Abstract

Abstract The progress in the technology of conventional power plants with gas, steam and combined cycles suggests investigating to what extent such technology can be applied to power conversion systems for high-temperature reactors (HTR). HTR power conversion systems with steam cycle, offer the possibility of achieving steam parameters equivalent to those of currently constructed or planned conventional plants of similar high efficiency. Gas turbine and combined cycles also offer interesting prospects for obtaining high efficiency. This study, which is restricted to thermodynamic aspects, investigates the potential for increased efficiency in HTR module plants with 200 MWth. Steam and gas turbine cycles, with and without intermediate heat exchangers, and combined gas turbine/steam cycles, with and without intermediate heat exchangers, are investigated.

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