DETERMINATION OF THE THERMAL CONDUCTIVITY OF A BATTERY COOLING LIQUID USING TRANSIENT HOT BRIDGE AND LASER FLASH TECHNIQUE - METHOD VALIDATION

Description

The thermal conductivity of cooling liquids is an important parameter to calculate the actual cooling capacity and power of cooling systems especially for batteries. There are already known measurement techniques with known drawbacks like the Transient Hot Wire (THW) method which are still applied to determine this temperature dependent material property. Further developed techniques such as the Transient Hot Bridge (THB) or the Laser Flash (LFA) method also promise an accurate measurement of the thermal conductivity of liquids. In this study, the uncertainties of the thermal conductivity determination of the THB and LFA method based on a commercial coolant are compared. The outcome of the examined fluid show that the THB method results in lower measurement uncertainties and less measurement effort compared to the LFA measurements.

Period	8 Aug 2022 → 10 Aug 2022
Event title	16th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics and Editorial Board of Applied Thermal Engineering
Event type	Other
Degree of Recognition	International