| 摘要 |
<p>The accuracy of monitoring a process involving heat exchange, as in the case of monitoring the "instantaneous" power output of a nuclear reactor may be improved by reading the steady state rate from the heat transfer indicated by the coolant, and obtaining a second reading representative of the rate of change in power level, using a neutron flux read out from one or more selected reaction zones to provide a fast response value for the rate of change. Integration of this rate value gives an accurate value for the extent of power rate change, which can be added to the first, steady state thermal read out, to give a power reading of short response time and acceptable accuracy. The dynamic error resulting from the flow time of coolant in passing through the process is also corrected by introducing a time delay allowance which reduces the coolant quantity and temperature parameter readings to a common datum.</p> |
