The performance of very high temperature reactor plants with direct and indirect closed Brayton cycles (CBCs) is compared and the effects of the molecular weight of the CBC working fluid on the number of stages and sizes of the axial flow, single shaft compressor and turbine are investigated. The working fluids considered are helium (4 g/mole), He–Xe, and binary mixtures (15 g/mole). Also investigated are the effects of using low and high pressure compressors with intercooling, instead of a single compressor, and changing the reactor exit temperature from to on the plant thermal efficiency, the CBC pressure ratio, and the number of stages in and size of the turbomachines. For plants with direct CBCs, the effect of cooling the reactor pressure vessel with He bled off at the exit of the compressor is also investigated. The present analyses are performed for a reactor thermal power of 600 MW, shaft rotation speed of 3000 rpm, and intermediate heat exchanger temperature pinch of .
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March 2010
Research Papers
On the Performance of Very High Temperature Reactor Plants With Direct and Indirect Closed Brayton Cycles
Mohamed S. El-Genk,
Mohamed S. El-Genk
Institute for Space and Nuclear Power Studies and Department of Chemical and Nuclear Engineering,
University of New Mexico
, Albuquerque, NM 87131
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Jean-Michel Tournier
Jean-Michel Tournier
Institute for Space and Nuclear Power Studies and Department of Chemical and Nuclear Engineering,
University of New Mexico
, Albuquerque, NM 87131
Search for other works by this author on:
Mohamed S. El-Genk
Institute for Space and Nuclear Power Studies and Department of Chemical and Nuclear Engineering,
University of New Mexico
, Albuquerque, NM 87131
Jean-Michel Tournier
Institute for Space and Nuclear Power Studies and Department of Chemical and Nuclear Engineering,
University of New Mexico
, Albuquerque, NM 87131J. Eng. Gas Turbines Power. Mar 2010, 132(3): 032902 (7 pages)
Published Online: November 24, 2009
Article history
Revised:
October 27, 2008
Received:
October 27, 2008
Online:
November 24, 2009
Published:
November 24, 2009
Citation
El-Genk, M. S., and Tournier, J. (November 24, 2009). "On the Performance of Very High Temperature Reactor Plants With Direct and Indirect Closed Brayton Cycles." ASME. J. Eng. Gas Turbines Power. March 2010; 132(3): 032902. https://doi.org/10.1115/1.3126264
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