Terrestrial energy imsr advanced reactor selected by canadian. The coreunit comes in a single size designed to deliver 400 megawatts of thermal heat which can be used for multiple applications. Mar 22, 2021 pdf in this paper, the advancement of the integral fast reactor ifr is studied. Dec 04, 2019 terrestrial energys imsr is an advanced reactor employing generation iv molten salt technology with a power output of 195 mwe. The main reactor structure is a tank containing a large pool of molten salt, the coolant salt. Teusa aice nh3 2017 10 24 ammonia energy association. Molten salt reactor msr experiment 19601969 expertise reinvigorated removal of fueled salt from msre geniv. Although both types are discussed in this report, the emphasis is on those reactors with liquid fuel because of the perception that solidfuel msrs will be. Integral molten salt fast reactor imsfr recently, yamawaki proposed a new system, integral molten salt fast reactor imsfr, in december, 2015 16. In chemical engineering device molten salt reactor fuel. W7405erg26 a new approach to the design of steam generators for molten salt reactor power plants a.
Jun, 2018 from a molten salt reactor msr along with renewable electrical energy from either wind or solar generation to efficiently produce hydrogen. Key issues differentiating molten salt reactors from lwrs fuel salt contacting materials are subjected to different stressors fluence, corrosion, and temperature instead of pressure salt chemistry control, structural alloy cladding, internal shielding, and replacement employed to mitigate impact of stressors. The integral molten salt reactor imsr is being developed at terrestrial energy as an smr. We use the molten salt breeder reactor as a proxy for development of ancillary system technology primary system instrumentation flux, flow, temperature, pressure mass accountancy corrosion monitoring and control offgas system functional containment system passive decay heat removal remote systems salt processing. The integral molten salt reactor imsr is being developed at terrestrial energy as an smr small modular reactor with an output of 400 mwth of 600 oc industrial heat andor 190 mwe of electrical production. Experimental infrastructures analytical and integral salt loops with real fuel salts are required to. In particular, thermal radiation heat transport rht is known to provide a key potential source of scaling distortion in simulant fluid experiments. Apr 01, 2021 terrestrial energy is developing revolutionary not simply evolutionary fission technology for electric power and hydrogen and much more.
Forsberg leads a team developing an integrated development plan for fusion reactors with salt blankets. It employs molten salt reactor technology which is being developed by the canadian company terrestrial energy. The design of the molten salt reactor experiment was begun in 1960. Innovative designs and calculations of msr neutronics joint ictpiaea workshop on physics and technology of innovative high temperature nuclear energy systems 1418 october 2019 ictp, miramare trieste, italy adriaan buijs mcmaster university. Comparative economic analysis of the integral molten salt reactor. Improved integral power plant design reactor core and.
Comparative economic analysis of the integral molten salt. Tei has demonstrated an understanding of cnsc requirements applicable to the design and safety analysis of the imsr400 tei has demonstrated its intent to comply with cnsc regulatory requirements and expectations for npps. Hybrid electricalthermal hydrogen production process. Imsr builds on 70 years of ornl reactor design work and relies on many demonstrated technologies. Once the design life of the imsr is reached, for example, in the range of 3 to 10 years, it is disconnected, removed and replaced as a unit. Based on the documentation submitted, cnsc staff have concluded that. Integral molten salt reactor nuclear energy agency. A key characteristic of msrs is their operation at or close to atmospheric pressure, rather than the 75150 times atmospheric pressure of typical lightwater reactors lwr, hence reducing the large, expensive containment structures used for. A singlefluid reactor was selected that in its engineering features resembled a converter, but the fuel salt did not contain thorium and thus was similar to the fuel salt for a twofluid breeder. Integral experiments with teflon and 7lifbef salt at lr0. Technology next generation molten salt reactor msr proprietary msr design the integral molten salt reactor imsr high technology readiness conducting basicpreliminary engineering work concludes with construction and licensing of the first commercial imsr power plant 400 mwth reactor. Saylor enough for inspiring me to pursue a degree in science through his amazing high school physics class. This includes reactors with the fuel within the salt as well as reactors using solid fuel.
Concept of molten salt fast reactor generation iv international. The integral molten salt reactor imsr developed by the terrestrial energy in canada is a 190mwe power msr adopting oncethrough fuel cycle. This negative temperature feedback assures reactor safety on overheating, even with loss of all control systems. The integral molten salt reactor is so called because it integrates into a compact, sealed and replaceable nuclear reactor unit, called the imsr coreunit. Conceptual design characteristics of a denatured moltensalt reactor. Jan 01, 2017 the integral molten salt reactor is a modular design msr chosen as a representative concept of the liquid fueled molten salt reactor family. This is a fundamentally different approach compared to conventional nuclear systems that use solid fuel.
The use of a graphite moderator and a highly thermalized neutron. Jan 01, 2017 reactor criticality control is assured through a negative temperature feedback made possible by molten salt fuel. Introduction current work follows the research of gen iv reactors containing coolant andor fuel in form of fluoride salts fluoride high temperature reactor, molten salt reactor. Construction materials are current, nuclear certified, steels with no need. The integral molten salt reactor imsr is designed for the small modular reactor smr market. Pbfhr, a molten salt cooled pebble bed reactor at u. Commercial deployment of teusas innovative gen iv integral. It employs molten salt reactor technology which is being. Pdf in the frame of a major reevaluation of the molten salt reactor msr, we have developed a new concept called thorium molten salt. The tank contains a diagrid which has holes into which the spikes of the fuel assemblies locate and which guides. The nordheim integral treatment was selected in each case. Jan 12, 2019 new applications of integral effects tests for molten salt reactor development james kendrick, chris poresky, and per f.
A molten salt reactor msr is a class of nuclear fission reactor in which the primary nuclear reactor coolant andor the fuel is a molten salt mixture. There is a longstanding and growing interest in molten salt. The system combined an msr fueled with chloride molten salt. Phenomena important in modeling and simulation of molten. Integral molten salt reactor imsr graphitemoderated integral leu burner terrapower. This talk will provide a historical overview of molten salt reactor development which will lead lead into a description and update on the development of the integral molten salt reactor imsr by terrestrial energy. Imsr is a proprietary design of molten salt reactor system and improves on the ornl designs. A liquid fuel offers unique advantages not enjoyed by reactors that use solid fuel. Peterson presented at the enabling the next nuclear. Pdf introduction to the physics of molten salt reactors. Relap5 3d is the latest code version in the series including more than 25 working fluids including water, gases, liquid metals, refrigerants, and molten. Terrestrial energy imsr advanced reactor selected by. Liquid fluoride thorium reactor lftr graphitemoderated twofluid th breeder thorcon power. The msr has a closed fuel cycle that can be tailored for thefficient burnup of e plutonium and minor.
Reducing the burden of high level radioactive waste with. This report advances that strategy for reactors that will use molten salts msrs. Laboratory for generating lowcost power while extending the nations. Molten salt fuel does not degrade by heat or radiation, so there are effectively no reactor power limits to the fuel. Reactor criticality control is assured through a negative temperature feedback made possible by molten salt fuel. Oct 16, 2020 terrestrial energys integral molten salt reactor imsr power plant, according to the company, to be 50% more efficient than traditional reactors and suited for deployment in remote communities and industrial operations, including ongrid and offgrid power provision. Terrestrial energy leading the way to a bright energy future.
Integral core architecture fully passive safety imsr technology readiness smahtr ornl. In the msfr, the liquid fuel processing is an integral part. Complete patent searching database and patent data analytics services. Fhrs to megawatts workshop on december 12, 2018 history and context of integral effects tests integral effects tests, in concert with separate effect tests, are. The integral molten salt reactor 400 megawattsthermal imsr400 is a small modular molten salt. Key issues differentiating molten salt reactors from lwrs fuel salt contacting materials are subjected to different stressors fluence, corrosion, and temperature instead of pressure. It is believed that the new reentry tube concept proposed in a draft of this report substantially as it now. The relap5 series of codes has been developed at idaho national laboratory. The use of a graphite moderator and a highly thermalized neutron spectrum gives multiple advantages for standard operations.
Waas i this report was prepared as an account of work sponsored by the united states government. Some advanced reactors embed more of the fuel cycle into reactor facility integral fast reactor molten salt reactors current safeguards implementations do not address implications of fluid fuel forms additional monitoring likely to be required that doesnt exist today item counting and visual accountability of fuel may not. Status of metallic structural materials for molten salt reactors. Moltensalt breeder reactors msbrs are being developed by the oak ridge national. It is based closely on the denatured molten salt reactor dmsr, a reactor design from oak ridge national laboratory. He is a fellow of the american nuclear society, a fellow of the american association for the. The present relates to the integration of the primary functional elements of graphite moderator and reactor vessel andor primary heat exchangers andor control rods into an integral molten salt nuclear reactor imsr. Imsr builds on 50 years of ornl reactor design work and relies on many demonstrated technologies. Methods to predict thermal radiation and to design scaled. Breeder reactor 311 mwe 840 mwth core outlet temp 485oc fuel enrichment. Tei is designing a 400thermalmegawatt integral molten salt reactor imsr400, with a net electrical output of approximately 200 megawatts.
It is currently the subject of regulatory engagement in both. Neither the united states nor atomic energy commission, nor any of their employees, nor any of. The integral molten salt reactor imsr is designed and developed by the terrestrial. Nov 14, 2020 at mit he is the pi to build a salt loop in the mit reactor the first reactor salt loop in 40 years in the u.
Molten salt reactors msrs with fluoride salt typically have a thermal neutron spectrum. Integral molten salt reactor download pdf info publication number us10056160b2. Moltensalt reactors msrs can provide inexpensive industrial process heating in addition to generat ing electricity. The hys process, being a two step process, can act as a buffer and store thermal energy chemically as liquid so 2, to be used to generate hydrogen as required to minimize generation and storage costs. Molten chloride fast reactor mcfr chloridebased fast upu cycle reactor flibe energy. The molten salt reactors msrs make use of fluoride salt as primary cooler. To achieve this, we use completely different nuclear technology a molten salt as coolant and fuel in our integral molten salt reactor imsr power plant. A general overview of generation iv molten salt reactor msr and.
Terrestrial energy, national lab, southern company. As discussed by perry and bauman1 a molten salt reactor can be designed as either a breeder, or, with relatively few major differences other than in fuel processing, as a converter. Stable salt reactor design concept thorium energy world. Relap5 3d is the latest code version in the series including more than 25 working fluids including water, gases, liquid metals, refrigerants, and molten salts. The imsr concept being a simple graphite moderated.
Phenomena important in modeling and simulation of molten salt. An overview of the integral molten salt reactor uwmadisons. The developers from the terrestrial energy company are designing three versions of this reactor for different electric power levels. Preliminary quantitative feasibility analysis of proposed thorium. Thorcon msr, thorium, high temperature, molten salt. There are also fastspectrum reactors that could use chloride salts to transfer heat. Molten salt reactors msrs are nuclear reactors that use a fluid fuel in the form of a molten fluoride or chloride salt. Reviu implementasi thorcon molten salt reactor di indonesia neliti. Molten salt reactor thorcon msr merupakan jenis pltn generasi ke4 yang dirancang oleh. Presented set of integral experiments with highly fluorinated compounds show satisfactory agreement in criticality, especially in case of teflon. This particular design study is confined to the single fluid molten salt breeder reactor msbr. An overview of the integral molten salt reactor simon irish. Status of metallic structural materials for molten salt.
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