| 摘要 |
A first coolant gas in contact with the core ( 5 ) of the high temperature nuclear reactor ( 1 ) is circulated in a closed circuit, a second heat-exchange gas is heated by heat-exchange with the first exchange gas or coolant gas and the second heat-exchange gas heated by the first coolant gas is used in an intermediate exchanger ( 7 ) to drive at least one gas turbine ( 2 ) coupled to an electric generator ( 4 ). The first exchange gas consists mainly of helium and the second exchange gas contains substantially 50 to 70% by volume of helium and 50 to 30% by volume of nitrogen. The second heat-exchange gas is circulated in a closed circuit so that the second heat-exchange gas at least drives the at least one gas turbine ( 2 ). Preferably, the device also comprises a tertiary circuit ( 10 ) in which there circulates water and steam formed by heating water from a fraction of the second exchange fluid and used to drive steam turbines ( 3 a, 3 b, 3 c) preferably mounted on the shaft of the electric generator ( 4 ).
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