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System dynamics of oxyfuel power plants with liquid oxygen energy storage

Hu, Y; Tewari, A; Varga, L; Li, H; Yan, J; (2017) System dynamics of oxyfuel power plants with liquid oxygen energy storage. In: Yan, J and Wu, J and Li, H, (eds.) Procedia: Proceedings of the 9th International Conference on Applied Energy (ICAE 2017). (pp. pp. 3727-3733). Elsevier: New York, USA. Green open access

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Abstract

Traditional energy storage systems have a common feature: the generating of secondary energy (e.g. electricity) and regenerating of stored energy (e.g. gravitational potential, and mechanical energy) are separate rather than deeply integrated. Such systems have to tolerate the energy loss caused by the second conversion from primary energy to secondary energy. This paper is concerned with the system dynamics of oxyfuel power plants with liquid oxygen energy storage, which integrates the generation of secondary energy (electricity) and regeneration of stored energy into one process and therefore avoids the energy loss caused by the independent process of regeneration of stored energy. The liquid oxygen storage and the power load of the air separation unit are self-adaptively controlled based on current-day power demand, day-ahead electricity price and real-time oxygen storage information. Such an oxyfuel power plant cannot only bid in the day-ahead market with base load power but also has potential to provide peak load power through reducing the load of the air separation unit in peak time. By introducing reasoning rules with fuzzy control, the oxygen storage system has potential to be further extended by integrating renewable energy resources into the system to create a cryogenic energy storage hub.

Type: Proceedings paper
Title: System dynamics of oxyfuel power plants with liquid oxygen energy storage
Event: 9th International Conference on Applied Energy (ICAE 2017), 21-24 August 2017, Cardiff, UK
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.egypro.2017.12.268
Publisher version: https://doi.org/10.1016/j.egypro.2017.12.268
Language: English
Additional information: Copyright © 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Keywords: oxyfuel power plant, oxygen storage, system dynamics, load distribution, AnyLogic
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10066210
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