Instrumentation Needs for Integral Primary System Reactors (IPSRs) - Task 1 Final Report

Storrick, Gary D. ; Petrovic, Bojan ; Oriani, Luca ; Conway, Lawrence E. ; Conti, Diego

Westinghouse Electric Company LLC

关键词: Iris;    Financing;    Modifications;    Implementation;    Functionals;   

DOI  :  10.2172/933156
RP-ID  :  STD-AR-05-01
RP-ID  :  FG07-05ID14690
RP-ID  :  933156

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report presents the results of the Westinghouse work performed under Task 1 of this Financial Assistance Award and satisfies a Level 2 Milestone for the project. While most of the signals required for control of IPSRs are typical of other PWRs, the integral configuration poses some new challenges in the design or deployment of the sensors/instrumentation and, in some cases, requires completely new approaches. In response to this consideration, the overall objective of Task 1 was to establish the instrumentation needs for integral reactors, provide a review of the existing solutions where available, and, identify research and development needs to be addressed to enable successful deployment of IPSRs. The starting point for this study was to review and synthesize general characteristics of integral reactors, and then to focus on a specific design. Due to the maturity of its design and availability of design information to Westinghouse, IRIS (International Reactor Innovative and Secure) was selected for this purpose. The report is organized as follows. Section 1 is an overview. Section 2 provides background information on several representative IPSRs, including IRIS. A review of the IRIS safety features and its protection and control systems is used as a mechanism to ensure that all critical safety-related instrumentation needs are addressed in this study. Additionally, IRIS systems are compared against those of current advanced PWRs. The scope of this study is then limited to those systems where differences exist, since, otherwise, the current technology already provides an acceptable solution. Section 3 provides a detailed discussion on instrumentation needs for the representative IPSR (IRIS) with detailed qualitative and quantitative requirements summarized in the exhaustive table included as Appendix A. Section 3 also provides an evaluation of the current technology and the instrumentation used for measurement of required parameters in current PWRs. Section 4 examines those instrumentation/measurement needs where differences between IRIS and present PWRs exist and the current PWR implementation cannot be directly employed, and identifies two subcategories. In the first group, resolution can be readily identified, and is essentially an engineering solution (for example, modification of an existing approach, adaptation of existing instrument etc.). The second group presents true technological challenges as it may require new technology development. I n these cases, high level functional requirements have been identified together with relevant technical considerations to guide future development activities.