high temperature gas reactor
Full Record; Other Related Research; Abstract. A description of the 710 Reactor concept and its significant design features is presented. 710 high-temperature gas reactor program summary report. 3 There are variants on the gas cooled reactor, for instance both GT-MHR and PBMR use the direct gas turbine cycle. 18.00 2013. he High Temperature Gas-cooled Reactor (HTGR) nuclear heat supply system (NHSS) is composed of three major components: a helium-cooled nuclear reactor, a heat transport system, and a cross vessel that routes the helium between the reactor and the heat transport system. • Greater buildup of minor actinides • Stronger negative fuel temperature feedback § HTGR: -7 pcm/K § PWR: -1 to -4 pcm/K . The first nuclear reactor demonstrating the feasibility of a sustained and controlled chain reaction was built in Chicago in 1942. This paper provides a summary of the design and its main attributes. 1674 . 10.1155/2008/265430. What is High Temperature Gas-cooled Reactor (HTGR) ? In 1957, a nuclear reactor produced electricity for the first time. To enhance its economic benefit, the capital cost of MHTGR can be decreased by combining more reactor modules into one unit and realize the batch constructions in the concept of modularization. ); firstname.lastname@example.org (L.X.) The Japan Atomic Energy Agency (JAEA, former Japan Atomic Energy Research Institute) began research and development of high temperature gas-cooled reactors for the multi-purpose use of nuclear / thermal energy in 1969. It was first developed for use in high-temperature gas reactors, but can also be applied to molten salt and liquid metal reactor designs. Core . Gas in a High-Temperature Reactor Jinhua Chen 1,2,*, Guangcai Wen 1,2, Song Yan 3, Xiangyun Lan 1,2 and Lu Xiao 1,2 1 State Key Laboratary of the Gas Disster Detecting, Preventing and Emergency Contrlling, Chongqing 400037, China; email@example.com (G.W. These designs are now referred to as High Temperature (Gas) Reactors – HTR or HTGR. "Modular High-temperature Gas-cooled Reactor Power Plant" introduces the power plants driven by modular high temperature gas-cooled reactors (HTR), which are characterized by their inherent safety features and high output temperatures. November 28, 2013 at 12:50 PM. LWR. Academic M.V. Significant efforts are underway in several Member States to develop high temperature gas cooled reactors (HTGR) based on either pebble bed or prismatic designs. The PBMR comprises a steel pressure vessel which holds about 450,000 fuel spheres. SFR. [Photo/CNNC] A major milestone was achieved at the high-temperature gas-cooled reactor, also known as the HTGR project -- located at the Shidaowan nuclear power plant in Weihai city, in East China's Shandong province -- according to local officials. The High Temperature Gas-cooled Reactor: Safety considerations of the (V)HTR-Modul ©EU. The high-temperature gas-cooled reactor (HTGR), as mentioned above in Fuel types, is fueled by a mixture of graphite and fuel-bearing microspheres. Engineer-Poet says. High Temperature Gas Cooled Reactor (HTGR) provides another solution. Exercises and results will enhance the detailed understanding of events and processes, and identify where further efforts should be directed to improve modelling and simulation capabilities. We’re focused on Gen-IV High-Temperature Gas-cooled Reactors (HTGR) as the technology of choice, with advantages in sustainability, economics, reliability and safety. Volume I. Their assessment is that the HTGR, with its unique capability to provide coolant temperatures … The HTR has more than 50 years of somewhat chequered history behind it. English IAEA-TECDOC-CD-1674 978-92-0-186810-7. Abstract: Nuclear energy production is a recent technology. The high-temperature gas-cooled reactor demonstration project at Shidaowan nuclear power plant. In particular this report addresses the comments provided by INL and documented in TEV-1463 Rev. It is a graphite-moderated, helium-cooled reactor with thermal neutron spectrum. In particular this report addresses the comments provided by INL and documented inTEV-1463 Rev . Superior inherent safety. The checkered history of high-temperature gas-cooled reactors . 5-8 cm ~ 1 ~20. mean free path. The first serious thinking about achieving high temperatures in a gas-cooled reactor can be attributed at Harwell to Stefan Bauer, who, in the years 1948–1949, was considering a bed of beryllium oxide balls coated with uranium and recoated with beryllium oxide as fuel. The very high temperature reactor is cooled by flowing gas and is designed to operate at high temperatures that can produce electricity extremely efficiently. High temperature gas reactors have the unique ability to use the Brayton cycle. THE HIGH TEMPERATURE GAS COOLED REACTOR TEST MODULE CORE PHYSICS BENCHMARKS 4.1 HTR-10 GENERAL INFORMATION China has a substantial programme for the development of advanced reactors that have favorable safety features, economic competitiveness and uranium resource availability. Within GIF, Mr. It can supply nuclear heat and electricity over a range of core outlet temperatures between 700 and 950°C, or more than 1 000°C in future. The government has set a long-term goal of reducing greenhouse gas emissions by 80% by 2050 to achieve decarbonization in Japan. Generation Nuclear Plant Project, the DOE initiative to develop and demonstrate a high temperature gas-cooled reactor (HTGR). The VHTR is a next step in the evolutionary development of high-temperature gas-cooled reactors. I was pondering the reuse of LWR fuel as seed material for a U/Pu/Th fuel. 0, (INL, 2012). Relative Size (mfp) of Fuel and Core. The fuel, core structure, and coolant in HTGR can all withstand high temperature. My analysis indicates that breeding is a possibility in high temperature gas reactors using TRISO particle fuel, but even a very high conversion ratio may lead to extended life cores. The modular high-temperature gas-cooled reactor (MHTGR) design serves as a basis for the benchmark, with some aspects having been modified for simplicity and consistency. A high temperature gas-cooled reactor, or HTGR, is an inherently safe, modular, underground helium-cooled nuclear reactor technology. The first plants were small experimental ones – a 20 MWe unit … TRISO Fuel Pellet(Fresh) is the fuel used in this setup. Over the past five decades, high temperature gas-cooled reactors (HTGRs) have been designed and operated throughout the world. 3-4 cm ~10 ~30. Abstract – The modular high temperature gas-cooled reactor (MHTGR) is characterized with the inherent safety. 80% of reactor thermal power can be utilized by a cascade energy system for hydrogen production, power generation and desalination. With the single phase Brayton cycle efficiencies of 48% can be easily achieved. HTRs have the potential to be adopted near demand side to supply both electricity and process heat, directly replacing conventional fossil fuels. Helium gas cooled reactor with outlet coolant temperature of 950ºC. The high-temperature gas reactor also has excellent safety features and can generate heat of 900°C or higher, which is significantly higher than that of conventional light-water reactors. 2 China Coal Technology Engineering Group Chongqing Research … The PBMR is a High Temperature Gas cooled Reactor (HTGR), with a closed-cycle, gas turbine or Brayton power conversion system. Declassified 6 Sep 1973. The NHSS supplies … … High-temperature gas-cooled reactors (HTGRs) also known as very-high-temperature reactors (VHTR) are Generation IV reactors that can operate at very high temperatures and use gas as a coolant. 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. for high temperature gas reactor applications. All these reactors are primarily fuelled by TRISO (tri iso-structural) coated particles.
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