Prediction of the time constant of small-scale concentrated solar CHP plants

Desideri, U., Tascioni, Roberto, Pirro, Matteo, Arteconi, Alessia, Del Zotto, Luca, Bartolini, Carlo M., Mahkamov, Khamid, Makhkamova, Irina, Cabeza, Luisa F., De Gracia, Alvaro, Pili, Piero, Mintsa, André C., Gimbernat, Toni, Botargues, Teresa, Mullen, David, Cioccolanti, Luca, Ferrari, L. and Yan, J. (2021) Prediction of the time constant of small-scale concentrated solar CHP plants. E3S Web of Conferences, 238. 01001. ISSN 2267-1242

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The operation of a power plant based on solar energy can vary significantly with time because of the intrinsic intermittency of the energy resource. Hence, a smart management is required to deal with the complex dynamic variations of the different subsystems. In order to do that, different control logics can be implemented but their effectiveness strictly depends on the temporal evolution of the parameters considered. For a given plant configuration, their exact estimation can be obtained through experimental tests during the commissioning of the plant. However, any change in the design parameters of the plant reflects in a different time constant, whose preliminary knowledge may be of support in tuning the control logic of the plant during the design stage. Therefore, based on the configuration of a small-scale concentrated solar combined heat and power plant as designed and built under the EU funded project Innova MicroSolar by several universities and companies, in this study a prediction of the time constant of several plant configurations with varying solar multiple and size of the storage tank is performed. By making use of the dynamic simulator previously developed by some of the authors, an estimation of such characteristic is assessed in case of potential redesign of the plant, providing also useful suggestions into the design of the control logic.

Item Type: Article
Additional Information: Funding information: This study is a part of the Innova MicroSolar Project, funded in the framework of the European Union’s Horizon 2020 Research and Innovation Programme (grant agreement No 723596). Conference: 2020 Applied Energy Symposium (ICAE), 100RES 2020, Pisa, Italy, 29-30 Oct 2020
Subjects: H800 Chemical, Process and Energy Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: John Coen
Date Deposited: 12 Jan 2022 15:32
Last Modified: 12 Jan 2022 15:45

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