Very High Temperature Reactor Collaborative R&D, Demo Projects, Market ... Hydrogen production test facility at JAEA Oarai 2.3 H 2 Production. The VHTR system is designed to be a high-efficiency system that can supply process heat to a broad spectrum of high-temperature and energy-intensive, nonelectric process-es. The annual world production of hydrogen amounts to some 50 million tonnes and the majority is produced using fossil fuels like natural gas, coal and naphtha. high-temperature reactor has 50% efficiency (heat to electricity) and electrolysis has 70% efficiency (electricity to hydrogen), the overall efficiency is only 35%. C . with High Temperature Reactors District heating seawater desalination Petroleum refining Oil shale and oil sand processing Cogeneration of electricity and steam Steam reforming of natural gas HTSE and thermo-chemical hydrogen production coal gasification 0 100 200 300 400 500 600 700 800 900 1000 Process temperature, °°°°C 250-550 °°°°C HIGH TEMP. 3. Slide 15 Objectives: • Tools to assess reactor performance in normal, upset and accident conditions. Pressurised Water Reactor (PWR) 275. o. Construction of a phenomena identification and Electrolysis Technology The VHTR is a type of high-temperature reactor (HTR) that can conceptually have an outlet temperature of 1000 °C. The very-high-temperature reactor (VHTR), or high-temperature gas-cooled reactor (HTGR), is a Generation IV reactor concept that uses a graphite-moderated nuclear reactor with a once-through uranium fuel cycle. The use of hydrogen is predicted to increase substantially in the future, both as chemical feedstock and also as energy carrier for transportation. Hydrogen energy is an emerging source that provides future energy. Very High Temperature Reactor (VHTR) T. he Very-High-Temper-ature Reactor (VHTR) is a graphite-moderated, helium-cooled reactor with a once-through uranium fuel cycle. Very High Temperature Reactor Collaborative R&D, Demo Projects, Market Michael A. Futterer (EU) on behalf of the GIF VHTR System Steering Committee michael.fuetterer@ec.europa.eu GIF - IAEA Interface Meeting Vienna, 26-27 March 2018 The VHTR is a helium-cooled, graphite-moderated, thermal neutron spectrum reactor with a coolant outlet temperature of 1000 °C or above. and hydrogen production provided by its high operating temperatures. Fig. THE ADVANCED HIGH-TEMPERATURE REACTOR The primary challenge for nuclear H2 production is the requirement to deliver heat to the thermochemical plant at very high temperatures. Introduction Due to uncertainties in the future of fossil energy supplies, including coal and natural gas, interest in renewable energy is gradually increasing worldwide. Molten Salt Reactor (MSR) 600. oC - 800oC . HYDROGEN PRODUCTION 29 Source: “H2-MHR Pre Conceptual Design Report: S-I Based Plant” [Richards 2006] Similar configurations for Hybrid Sulfur (Westinghouse) thermochemical cycle or High Temperature Steam Electrolysis with very high temperature process heat The very high temperature reactor is cooled by flowing gas and is designed to operate at high temperatures that can produce electricity extremely efficiently. hydrogen production, nuclear hydrogen, electrolyzer, very high temperature reactor (VHTR) I. Nuclear heat for hydrogen production: Coupling a very high/high temperature reactor to a hydrogen production plant It will be a mid-size reactor with a thermal power of about 600 – 800 MWth. C - 325. o. 6.12 High-temperature test reactor (HTTR) coupled to a hydrogen production plant based on a small modular reactor (SMR) 204 6 Nuclear Hydrogen Production Plants Outlet Temperature . Very High Temperature Reactor (VHTR) 750oC - 1,000 oC . 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