Cristina Zotică, Lars O. Nord, Jenö Kovács, Sigurd Skogestad, Optimal operation and control of heat to power cycles: A new perspective from a systematic plantwide control approach, Computers & Chemical Engineering, Volume 141, 2020, 106995, ISSN 0098-1354, https://doi.org/10.1016/j.compchemeng.2020.106995
Optimal operation and control of heat to power cycles : a new perspective from a systematic plantwide control approach
|Author:||Zotică, Cristina1; Nord, Lars O.2; Kovács, Jenö3;|
1Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, 7491, Norway
2Department of Energy and Process Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, 7491, Norway
3Intelligent Machines and Systems Research Unit, University of Oulu, Oulu, POB4300, Finland
|Online Access:||PDF Full Text (PDF, 1.5 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2020100983547
|Publish Date:|| 2020-10-09
In this work, we use a plantwide control framework to systematically identify the control objectives, operational and environmental constraints, and degrees of freedom for a heat to power cycle with a drum, one pressure level and with power as the only valuable product. After controlling the active constraints and the unstable inventories, we are left with the fuel (MV1) as the only degree of freedom with a significant steady-state effect. However, the steam valve (MV2) can be used as a dynamic degree of freedom, to improve the response in transient operation while its steady-state effect is negligible. The result is an unified and systematic perspective on the optimal control operation problems for heat-to-power cycles.
Computers & chemical engineering
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
213 Electronic, automation and communications engineering, electronics
215 Chemical engineering
This work is partly funded by HighEFF - Centre for an En- ergy Efficient and Competitive Industry for the Future. The au-thors gratefully acknowledge the financial support from the Research Council of Norway and user partners of HighEFF, an 8 year Research Centre under the FME-scheme (Centre for Environment- friendly Energy Research, 257632).
©2020TheAuthors.PublishedbyElsevierLtd.ThisisanopenaccessarticleundertheCCBYlicense.( http://creativecommons.org/licenses/by/4.0/ ).