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research-article

Power Cycle Assessment of Nuclear Systems, Providing Energy Storage for Low Carbon Grids

[+] Author and Article Information
Nima Fathi

Department of Mechanical Engineering, University of New Mexico, Albuquerque, NM 87131
nfathi@unm.edu

Patrick McDaniel

Department of Nuclear Engineering, University of New Mexico, Albuquerque, NM 87131
mcdanielpk@aol.com

Charles Forsberg

Nuclear Science & Engineering Department, Massachusetts Institute of Technology, Cambridge, MA 02139
cforsber@mit.edu

Cassiano de Oliveira

Department of Nuclear Engineering, University of New Mexico, Albuquerque, NM 87131
cassiano@unm.edu

1Corresponding author.

ASME doi:10.1115/1.4037806 History: Received October 16, 2016; Revised August 24, 2017

Abstract

The intermittency of renewable power generation systems on the low carbon electric grid can be alleviated by using nuclear systems as quasi-storage systems. Nuclear Air-Brayton systems can produce and store hydrogen when electric generation is abundant and then burn the hydrogen by Co-Firing when generation is limited. The rated output of a nuclear plant can be significantly augmented by Co-Firing. The incremental hydrogen to electricity efficiency can far exceed that of hydrogen in a stand-alone gas turbine. Herein we simulate and evaluate this idea on a 50 MW small modular liquid metal/molten salt reactor. Considerable power increases are predicted for Nuclear Air-Brayton systems by Co-Firing with hydrogen before the power turbine.

Copyright (c) 2017 by ASME
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