Please use this identifier to cite or link to this item:
http://bura.brunel.ac.uk/handle/2438/25692
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Marchionni, M | - |
dc.contributor.author | Usman, M | - |
dc.contributor.author | Chai, L | - |
dc.contributor.author | Tassou, SA | - |
dc.date.accessioned | 2023-01-03T10:08:27Z | - |
dc.date.available | 2023-01-03T10:08:27Z | - |
dc.date.issued | 2022-12-26 | - |
dc.identifier | ORCID iD: Matteo Marchionni https://orcid.org/0000-0002-8049-5407 | - |
dc.identifier | ORCID iD: Muhammad Usman https://orcid.org/0000-0001-9605-2654 | - |
dc.identifier | ORCID iD: Lei Chai https://orcid.org/0000-0002-1293-0833 | - |
dc.identifier | ORCID iD: Savvas A. Tassou https://orcid.org/0000-0003-2781-8171 | - |
dc.identifier | 126537 | - |
dc.identifier.citation | Marchionni, M. et al. (2023) 'Inventory control assessment for small scale sCO2 heat to power conversion systems', Energy, 267, 126537, pp. 1 - 15. doi: 10.1016/j.energy.2022.126537. | en_US |
dc.identifier.issn | 0360-5442 | - |
dc.identifier.uri | https://bura.brunel.ac.uk/handle/2438/25692 | - |
dc.description | Data availability statement: Data related to the paper and other information relating to the paper can be obtained by contacting the corresponding author. | en_US |
dc.description.abstract | The control of the main cycle parameters in supercritical CO2 (sCO2) systems during off-design and transient operation is crucial for advancing their technological readiness level. In smaller scale power units (<0.5–5 MW), costs and complexity constraints limit the number of auxiliary components in the power loop, making the design of the control system even more challenging. Among the possible strategies, the regulation of system inventory, which consists in varying the CO2 fluid mass in the power loop to achieve a given control target, represents a promising alternative. Such technique however poses several technical challenges that are still to be fully understood. To fill this gap, this work presents a comprehensive steady-state and transient analysis of inventory control systems, referring in particular to a 50 kW sCO2 test facility being commissioned at Brunel University. Stability implications (e.g. pressure gradients in the loop) and the effects of variable inventory tank size are discussed. Tank volumes 3 times higher than the one of the power loop (including the receiver) can lead to a higher controllability range (±30% of the nominal turbine inlet temperature) and an extended availability of the control action (slower tank discharge). A PI controller is also designed to regulate the turbine inlet temperature around the target of 465 °C in response to waste heat variations. | en_US |
dc.description.sponsorship | European Union's Horizon 2020 research and innovation program under grant agreement No. 680599 for the I-ThERM project; EPSRC Grant No. EP/P004636 for the OPTEMIN project and Grant No, EP/V001795/1 for the SCOTWAHR project. | en_US |
dc.format.extent | 1 - 15 | - |
dc.format.medium | Print-Electronic | - |
dc.language | English | - |
dc.language.iso | en_US | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Copyright © The Authors 2023. Published by Elsevier Ltd. under a Creative Commons license (https://creativecommons.org/licenses/by/4.0/). | - |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.subject | supercritical CO2 power cycles | en_US |
dc.subject | waste heat recovery | en_US |
dc.subject | inventory control | en_US |
dc.subject | transient analysis | en_US |
dc.subject | sCO2 power cycle controls | en_US |
dc.subject | control design | en_US |
dc.title | Inventory control assessment for small scale sCO2 heat to power conversion systems | en_US |
dc.title.alternative | Inventory control assessment for small scale sCO<inf>2</inf> heat to power conversion systems | - |
dc.type | Article | en_US |
dc.date.dateAccepted | 2022-12-22 | - |
dc.identifier.doi | https://doi.org/10.1016/j.energy.2022.126537 | - |
dc.relation.isPartOf | Energy | - |
pubs.publication-status | Published | - |
pubs.volume | 267 | - |
dc.identifier.eissn | 1873-6785 | - |
dc.rights.license | https://creativecommons.org/licenses/by/4.0/legalcode.en | - |
dc.rights.holder | The Authors | - |
Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers Institute of Energy Futures |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
FullText.pdf | Copyright © 2023 The Authors. Published by Elsevier Ltd. under a Creative Commons license (https://creativecommons.org/licenses/by/4.0/). | 4.76 MB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License