Arrhenius Calculation Factors
The
Arrhenius Calculation Factors window provides for computing the failure rate, activation energy, K factor, or temperature given that the values for the three other parameters are known. As described in
Arrhenius Method, clicking the
Arrhenius Factors button opens this window.
The parameter values entered for the Arrhenius method in the
Prediction Data pane are shown in the
Arrhenius Calculation Factors window. The K factor is the default factor for which to solve. However, if the K factor and two additional factors are known, you can solve for the fourth factor. For example, if the K factor, activation energy, and temperature are known, you can solve for the failure rate. For more information, see
Arrhenius Failure Rate Equation.
1. Select the factor for which to solve.
2. Specify values for the other three parameters. If you specify the temperature, enter it in degrees C. It is automatically converted to the absolute temperature in degrees Kelvin that the Arrhenius failure rate equation uses.
3. Click Calculate. The selected factor is calculated to the precision available in the Prediction Data pane. This is 6 decimal places for failure rate, 2 decimal places for activation energy and K factor, and 1 decimal place for temperature.
4. To copy the data entered or calculated in the Arrhenius Calculation Factors window to the Prediction Data pane, click OK. To close this window without copying data to the Prediction Data pane, click Cancel.