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Design of high temperature Engineering Test Reactor (HTTR)
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1994
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EngineeringReactor DesignNuclear Reactor DesignReactor AnalysisHttr Reactor FacilitySystems EngineeringNuclear MaterialsThermodynamicsSafety Demonstration TestsNuclear ReactorsNuclear Reactor OperationFusion Reactor MaterialElectrical EngineeringHeat TransferNuclear PowerNuclear EngineeringThermal HydraulicsNuclear SafetyReactor SafetySafety Analysis
Construction of the High Temperature Engineering Test Reactor (HTTR) is underway to advance basic technologies for high‑temperature gas‑cooled reactors and enable innovative high‑temperature research. The project aims to establish and upgrade basic technologies for high‑temperature gas‑cooled reactors and to conduct innovative high‑temperature research. The HTTR is a 30‑MW graphite‑moderated, helium‑cooled reactor operating at 850 °C (rated) and 950 °C (test), with planned irradiation, safety demonstration, and nuclear‑heat application tests, and its construction permit was granted in February 1990 after a 22‑month safety review. The report summarizes evaluations of nuclear and thermal‑hydraulic characteristics, outlines major system designs, presents R&D results, and details safety evaluation criteria, postulated events, analytical conditions, and computer codes used. Author: (author).
Construction of High Temperature Engineering Test Reactor (HTTR) is now underway to establish and upgrade basic technologies for HTGRs and to conduct innovative basic research at high temperatures. The HTTR is a graphite-moderated and helium gas-cooled reactor with 30 MW in thermal output and outlet coolant temperature of 850degC for rated operation and 950degC for high temperature test operation. It is planned to conduct various irradiation tests for fuels and materials, safety demonstration tests and nuclear heat application tests. JAERI received construction permit of HTTR reactor facility in February 1990 after 22 months of safety review. This report summarizes evaluation of nuclear and thermal-hydraulic characteristics, design outline of major systems and components, and also includes relating R and D result and safety evaluation. Criteria for judgment, selection of postulated events, major analytical conditions for anticipated operational occurrences and accidents, computer codes used in safety analysis and evaluation of each event are presented in the safety evaluation. (author).