MITR RELAP5 Model Validations at Steady States and Transients

Journal Article · Sat Jul 01 04:00:00 EDT 2017 · Transactions of the American Nuclear Society

OSTI ID:23050401

Zhang, Wenwen ^[1]; Wang, Yu-jou ^[2]; Sun, Kaichao; Hub, Lin-wen ^[2]

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1. Department of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China (China)
2. Nuclear Reactor Laboratory, Massachusetts Institute of Technology, Cambridge, MA, 20139, USA (United States)

The Massachusetts Institute of Technology Reactor (MITR-II) is a 6 MW university research reactor designed primarily for experiments using neuron beams and in-core irradiation facilities, and education. The objective of this study is to validate the MITR RELAP5 model, which includes the reactor core, primary coolant loop, secondary coolant loop and heat exchanger models. Two sets of operational data were collected for validation. Steady-state data for 1 MW, 3 MW, 5.5 MW was obtained in the first test. The continuous startup transient data and the cooling tower outlet coolant temperature reduction obtained during the second test. The five steady-state conditions and two transient conditions were calculated by the RELAP5. The reactor power and cooling tower outlet temperature were used as boundary conditions while the reactor core inlet temperature and outlet temperature were calculated. A comparison was made between the modeling results and the temperature measurements. The results show that the MITR RELAP5 modeling results are in good agreement with measurement data for both steady-state and transient conditions.

• OSTI ID: 23050401
• Journal Information: Transactions of the American Nuclear Society, Journal Name: Transactions of the American Nuclear Society Vol. 116; ISSN 0003-018X
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
42 ENGINEERING
BOUNDARY CONDITIONS
COMPUTERIZED SIMULATION
HEAT EXCHANGERS
IRRADIATION PLANTS
PRIMARY COOLANT CIRCUITS
REACTOR CORES
REACTOR DESIGN
RESEARCH REACTORS
SECONDARY COOLANT CIRCUITS
STEADY-STATE CONDITIONS
TEMPERATURE MEASUREMENT
TRANSIENTS
VALIDATION