GT-MHR

Strizak, J.P., Effects of oxidation on the strength of C/C composites for GT-MHR control rods. In Proceedings of 22nd Biennial Conf. on Carbon Pub. American Carbon Society, 1995, pp 760-761. 

The reactor for the MHR-T RP is designed on the basis of the GT-MHR reactor concept. The main reactor equipment is arranged in a vertical vessel located parallel to the power conversion unit and high-temperature heat exchanger vessels in a separate cavity. 

Kostin, V.I., N.G. Kodochigov, A.V. Vasyae, et a1. (2006), GT-MHR Project as Advanced Nuclear Technology for Combined Production of Hydrogen and Electric Energy , Nuclear Power Bulletin,... 

Implementation of the GT-MHR-HTES at the temperature of 850°C for the near term appears possible, while achieving temperatures of 950°C and higher might be expected for the years 2025 and beyond. Similarly, for the S-AGR-HTES, the near-term and far-term goals may be 650°C... 

Most of the operating data for the PH-MHR are the same as for the GT-MHR. GT-MHR has a capacity of 1.145 MWe. The electricity-equivalent size of the 4-unit plant is adjusted to reflect the lower efficiency of the PH-MHR a 2.400 MWth plant operating at 42% efficiency would have an electric-equivalent rating of 1.008 MWe. 

The S-I hydrogen facility was optimised for a heat source of 2.857 MWth. Because the 4-module MHR produces only 2.400 MWth, the facility size and costs are reduced linearly by 16%. Fuel costs are the same for the PH-MHR and the GT-MHR, but because of the lower electric-equivalent output, fuel costs per MWh-equivalent are higher for the PH-MHR. 

Table 5. Nth-of-a-Kind total construction cost for 4-unit GT-MHR and PH-MHR (M )...

As can be seen from Table 6, the projected cost of electricity for the GT-MHR is about 31/MWh. Tliis cost can be compared to tlie projected cost of electricity from an Advanced Combustion Turbine (Combined Cycle Gas Turbine, CCGT) [16, Table 38]. (The analysis in this section follows [17].)... 

The GT-MHR - 600 MW(th) concept of a direct cycle HTGR is a joint development by the US General Atomics and Russia s Minatom starting in 1995 and since 1997 supported by the French Framatome and Fuji Electric, Japan. It is planned to be built as modules of 250 - 285 MW(e) each with a prismatic core for commercial electricity generation and, in particular, for the burning of weapon-grade plutonium. A prototype and a plutonium... 

A follow-up design is given in the GT-MHR (Modular Helium Reactor) (see also section 4.7.2.) with a higher power output of 600 MW(th). A standard plant is planned consisting of four of those units. Helium inlet/outlet temperatures are 485 and 850 °C, respectively. The cycle efficiency is predicted to be 47 % [51]. Follow-on evaluations which need to be done include the study of transient response of plant components to normal and off-normal events, impact of turbine contamination, and confirmation of plant efficiency [47]. 

NEYLAN, A.J., SIMON, W.A., Status of the GT-MHR, (3rd JAERI Symp., Oarai, 1996), Proc. JAERI-Conf 96-010, Japan Atomic Energy Research Institute (1996) 89-96. 

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