EPJ Web Conf.
Volume 201, 2019The XXII International Scientific Conference of Young Scientists and Specialists (AYSS-2018)
|Number of page(s)||5|
|Published online||04 February 2019|
Exergy Analysis of Liquid Nitrogen Power Cycles
Wroclaw University of Science and Technology, Department of Cryogenic, Aeronautic and Process Engineering, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland
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Published online: 4 February 2019
Nitrogen is by-product from cryogenic air separation processes used for oxygen production for metallurgy and oxygen-enriched combustion purposes. If the gases are delivered from air separation unit (ASU) in liquid phase, liquid nitrogen (LN2) can be used as energy accumulator for stabilization of electrical grid system with large share of renewable energy sources. When the energy demand is high and not enough electricity is generated in power plants, energy accumulated in LN2 may be recovered in a cryogenic power cycle. In this research complete exergy analysis of liquid nitrogen direct expansion cycle and combined direct expansion/Brayton cycle was performed.
© The Authors, published by EDP Sciences, 2018
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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