Des Weiteren wurde zur Beurteilung

Des Weiteren wurde zur Beurteilung der Messergebnisse die kombinierte Messunsicherheit der effektiven Wärmeleitfähigkeit in den Normaldruck- und Unterdruckversuchen bestimmt. Die Messunsicherheit im Normaldruckbereich liegt bei etwa 4 bis 10 %. Im Unterdruckbereich konnte die effektive Wärmeleitfähigkeit mit einer Messunsicherheit von etwa 10 % bei 60 °C und 4 % bei 205 °C bestimmt werden. Es konnte eine direkte Abhängigkeit zwischen der kombinierten Messunsicherheit der effektiven Wärmeleitfähigkeit und der mittleren Probenkörpertemperatur sowie der Temperaturdifferenz über den Probenkörper festgestellt werden. Dabei ist die Messunsicherheit erwartungsgemäß umso geringer, je höher die Temperaturdifferenz über den Probenkörper und je geringer die mittlere Probenkörpertemperatur ist. Allerdings sind diesen Werten durch den Versuchsaufbau Grenzen gesetzt.

結果 (英文) 1:

Furthermore, the combined uncertainty of measurement of effective thermal conductivity in the normal pressure and vacuum tests was determined for the assessment of the measurement results. The measurement uncertainty in the normal range is approximately 4 to 10%. The effective thermal conductivity with an uncertainty of about 10% at 60 ° C and 4% at 205 ° C could be identified in the area of low pressure. It could a direct dependency between the combined uncertainty of measurement of effective thermal conductivity and the Middle sample body temperature as well as be determined the temperature difference across the test specimens. Where the measurement uncertainty is lower as expected, the higher the temperature difference of the specimens and the lower the average sample body temperature. However, limits are these values through the experimental set-up.

結果 (英文) 2:

Furthermore, it was intended to evaluate the measurement results, the combined uncertainty of the effective thermal conductivity in the normal pressure and vacuum tests. The uncertainty in the normal pressure range is from about 4 to 10%. In the pressure range, the effective thermal conductivity with an uncertainty of about 10% at 60 ° C and 4% at 205 ° C could be determined. There was a direct relationship between the combined measurement uncertainty of the effective thermal conductivity and mean specimen temperature and the temperature difference across the specimens are determined. The measurement uncertainty is expected to be lower, the higher the temperature difference over the specimen and the lower the average specimen temperature. However, these values ​​are set by the experimental set limits.

結果 (英文) 3:

furthermore, for the evaluation of the results was the combined uncertainty of the effective thermal conductivity in the normal pressure and unterdruckversuchen. the uncertainty in the normaldruckbereich is about 4 to 10%. the effective thermal conductivity in unterdruckbereich with an uncertainty of about 10% at 60 degrees c and 4% in 205 degrees are determined. there was a direct dependence between the combined uncertainty of the effective thermal conductivity and the middle probenkörpertemperatur and temperature difference on the probenkörper are identified. it is the uncertainty, as would be expected, the smaller, the higher the temperature difference on the probenkörper and the lower the average probenkörpertemperatur. however, these values through the experimental limits.