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Conference Article: Power Operation Commissioning Tests Of HTR-10

Shouyin Hu, Ruipian, Wang, Institute of Nuclear Energy Technology, Tsinghua University, Beijing, CHINA

Abstract

The 10MW High Temperature Gas-cooled reactor-test Module (HTR-10) is a graphite-moderated helium gas-cooled reactor. It is the first gas-cooled reactor in China. The first criticality of HTR-10 was attained on December 26,2000. After completed the commissioning tests on phase A and B and the experimental results were evaluated carefully, the National Nuclear Safety Administration (NNSA) of China licensed rise to power experiments, called phase C commissioning test in November 2002. There are total 20 test items on phase C that are separated into two sub-phases C1: 0-30% rated power test and C2: 30%-100% rated power test. Items of the rise to power test can be categorized to two kinds, one is for commissioning equipments and systems that cannot be conducted before provided qualified steam and another is for evaluating performance of HTR-10. The total 20 items commissioning test on phase C were fulfilled in about three months. On January 26,2003 it was confirmed that the thermal power and the reactor outlet helium temperature reached to 10MW and 700°C respectively. The experimental results indicate that the basic performance and main technology specifications meet the designed requirements. The measured values are good agreement with designed values. The codes employed in design and analyses are available. Moreover, the results of three primary safety performance tests include helium blower trip, lose off-site power and turbine trip not only verified the functions of protection system but also confirmed inherent safety of HTR-10 that is the fuel temperature cannot increase under the condition of lose active cooling accident. In this paper, the main test results include reactivity balance, the process of power raised, capability of decay heat removal system, measurements of the dose field and lose off-site power test are presented.

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key words: HTR-10, Gas-cooled reactor, commissioning, safety performance, reactivity balance, decay heat removal system, dose field
Reference:
Proceedings of the Conference on High Temperature Reactors, Beijing, China, September, 22-24, 2004
International Atomic Energy Agency, Vienna (Austria)
HTR-2004, pp:1-13