The following Application Highlight features the use of the Modified Transient Plane Source method in the thermal conductivity testing of lubricants.
In modern mechanical devices, lubricants serve a dual purpose: They reduce friction between moving parts, thus reducing wear and tear on devices. They also can serve a thermal management role, by transferring heat generated due to friction and shear away from where it is being generated. Heat transfer in such a scenario may be due to thermal conduction or by thermal convection, depending on the device – though in many applications, thermal conduction is the primary mechanism. For this reason, thermal conductivity of lubricants is a key performance attribute.
Figure 1. Use of C-Therm Liquids Cell accessory for testing of liquids with the Modified Transient Plane Source method.
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