Numerical study of the performance of all vanadium redox flow battery by changing the cell structure

Sun, Zhicheng; Duan, Z.N.; Bai, Junqiang; Wang, Y.

doi:10.1016/j.est.2020.101370

Cited by 17 publications

(7 citation statements)

References 31 publications

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“…The size of VRFB in the VPP, considering the available budget and the optimum use of the battery, was chosen to be 700 kWh, 350 kW. The VRFB is electrochemical energy storage in which energy is stored in a liquid vanadium electrolyte and is based on a reversible chemical reaction [37]. The liquid is pumped between two tanks whose sizes determine the size of the VRFB.…”

Section: The Concept Design Of the Proposed Vppmentioning

confidence: 99%

Advanced Monitoring and Control System for Virtual Power Plants for Enabling Customer Engagement and Market Participation

et al. 2021

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To integrate large-scale renewable energy into energy systems, an effective participation from private investors and active customer engagement are essential. Virtual power plants (VPPs) are a very promising approach. To realize this engagement, an efficient monitoring and control system needs to be implemented for the VPP to be flexible, scalable, secure, and cost-effective. In this paper, a realistic VPP in Western Australia is studied, comprising 67 dwellings, including a 810 kW rooftop solar photovoltaic (PV) system, a 700 kWh vanadium redox flow battery (VRFB), a heat pump hot water system (HWS), an electric vehicle (EV) charging station, and demand management mechanisms. The practical and detailed concept design of the monitoring and control system for EEBUS-enabled appliances, and also for the PV and VRFB system, with smart inverters, is proposed. In addition, a practical fog-based storage and computing system is developed to enable the VPP owner to manage the PV, VRFB, and EV charging station for maximizing the benefit to the customers and the VPP owner. Further, the proposed cloud-based applications enable customers to participate in gamified demand response programs for increasing the level of their engagement while satisfying their comfort level. All proposed systems and architecture in this paper have the capability of being implemented fully and relevant references for practical devices are given where necessary.

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Section: The Concept Design Of the Proposed Vppmentioning

confidence: 99%

Advanced Monitoring and Control System for Virtual Power Plants for Enabling Customer Engagement and Market Participation

et al. 2021

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“…The use of energy storage will improve the integration of renewable energy as it provides an opportunity for storing the energy and exporting when needed [23]. VRFB is an electrochemical energy storage which is based on a reversible chemical reaction within a sealed electrolyte, in which energy is stored in a liquid vanadium electrolyte, a mixture of distilled water, vanadium salts, and sulfuric acid [24]. The liquid that carries energy will be pumped between two tanks through electrochemical cells.…”

Section: Vanadium Redox Flow Battery (Vrfb)mentioning

confidence: 99%

“…In this formulation, x y,h is the VRFB power at the h-th hour and the y-th year for which the positive and negative signs represent charging and discharging, respectively. minimize 24 h=1 HourPrice y,h , ∀y…”

Section: Battery Managementmentioning

confidence: 99%

Cost–Benefit Analysis of a Virtual Power Plant Including Solar PV, Flow Battery, Heat Pump, and Demand Management: A Western Australian Case Study

et al. 2020

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Achieving the renewable energy integration target will require the extensive engagement of consumers and the private sector in investment and operation of renewable-based energy systems. Virtual power plants are an efficient way to implement this engagement. In this paper, the detailed costs and benefits of implementing a realistic virtual power plant (VPP) in Western Australia, comprising 67 dwellings, are calculated. The VPP is designed to integrate and coordinate rooftop solar photovoltaic panels (PV), vanadium redox flow batteries (VRFB), heat pump hot water systems (HWSs), and demand management mechanisms. An 810-kW rooftop solar PV system is designed and located using the HelioScope software. The charging and the discharging of a 700-kWh VRFB are scheduled for everyday use over a year using an optimization algorithm, to maximize the benefit of it for the VPP owners and for the residents. The use of heat pump HWSs provides a unique opportunity for the residents to save energy and reduce the total cost of electricity along with demand management on some appliances. The cost-and-benefit analysis shows that the cost of energy will be reduced by 24% per dwelling in the context of the VPP. Moreover, the internal rate of return for the VPP owner is at least 11% with a payback period of about 8.5 years, which is a promising financial outcome.

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“…It was generally accepted that the optimizations of mass transfer on the flow battery performance were mainly reflected in the flow field design. 16,17 Sun et al 18 developed a new VRFB design by changing the relative position of the electrode and flow field, which can decrease the internal ionic resistance and increase the effective area of the ion-exchange membrane. Sharma et al 19 curve and electrochemical impedance spectroscopy (EIS).…”

Section: Introductionmentioning

confidence: 99%

“…It was generally accepted that the optimizations of mass transfer on the flow battery performance were mainly reflected in the flow field design. , Sun et al developed a new VRFB design by changing the relative position of the electrode and flow field, which can decrease the internal ionic resistance and increase the effective area of the ion-exchange membrane. Sharma et al reported a sinusoidal wave-type serpentine (SWS) flow field and concluded that SWS could improve battery energy efficiency and achieve more uniform electrolyte distribution with less pump loss based on the polarization curve and electrochemical impedance spectroscopy (EIS).…”

Section: Introductionmentioning

confidence: 99%

Novel Interdigitated Flow Field with a Separated Inlet and Outlet for the Vanadium Redox Flow Battery

Chu,

Liu,

Shen

et al. 2023

Energy Fuels

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The vanadium redox flow battery (VRFB) is considered as a promising energy storage technology to solve the environmental problems of global warming. The optimizations should be carried out before the large-scale commercialization of the VRFB, and the flow field greatly affects the battery performance. In the paper, a two-sides interdigitated flow field (IFF) is designed for improving the mass transfer behaviors, and a three-dimensional numerical model is established to predict the charge–discharge process of the VRFB. The charge–discharge voltage, overpotential, concentration distribution, and uniformity factors are analyzed to evaluate the battery performance of different flow field designs (case 1, the conventional IFF; case 2, the two-sided IFF; and case 3, the two-sided IFF with a high contacting area). In comparison to cases 1 and 2, the VRFB with the case 3 design possesses the highest discharge voltage and the lowest charge voltage. For the distribution uniformity factor of V2+, case 2 is 5.5% higher than case 1 and case 3 is 17% higher than case 1. The two-sided IFF outputs the highest net power. Furthermore, case 3 can acquire 85.6% system efficiency, while the efficiency of case 1 is 84.5%, which shows that the two-sided IFF is more suitable for the large-scale VRFB.

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Numerical study of the performance of all vanadium redox flow battery by changing the cell structure

Cited by 17 publications

References 31 publications

Advanced Monitoring and Control System for Virtual Power Plants for Enabling Customer Engagement and Market Participation

Advanced Monitoring and Control System for Virtual Power Plants for Enabling Customer Engagement and Market Participation

Cost–Benefit Analysis of a Virtual Power Plant Including Solar PV, Flow Battery, Heat Pump, and Demand Management: A Western Australian Case Study

Novel Interdigitated Flow Field with a Separated Inlet and Outlet for the Vanadium Redox Flow Battery

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