Characteristics ● Measuring thermal conductivity of fluids, powders nano fluids and gels ● Based on ASTM D 2717 ● Temperature range -30 to +190 °C (-22 to +374 °F) ● Ambient pressure or pressurised up to 35 bar (507.6 psi) ● Small sample volumes from 50 ml ● Stand-alone or PC-controlled Pour Point ∙ Asphaltene ∙ Wax ∙ Scale ∙ Gas Hydrate ∙ Viscosity ∙ Drag Reduction ∙ Thermal Conductivity Thermal Conductivity Measuring System Lambda www.psl-systemtechnik.de

Measurement Principle ● Hot wire is heated up by a well known amount of electrical energy ● Heat is corried off by inter- molecular heat transfer resistance ● The wire resitance changes while cooling down ● The thermal conductivity can be calculated out of the resistance curve time Pour Point ∙ Asphaltene ∙ Wax ∙ Scale ∙ Gas Hydrate ∙ Viscosity ∙ Drag Reduction ∙ Thermal Conductivity Thermal Conductivity Measuring System Lambda www.psl-systemtechnik.de

Why use a zero con- vection thermostat? ● Convection causes additonal heat transfer and would disturb the measurement ● For measuring only the inter- molecular heat transfer any convection has to be avoided ! ● The LT30190 thermoelectric thermostat provides most accurate and fast zero- convetion tempering Pour Point ∙ Asphaltene ∙ Wax ∙ Scale ∙ Gas Hydrate ∙ Viscosity ∙ Drag Reduction ∙ Thermal Conductivity Thermal Conductivity Measuring System Lambda www.psl-systemtechnik.de

Components: LabTemp 30190 Heating / cooling device with thermoelectrical modules High accuracy and very homogeneous temperature gradient Pour Point ∙ Asphaltene ∙ Wax ∙ Scale ∙ Gas Hydrate ∙ Viscosity ∙ Drag Reduction ∙ Thermal Conductivity Thermal Conductivity Measuring System Lambda www.psl-systemtechnik.de

New: Low Temperature with Cooling-Water Precooler • Temperature range of device extended down to -50 °C (-58 °F) • Cost-effective alternative to cryostats with the same capacity • Older LTs upgradeable Pour Point ∙ Asphaltene ∙ Wax ∙ Scale ∙ Gas Hydrate ∙ Viscosity ∙ Drag Reduction ∙ Thermal Conductivity Thermal Conductivity Measuring System Lambda www.psl-systemtechnik.de

Components: Autoclave and Sensor • Autoclave (35 bar, 507.6 psi) • Inlet / outlet gas flushing • Hot-wire, platinum Pour Point ∙ Asphaltene ∙ Wax ∙ Scale ∙ Gas Hydrate ∙ Viscosity ∙ Drag Reduction ∙ Thermal Conductivity Thermal Conductivity Measuring System Lambda www.psl-systemtechnik.de

Measurement Example: Reference Oil Reference substance Measurement: Lambda between -20 and +180 °C (-4 to 356 °F) Pour Point ∙ Asphaltene ∙ Wax ∙ Scale ∙ Gas Hydrate ∙ Viscosity ∙ Drag Reduction ∙ Thermal Conductivity Thermal Conductivity Measuring System Lambda www.psl-systemtechnik.de

Measurement Example: Toluene Toluene at ambient pressure Measurement: Lambda between -20 and +60 °C (-4 to 140 °F) Pour Point ∙ Asphaltene ∙ Wax ∙ Scale ∙ Gas Hydrate ∙ Viscosity ∙ Drag Reduction ∙ Thermal Conductivity Thermal Conductivity Measuring System Lambda www.psl-systemtechnik.de

Applications • Measuring thermal conductivity of fluids, powders, nano fluids and gels • Optimisation of fluid development • Optimisation of fluid application • Quality control Pour Point ∙ Asphaltene ∙ Wax ∙ Scale ∙ Gas Hydrate ∙ Viscosity ∙ Drag Reduction ∙ Thermal Conductivity Thermal Conductivity Measuring System Lambda www.psl-systemtechnik.de

Thank you for your attention! If you want to know more www: Product page Measuring System Lambda email: info@psl-systemtechnik.de telephone: +49 5323 962790 We will be pleased to help you. Pour Point ∙ Asphaltene ∙ Wax ∙ Scale ∙ Gas Hydrate ∙ Viscosity ∙ Drag Reduction ∙ Thermal Conductivity Thermal Conductivity Measuring System Lambda www.psl-systemtechnik.de