In-situ Condition Monitoring of Components in Small Modular Reactors Using Process and Electrical Signature Analysis. Final report, volume 1. Development of experimental flow control loop, data analysis and plant monitoring

Upadhyaya, B.R.; Hines, J. Wesley; Damiano, B.; Mehta, C. H.; Collins, Price; Lish, Matthew R.; Cady, Brian; Lollar, Victor; Wet, Dane de; Bayram, Duygu

doi:10.2172/1183686

Cited by 2 publications

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“…The direct measurement of process variables such as the primary coolant flow rate is restricted because of the limited space and the penetrations of the RPV, thus making it difficult to install flow meters for direct measurement. Experimental studies and theoretical analysis [4] indicate a direct relationship between the flow rate and electrical power of the motor driving the pumps. The pump hydraulic power is a function of the pump head and flow rate; hence, pump discharge is a function of motor power.…”

Section: Introductionmentioning

confidence: 99%

Instrumentation and control strategies for an integral pressurized water reactor

Upadhyaya

Lish

Hines

et al. 2015

Nuclear Engineering and Technology

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Available online xxx Keywords:Control development Integral pressurized water reactor Nonintrusive measurement Reactor system modeling Sensor placement Small modular reactor a b s t r a c t Q 2Several vendors have recently been actively pursuing the development of integral pressurized water reactors (iPWRs) that range in power levels from small to large reactors.Integral reactors have the features of minimum vessel penetrations, passive heat removal after reactor shutdown, and modular construction that allow fast plant integration and a secure fuel cycle. The features of an integral reactor limit the options for placing control and safety system instruments. The development of instrumentation and control (I&C) strategies for a large 1,000 MWe iPWR is described. Reactor system modelingdwhich includes reactor core dynamics, primary heat exchanger, and the steam flashing drumdis an important part of I&C development and validation, and thereby consolidates the overall implementation for a large iPWR. The results of simulation models, control development, and instrumentation features illustrate the systematic approach that is applicable to integral light water reactors.

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Section: Introductionmentioning

confidence: 99%

Instrumentation and control strategies for an integral pressurized water reactor

Upadhyaya

Lish

Hines

et al. 2015

Nuclear Engineering and Technology

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Monitoring Pump Parameters in Small Modular Reactors Using Electric Motor Signatures

Upadhyaya

Mehta²,

Hines

et al. 2016

Journal of Nuclear Engineering and Radiation Science

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Small modular nuclear reactors (SMRs) are designed for long-term operation with minimum outages and for possible deployment in remote locations. To achieve this operational goal, the SMRs may require remote and continuous monitoring of performance parameters that contribute to operation and maintenance. This feature is also important in monitoring critical parameters during severe accidents and for postaccident recovery. Small integral light water reactors have in-vessel space constraints, and many of the traditional instrumentation are not practical in these systems. To investigate this issue, analytical and experimental researches were carried out using a flow test loop to characterize the relationship among process variables (flow rate and pressure) and pump motor signatures. The findings of this research are presented, with implications in relating electrical signatures to pump parameters. The relationship between the electrical signatures and the process variables is discussed with reference to the experimental results. The results of this work may be used for monitoring process variables in small modular reactor systems.

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In-situ Condition Monitoring of Components in Small Modular Reactors Using Process and Electrical Signature Analysis. Final report, volume 1. Development of experimental flow control loop, data analysis and plant monitoring

Cited by 2 publications

References 0 publications

Instrumentation and control strategies for an integral pressurized water reactor

Instrumentation and control strategies for an integral pressurized water reactor

Monitoring Pump Parameters in Small Modular Reactors Using Electric Motor Signatures

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