Gas turbine modular helium reactor

In today's world, Gas turbine modular helium reactor has become a topic of utmost importance and relevance in various spheres of life. Both on a personal and professional level, Gas turbine modular helium reactor has generated a great impact and has aroused great interest in the public. There are numerous studies, research and debates surrounding Gas turbine modular helium reactor, demonstrating its importance and the need to understand it in depth. In this article, we will explore different aspects related to Gas turbine modular helium reactor, analyzing its influence on current society and its possible evolution in the future. In addition, we will reflect on the possible implications and consequences of Gas turbine modular helium reactor in our daily lives, as well as in the development of various industries and sectors.

The Gas Turbine Modular Helium Reactor (GT-MHR) is a class of nuclear fission power reactor designed 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. It is a helium cooled, graphite moderated reactor and uses TRISO fuel compacts in a prismatic core design. The power is generated via a gas turbine rather than via the more common steam turbine.

A conceptual design was produced by 1997, and it was hoped to have a final design by 2005, and a prototype plant commissioning by 2010.

Construction

The core consists of a graphite cylinder with a radius of 4 metres (13 ft) and a height of 10 metres (33 ft) which includes 1 metre (3 ft 3 in) axial reflectors at top and bottom. The cylinder allocates three or four concentric rings, each of 36 hexagonal blocks with an interstitial gap of 0.2 centimetres (0.079 in). Each hexagonal block contains 108 helium coolant channels and 216 fuel pins. Each fuel pin contains a random lattice of TRISO particles dispersed into a graphite matrix. The reactor exhibits a thermal spectrum with a peak neutron energy located at about 0.2 eV. The TRISO fuel concept allows the reactor to be inherently safe. The reactor and containment structure is located below grade and in contact with the ground, which serves as a passive safety measure to conduct heat away from the reactor in the event of a coolant failure.

Advantages

The Gas Turbine Modular Helium Reactor utilizes the Brayton cycle turbine arrangement, which gives it an efficiency of up to 48% – higher than any other reactor, as of 1995. Commercial light water reactors (LWRs) generally use the Rankine cycle, which is what coal-fired power plants use. Commercial LWRs average 32% efficiency, again as of 1995.

Legacy

Energy Multiplier Module (EM2)

In 2010 General Atomics conceptualized a new reactor that utilizes the power conversion features of the GT-MHR, the Energy Multiplier Module (EM2). The EM2 uses fast neutrons and is a gas-cooled fast reactor, enabling it to reduce nuclear waste considerably by transmutation.

See also

References

  1. ^ a b c "GT-MHR PROJECT" (PDF). IAEA. Retrieved 2018-02-16.
  2. ^ Labar, Malcomb P. "The Gas Turbine Modular Helium Reactor: A promising option for near term deployment" San Diego, CA; General Atomics Presentation; 2002
  3. ^ The Fifty Percent Efficiency Nuclear Power Plant Archived April 8, 2008, at the Wayback Machine
  4. ^ "Energy Multiplier Module (EM²)". Ga.com. Retrieved 2013-09-05.

External links

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