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Renewable Energy Powered Membrane Technology: Energy Buffering Control to Reduce Shut‐Down Events and Enhance System Resilience under Different Solar Days

Li, Sheying 1; Voigt, Achim 1; Cai, Yang-Hui ORCID iD icon 2; Schäfer, Andrea I. 2; Richards, Bryce S. ORCID iD icon 1
1 Institut für Mikrostrukturtechnik (IMT), Karlsruher Institut für Technologie (KIT)
2 Institute for Advanced Membrane Technology (IAMT), Karlsruher Institut für Technologie (KIT)

Abstract:

Fluctuating and intermittent solar energy cause shut-down and reduce resilience of photovoltaic powered membrane (PV-membrane) systems. A charge controller based on pre-set voltage thresholds for supercapacitors (SC) is designed and employed on varied solar days to cope with these issues. Several parameters—number of shut-down events (#SD), shut-down duration (tSD) and resilience factor in flux (RFflux)—are quantified. The controller reduces tSD by 37% (partly cloudy) and 12% (very cloudy), and #SD by 2 and 13 events, respectively. During the 90 min fluctuations, tSD is shortened to 1–4.5 min and #SD is reduced by 1–4 events for feed water salinities of ≤7.5 g L−1. Increasing the PV power capacity to 600–1000 W, zero #SD occurs and RFflux rises from 0.3 to 0.8, indicating enhanced system resilience.


Verlagsausgabe §
DOI: 10.5445/IR/1000159959
Veröffentlicht am 29.06.2023
Cover der Publikation
Zugehörige Institution(en) am KIT Institute for Advanced Membrane Technology (IAMT)
Institut für Mikrostrukturtechnik (IMT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2023
Sprache Englisch
Identifikator ISSN: 2366-7486
KITopen-ID: 1000159959
HGF-Programm 12.17.21 (POF IV, LK 01) Membrane materials & processes in water process engineering
Weitere HGF-Programme 38.01.04 (POF IV, LK 01) Modules, Stability, Performance and Specific Applications
Erschienen in Advanced Sustainable Systems
Verlag Wiley-VCH Verlag
Band 7
Heft 7
Seiten Art.Nr.: 2300031
Vorab online veröffentlicht am 16.05.2023
Nachgewiesen in Scopus
Dimensions
Web of Science
Globale Ziele für nachhaltige Entwicklung Ziel 6 – Sauberes Wasser und Sanitär-EinrichtungenZiel 7 – Bezahlbare und saubere Energie
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