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10. Internationales Fluidtechnisches

8. - 10. März | 2016
in Dresden

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14:50   ics       Großer Saal

Comparison of Heat-Properties and its Implications between Standard-Oil and Bio-Oil

First author:
Marcel Rückert, RWTH Aachen University, Institute for Fluid Power Drives and Controls (IFAS), Germany

An important criteria for optimising hydraulic systems is their size. Especially for tanks and heat exchangers oil parameters as heat capacity and thermal conductivity have a big influence on the size. Additionally, various oils differ in their parameters. Accordingly, the heat capacity and thermal conductivity need to be known. However, little research has been done. Data-sheets usually do not provide any thermal data.
In this paper, the thermal conductivity is measured for varying types of hydraulic oils. The thermal conductivity is determined by a newly designed test-rig measuring the radial temperature difference in a tube at a quasi-static state using a constant heat flux. Thus, an overview over the thermal conductivity of different oils is achieved. Based on the results, a comparison between different types of fluid is made.