modular helium iv

FOURTH GENERATION REACTOR CONCEPTS - mragheb.com

Modular Helium Reactor (GT-MHR) or a Pebble bed Modular Reactor (PBMR). TheVery High Temperature Reactor or VHTR is a fourth generation gas cooled reactor design that would produce both electricity and hydrogen (Fig. 4).

Optimization of the gas turbine-modular helium reactor ...

The purpose of this paper is to provide an overview of the Instrumentation and Control design for the Gas Turbine -Modular Helium Reactor (GT-MHR), under development by General Atomics in San Diego, CA, as supported by the U.S. Dept. of Energy for the U.S. Generation IV Program and the U.S./Russian Plutonium Disposition Program.

Next Generation Nuclear Plant Reactor Pressure Vessel ...

GIF Generation IV International Forum GT-MHR Gas Turbine-Modular Helium Reactor HFIR High-Flux Isotope Reactor HTDM high-temperature design methodology HTGR High-Temperature Gas Reactor HTV High Temperature Vessel IHX Intermediate Heat Exchanger INL Idaho National Laboratory ISI In-Service Inspection JSW Japan Steel Works

WASHINGTON, D.C. 20555-0001 - nrc.gov

MODULAR HELIUM REACTOR CHARACTERISTICS ATTRACTIVE FOR GEN IV GOALS _ Helium gas coolant (inert) A Refractory fuel * (high temperature capability) * Graphite reactor core (high temperature stability) * Low power density (order of magnitude lower than LWRs) * Demonstrated technologies.EFFICIENT, * RELIABLE PERFORMANCE WITH INHERENTSAFETY ...

Small Modular Reactors (SMRs) - ANS CT Section

Jan 19, 2012· – AREVA based the design for the Antares on the concept of a gas- cooled (helium) reactor. The company is developing the design in the context of the Generation IV International Forum. • General Atomics Gas Turbine Modular Helium Reactor (GT -MHR) – The GT-MHR is a high-temperature reactor with advanced gas turbine technology. •

Generation IV Nuclear Reactors: WNA - World Nuclear ...

Generation IV Nuclear Reactor information paper, including the Generation IV Forum. Information from the World Nuclear Association, the global private-sector organization providing information on nuclear power, nuclear energy, and the use of nuclear energy in meeting the needs of …

Very High-Temperature Reactor (VHTR) Proliferation ...

GIF Generation IV International Forum GT-MHR gas-turbine modular helium-cooled reactor HEU highly enriched uranium HTGR high-temperature gas-cooled reactor HTR modular high-temperature reactor HTR-PM high-temperature reactor–pebble bed module …

Generation IV reactor - Wikipedia

The European Sustainable Nuclear Industrial Initiative is funding three Generation IV reactor systems, one of which is a gas-cooled fast reactor, called Allegro, 100 MW(t), which will be built in a central or eastern European country with construction expected to begin in 2018.

High Temperature Gas Reactors - an overview ...

Recently, the designs have been proposed for modular and larger systems rated between 600 and 2400 MWt for high-temperature operation to 850°C. They use helium as coolant, which is neutron transparent as is preferable with fast-neutron spectrum, with reactor outlet temperature of 850°C. Helium is inert and benign with structural materials.

High Temperature Gas Reactors - MIT

Modular High Temperature Pebble Bed Reactor • Modules added to meet demand. • No Reprocessing •H igh Burnup >90,000 Mwd/MT •D irect Disposal of HLW • Process Heat Applications - Hydrogen, water • 120 MWe • Helium Cooled • 8 % Enriched Fuel • Built in 2 Years • Factory Built •S ite Assembled • On- …

NGNP Point Design – Results of the Initial Neutronics and ...

NGNP Point Design –Neutronics and Thermal-Hydraulic Assessments During FY-03 3 Executive Summary This report presents the preliminary preconceptual designs for two possible versions of the Next Generation Nuclear Plant (NGNP), one for a prismatic fuel type helium gas-cooled reactor and one for a pebble bed fuel helium gas reactor.

Modeling and Transient Analysis for the Pebble Bed ...

2) Helium cooled very high temperature reactor (VHTR) There has been a recent resurgence of interest for helium cooled high temperature reactors, with for instance the commissioning of the pebble bed research reactor HTR-10 in China in 2002 and the operation of the 30 MW t hexagonal fuel block HTTR in Japan since 1998.

Status of Alloy 800 H in Considerations for the Gen IV ...

ABB/Combustion Engineering, Inc., Bechtel National, Inc., Gas-Cooled Reactor Associates, General Atomics, Massachusetts Institute of Technology, Oak Ridge National Laboratory, Stone & Webster Engineering Corp., 1994, "Evaluation of the Gas Turbine Modular Helium Reactor," Gas-Cooled Reactor Associates, San Diego, CA, Paper No. DOE-GT-MHR ...

Proliferation Resistance and Physical Protection of the ...

This report presents the status of proliferation resistance and physical protection (PR&PP) characteristics for each of the six nuclear energy systems selected by the Generation IV International Forum (GIF) for further research and development. The intent is …

ASSESSMENT OF PASSIVE DECAY HEAT REMOVAL IN THE …

ASSESSMENT OF PASSIVE DECAY HEAT REMOVAL IN THE GENERAL ATOMIC MODULAR HELIUM REACTOR A Thesis by FRANCOIS GUILHEM COCHEME Submitted to Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved as to style and content by: Kenneth L. Peddicord Yassin A. Hassan

GT-MHR - INL Advanced Reactor Technologies

iv Table of Contents ... Gas-Turbine, Modular Helium Reactor (GT-MHR) and the expected performance of this spent fuel in a mined geologic repository. This assessment is based on the assumptions that the GT-MHR is fueled with low-enriched uranium and operates with a once-through fuel cycle. The fuel

ANS Standard 53.1, Nuclear Safety Criteria for the Design ...

Criteria for the Design of Modular Helium-Cooled Reactor Plants" and is identified as ANS Standard 53.1. The scope of ANS 53.1 has been developed to explicitly apply to the type of passively safe, modular helium cooled reactor plants currently under development by several organizations in the world. The intent of ANS

REACTOR (GTwMHR) COMMERCIALIZATION PROGRAM …

MODULAR HELIUM REACTOR CHARACTERISTICS ATTRACTIVE FOR GEN IV GOALS * Helium gas coolant (inert) * Refractory fuel (high temperature capability) * Graphite reactor core (high temperature stability) * Low power density (order of magnitude lower than LWRs) * Demonstrated technologies.. EFFICIENT, RELIABLE PERFORMANCE WITH INHERENTSAFETY + GENERAL ...

REPORT TO CONGRESS Final - Department of Energy

iv Phase 2 also includes finalizing the design of all safety systems in order to facilitate the preparation and submittal of a COLA to the NRC in accordance with the licensing strategy recommended in the NGNP Licensing Strategy Report to Congress (2008). The COLA is …

Generation IV nuclear reactors: Current status and future ...

The PBMR (Pebble Bed Modular Reactor) was a South African program for the development of a PB core VHTR. This reactor has a thermal power of 400 MWth, a COT of 900 °C and adopts a direct helium Brayton cycle for electricity production.A prototype was planned in Koeberg with commissioning in 2014, but the program was terminated in 2010.

Nuclear Hydrogen Initiative - eere.energy.gov

Nuclear Hydrogen Initiative. Office of Nuclear Energy, Science and Technology ... Nuclear Energy (Gen IV, NERI, I-NERI), Energy Efficiency and Renewable Energy, and Fossil Energy Program Milestones (may be revised by R&D Plan) ... "Hydrogen Production Plant Using the Modular Helium Reactor" ...

MODULAR HELIUM REACTOR DEPLOYMENT FOR FLEXIBLE ENERGY ...

The Modular Helium Reactor (MHR) is one of the advanced reactor concepts within the internationally- supported Generation IV program. Because of its design features and design maturity, the MHR ...

High Temperature Gas Reactors - pnnl.gov

iv Summary Current interest expressed by industry in HTGR plants, particularly modular plants with power up to about 600 MW(e) per unit, has prompted NRC to task PNNL with assessing the currently available literature related to codes and standards applicable to …

Test Plan for Helium Circulators (PHTS, SCS, SHTS)

Test Plan for Helium Circulators (PHTS, SCS, SHTS) 911138/0 1 1 INTRODUCTION Gas cooled nuclear reactor circulators have been used for several decades to circulate primary coolant CO 2 and helium through various types of high temperature gas cooled reactor cores.

Generation IV reactor - Wikipedia

Generation IV reactors (Gen IV) are a set of nuclear reactor designs currently being researched for commercial applications by the Generation IV International Forum, with technology readiness levels varying between the level requiring a demonstration, to economical competitive implementation. They are motivated by a variety of goals including improved safety, sustainability, efficiency, and cost.

Can the Modular Helium Reactor Compete in the Hydrogen …

production: the Modular Helium Reactor (MHR). SMR and MHR could compete in the centralized production of hydrogen, where all production is sold via pipeline. Section 2 presents a model of the average cost of hydrogen with Steam Methane Reforming as a function of the price of natural gas.

Advanced Fuels Modeling: Evaluating the Steady-State ...

ADVANCED FUELS MODELING: EVALUATING THE STEADY-STATE PERFORMANCE OF CARBIDE FUEL IN HELIUM-COOLED REACTORS USING FRAPCON 3.4 by Luther Hallman Jr. Bachelor of Science Furman University, 2007 Submitted in Partial Fulfillment of the Requirements For the Degree of Master of Science in

The gas-turbine modular helium reactor - ResearchGate

The GT-MHR (Gas Turbine Modular Helium Reactor), being developed by General Atomic (GA), couples a HTGR contained in one pressure vessel with a high efficiency Brayton cycle gas turbine system in ...

The Gen IV Modular Helium Reactor - IEEE

The Gen IV Modular Helium Reactor …and its Potential for Small and Medium Grids by David E. Baldwin, Ph.D. presented to Society of Nuclear Engineers of Croatia 26 January 2007

Gas turbine modular helium reactor - Howling Pixel

Gas turbine modular helium reactor. The Gas Turbine Modular Helium Reactor (GT-MHR) is a nuclear fission power reactor design that was under development by a group of Russian enterprises (OKBM Afrikantov, Kurchatov Institute, VNIINM and others), an American group headed by General Atomics, French Framatome and Japanese Fuji Electric.

High Temperature Gas Reactors - gain.inl.gov

proposed for the Gas Turbine-Modular Helium Reactor (GT-MHR) and similar HTGR plants proposed for the near future. This report pertains to the class of modular reactors with a nominal power rating per unit up to 600 MWe. HTGRs are categorized as Generation IV reactors, characterized by very high temperature operation, and

Pebble-bed reactor - Wikipedia

The pebble-bed reactor (PBR) is a design for a graphite-moderated, gas-cooled nuclear reactor. It is a type of very-high-temperature reactor (VHTR), one of the six classes of nuclear reactors in the Generation IV initiative. The basic design of pebble-bed reactors features spherical fuel …