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Real-time reactor coolant system pressure/temperature limit system

  • US 4,997,617 A
  • Filed: 11/28/1988
  • Issued: 03/05/1991
  • Est. Priority Date: 11/28/1988
  • Status: Expired due to Term
First Claim
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1. A system, used in controlling the operation of a nuclear reactor coolant system, which automatically calculates and displays allowable reactor coolant system pressure/temperature limits within the nuclear reactor coolant system based upon real-time inputs, comprising:

  • means for producing signals representative of real-time operating parameters of the nuclear reactor cooling system;

    means for developing pressure and temperature limits relating said real-time operating parameters of the nuclear reactor coolant system, for normal and emergency operation thereof;

    means for processing said signals representative of real-time operating parameters of the nuclear reactor coolant system to perform calculations of a best estimate of input signals, check manual inputs against permissible values, and test data acquisition hardware for validity and over/under range; and

    means for comparing said representative signals with said limits for said real-time operating parameters to produce a signal for a real-time display of said pressure and temperature limits and of said real-time operating parameters for use by an operator in controlling the operation of the nuclear reactor coolant system.

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