Imperial College London
Alternate

ProfessorChristosMarkides

Faculty of Engineering, Department of Chemical Engineering

Professor of Clean Energy Technologies
 
 
 
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Contact

 

+44 (0)20 7594 1601c.markides Website

 
 
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Location

 

404ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Zhu:2022:10.1016/j.enconman.2022.115503,
author = {Zhu, S and Yu, G and Jiang, C and Wang, T and Zhang, L and Wu, Z and Hu, J and Markides, CN and Luo, E},
doi = {10.1016/j.enconman.2022.115503},
journal = {Energy Conversion and Management},
pages = {115503--115503},
title = {A novel thermoacoustically-driven liquid metal magnetohydrodynamic generator for future space power applications},
url = {http://dx.doi.org/10.1016/j.enconman.2022.115503},
volume = {258},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The generation of electricity in space is a major issue for space exploration, and among the viable alternatives, nuclear power systems appear to present a particularly suitable solution, especially for deep space exploration. Recent developments in thermoacoustic engine and liquid metal magnetohydrodynamic (LMMHD) generator technologies have shown that thermoacoustically-driven LMMHD generators are a promising thermal-to-electrical converter option for space nuclear reactors. In order to improve the power density and capacity of current thermoacoustically-driven LMMHD generators, a novel three-stage looped thermoacoustically-driven LMMHD generator is proposed and investigated in this work. A numerical model of the integrated system including a lumped parameter sub-model for the LMMHD generator is developed and validated. Using this model, the effect of key geometric and operating parameters on the operation and performance of the proposed system are investigated numerically, and acoustic field distributions are presented. The results indicate that when the heat source and sink temperatures are 900K and 300K, respectively, a thermal-to-electric efficiency of 27.7% with a total electric power of 4750W can be obtained at a load factor of 0.92. This work provides guidance for the design of similar systems and contributes to the development of a new thermal-to-electrical conversion technology for space applications.
AU  - Zhu,S
AU  - Yu,G
AU  - Jiang,C
AU  - Wang,T
AU  - Zhang,L
AU  - Wu,Z
AU  - Hu,J
AU  - Markides,CN
AU  - Luo,E
DO  - 10.1016/j.enconman.2022.115503
EP  - 115503
PY  - 2022///
SN  - 0196-8904
SP  - 115503
TI  - A novel thermoacoustically-driven liquid metal magnetohydrodynamic generator for future space power applications
T2  - Energy Conversion and Management
UR  - http://dx.doi.org/10.1016/j.enconman.2022.115503
UR  - https://www.sciencedirect.com/science/article/pii/S0196890422002990?via%3Dihub
UR  - http://hdl.handle.net/10044/1/96010
VL  - 258
ER  -
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