In the design of transient thermal experiments for estimating the thermal conductivity, k, and volumetric heat capacity, C, the scaled sensitivity coefficients are utilized. These coefficients should be large and uncorrelated. They are largest when the heated surface temperature is held at the maximum value. By using complementary experiments, the sensitivity coefficients can be made more uncorrelated than if a single experiment is used. The result of the two combined experiments is that the two parameters are found with the greatest accuracy. They are also of equal accuracy, which is generally not the case. Actually this problem is unique not only because of intrinsic solutions between the small and large time solutions but in the exchanging of the roles in the scaled sensitivity coefficients for k and C. In fact, the k-scaled sensitivity coefficient function of the X11B10T0 problem is equal to the Cscaled sensitivity function for the X12B10T0 case.
|Titolo:||Optimum design of complementary transient experiments for estimating thermal properties|
|Autori interni:||DE MONTE, FILIPPO|
|Data di pubblicazione:||2017|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|