Gas turbine modular helium reactor GT-MHR

Dunn, T. D., L. J, Lommers and V. E. Tangirala, Preliminary Safety Evaluation of the Gas Turbine-Modular Helium Reactor (GT-MHR), GA-A21633, Presented at the International Topical Meeting on Advanced Reactor Safety, April 17-21,1994, Pittsburgh, PA, USA. 

F.A. Siiady, A.J. Neylan and W.A. Simon, "Design Status of the Gas Turbine Modular Helium Reactor (GT-MHR)", GA-A21768, GA Project 9866, June 1994. 

General Atomics, 1996, Gas Turbine-Modular Helium Reactor (GT-MHR) Conceptual Design Description Report, General Atomics Report 910720, San Diego, California, Rev. 1, July. 

GAS TURBINE MODULAR HELIUM REACTOR (GT-MHR) POWER PLANT 6.6.1. Basic objectives and features... 

The Gas Turbine - Modular Helium Reactor (GT-MHR) is a power unit for the production of electricity or the co-generation of electricity and process heat. The GT-MHR power unit couples the passively safe Modular Helium Reactor (MHR) with a highly efficient energy conversion system. The energy conversion system is based on an intercooled and recuperated closed Brayton (gas turbine) cycle that has a projected efficiency of approximately 48%. The GT-MHR produces electricity directly with the reactor primary helium coolant driving a gas turbine generator derived from technologies developed in the gas turbine and aerospace industries. 

Design Name Gas Turbine Modular Helium Reactor (GT-MHR)... 

Smaller, modular gas cooled reactors had already been proposed as commercial market entries, the Pebble Bed Modular Reactor (PBMR) [18] and the Gas Turbine-Modular Helium Reactor (GT-MHR) [13]. For the PBMR, Exelon had made a strong case of the inherent advantage of small plants in introducing new power to the grid in limited increments, thus finely tailoring supply and demand and limiting the utilities financial exposure. 

The AHTR reactor core physics, general core design, and fuel cycle are similar to those of the proposed General Atomics Gas-Turbine Modular Helium Reactor (GT-MHR). The low-power-density graphitemoderated core also has the long neutron lifetime, slow kinetics, and thermal neutron spectrum characteristic of the proposed GT-MHR. The molten salt (Fig. 3) flows through the reactor core to an external heat exchanger (to provide the interface for the H2 production system), dumps the heat load, and returns to the reactor core. The molten salt can be circulated by natural or forced circulation. 

The development of a multi-module Gas Turbine - Modular Helium Reactor (GT-MHR) for excess weapons grade plutonium consumption in the Russian Federation in ongoing within an international project that pools together major efforts of the Russian Federation and the USA. The institutions involved in the R D, design and deployment of the plutonium consumption GT-MHR include the following ... 

XV-10] U.S. Pre-application licensing plan for the gas turbine modular helium reactor (GT-MHR), General Atomics February 2001, available from US NRC ADAMS electronic reading room), Accession No. ML0210000209. 

Development of the HTGR with gas turbine is underway in many countries. In specific, the commercial reactor project on Pebble Bed Modular Reactor (PBMR) is underway in South Africa [XVI-ll], The Gas Turbine Modular Helium Reactor (GT-MHR) concept is being developed in cooperation between the United States, Russia and other countries [XVI-12]. Various commercial systems have also been proposed in China [XVI-13] and the Netherlands [XVI-14],... 

Preliminary overnight capital costs (Table XXVI-2) of a 2400 MW(th) AHTR for several exit temperatures were determined relative to other higher temperature reactor concepts [i.e., the S-PRISM and the gas turbine - modular helium reactor (GT-MHR)] based on the relative size of systems and quantities of materials. The economic analysis used the larger size AHTR because the initial studies used the basic S-PRISM facility design where relatively detailed system design and cost information was available. This approach provides relative, but not absolute, costs. Only the construction of multiple reactors can provide reliable absolute costs. The lower capital costs are a consequence of several factors economics of scale [a 2400 MW(th) reactor vs. four 600 or 1000 MW(th) reactors], passive safety in a large reactor system, and higher thermal efficiency. 

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