A Review of World-wide Advanced Pumped Storage Hydropower Technologies

Zhao, Jingfeng; Oh, Ungjin; Park, Joo-Chang; Park, Eun Seong; Im, Hyeong-Bin; Lee, Kwang Y.; Choi, Jaeseok

doi:10.1016/j.ifacol.2022.07.030

Cited by 17 publications

(10 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[61] At present, the primary method of grid-connected energy storage, with a 96 % share of the total storage capacity worldwide, is pumped hydropower. [62] Of the remaining share, lithium-ion batteries is the most popular. [61] Due to the demand for other EES options, the cost of aqueous flow battery installation has been the subject of several techno-economic analyses, and the cost is a common criticism of current state-ofthe-art RFB technology, generally referring to the vanadium RFB specifically.…”

Section: Costmentioning

confidence: 99%

“…The applications of flexible EES installation include frequency regulation, peak shaving and arbitrage, and black start support [61] . At present, the primary method of grid‐connected energy storage, with a 96 % share of the total storage capacity worldwide, is pumped hydropower [62] . Of the remaining share, lithium‐ion batteries is the most popular [61] .…”

Section: Key Properties Of Aqueous Organic Rfb Electrolytesmentioning

confidence: 99%

See 1 more Smart Citation

Aqueous Redox Flow Batteries: Small Organic Molecules for the Positive Electrolyte Species

et al. 2023

View full text Add to dashboard Cite

There are a number of critical requirements for electrolytes in aqueous redox flow batteries. This paper reviews organic molecules that have been used as the redox-active electrolyte for the positive cell reaction in aqueous redox flow batteries. These organic compounds are centred around different organic redox-active moieties such as the aminoxyl radical (TEMPO and N-hydroxyphthalimide), carbonyl (quinones and biphenols), amine (e. g., indigo carmine), ether and thioether (e. g., thianthrene) groups. We consider the key metrics that can be used to assess their performance: redox potential, operating pH, solubility, redox kinetics, diffusivity, stability, and cost. We develop a new figure of merit -the theoretical intrinsic power density -which combines the first four of the aforementioned metrics to allow ranking of different redox couples on just one side of the battery. The organic electrolytes show theoretical intrinsic power densities which are 2-100 times larger than that of the VO 2 + /VO 2 + couple, with TEMPO-derivatives showing the highest performance. Finally, we survey organic positive electrolytes in the literature on the basis of their redox-active moieties and the aforementioned figure of merit.

show abstract

Section: Costmentioning

confidence: 99%

Section: Key Properties Of Aqueous Organic Rfb Electrolytesmentioning

confidence: 99%

Aqueous Redox Flow Batteries: Small Organic Molecules for the Positive Electrolyte Species

et al. 2023

View full text Add to dashboard Cite

show abstract

“…There is therefore an urgent need for a green and clean energy source to come in and reduce the consumption of fossil energy [3][4]. Pumped storage technology is a new technology for efficient power generation and stable operation [5][6][7]. As the core component of pumped storage technology, the hydraulic turbine plays a crucial role.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the prototype performance of Wanjiazhai Francis turbine with flow pattern analysis

Liu,

Lu,

Luan

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Multiple Francis turbines are installed in Wanjiazhai water conservancy project to generate electricity, and the operating conditions of the units vary greatly. Because the unit head itself is not high, and the parameters such as head, flow and output vary widely, the operation of the unit becomes very complex. Aiming at this problem, this study predicts and analyzes different typical operating conditions during the operation of the unit, and compares them with the field measured results. The analysis of Prototype unit helps us understand the actual flow state inside the unit and observe the possible complex flow phenomenon. Therefore, the distribution of vortices inside the unit is analyzed in depth, and the flow structures inside the volute, stay vane, guide vane, runner and draft tube are compared to serve the safe and stable operation.

show abstract

“…In the aftermath of the energy crisis, pumped storage technology has alleviated the need for energy shortage to some extent. With 130 years of development since its inception, pumped storage technology has become the most successful energy storage technology especially for hydro and marine power within modern power storage systems due to its mature technology and huge scale [2,3]. Pumped storage power stations are an important part of the power grid as they play a major role in peak and valley regulation, frequency and phase regulation, and so on.…”

Section: Introductionmentioning

confidence: 99%

Exploring the Mechanism of Strong-Pressure Fluctuation under Partial Load in the Turbine Mode of Pump Turbines for Hydro and Marine Power Storage

Yan¹,

Tao

Wang

et al. 2023

JMSE

View full text Add to dashboard Cite

As a core component of pumped storage power plants for hydro and marine power storage, this paper investigates the mechanism of pressure pulsation fluctuations under different load conditions to improve the efficiency and operational stability of the storage units. The results of a combination of experiments and numerical simulations showed that the pressure pulsation fluctuations in the pump turbine under strong and weak loads were significantly different at different monitoring points. The three-dimensional flow lines diagram of the pump turbine unit from the CFD numerical simulation showed that the flow line of the pump turbine was relatively chaotic and the vortex existed under weak load conditions. Pressure clouds and flow lines in the cross-section and longitudinal section of the pump turbine are shown. Both showed high-pressure values and a chaotic flow line with a vortex under weak load conditions. To a certain extent, it revealed the pressure pulsation fluctuation mechanism of the pump turbine and provides some guidance for solving practical problems in engineering.

show abstract

A Review of World-wide Advanced Pumped Storage Hydropower Technologies

Cited by 17 publications

References 5 publications

Aqueous Redox Flow Batteries: Small Organic Molecules for the Positive Electrolyte Species

Aqueous Redox Flow Batteries: Small Organic Molecules for the Positive Electrolyte Species

Evaluation of the prototype performance of Wanjiazhai Francis turbine with flow pattern analysis

Exploring the Mechanism of Strong-Pressure Fluctuation under Partial Load in the Turbine Mode of Pump Turbines for Hydro and Marine Power Storage

Contact Info

Product

Resources

About