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In order to provide more grid space for the renewable energy power, the traditional coal-fired power unit should be operated flexibility, especially achieved the
A coordinated control scheme for the thermal power unit with flywheel energy storage array is proposed. Flexible electric power control for coal-fired units by incorporating feedwater bypass IEEE Access, 7 (2019), pp. 91225-91233 CrossRef View in
The results show that the round-trip efficiency of the compressed air energy storage system coupled with the coal-fired power unit can reach more than 70% under different working conditions, and the return on investment and payback period are optimistic.
DOI: 10.1016/j.est.2023.109204 Corpus ID: 264075944 Design and analysis of a novel liquefied air energy storage system coupled with coal-fired power unit @article{Shi2023DesignAA, title={Design and analysis of a novel liquefied air energy storage system coupled with coal-fired power unit}, author={Xingping Shi and Qing He
Although coal-fired power plant has been coupled with thermal energy storage to enhance their operational flexibility, studies on retrofitting coal-fired power
Faced with the requirements of high coal-fired unit-operation flexibility, we developed a coal-fired power generation thermal system with additional compressed S–CO 2 energy-storage cycle, which benefits from the respective advantages of
DOI: 10.1016/j.energy.2023.128239 Corpus ID: 259636172 Simulation and evaluation of flexible enhancement of thermal power unit coupled with flywheel energy storage array @article{Yang2023SimulationAE, title={Simulation and evaluation of flexible enhancement
DOI: 10.1016/j.applthermaleng.2023.120850 Corpus ID: 258943272 Improved coordinated control strategy of coal-fired power units with coupled heat storage based on supercritical carbon dioxide cycle @article{Wang2023ImprovedCC, title={Improved coordinated
In this paper, a novel pumped thermal electricity storage system coupled with a supercritical coal-fired power plant is designed based on cascade heat storage. The thermodynamic analysis shows that the round-trip efficiency of the integrated system can reach 0.53–0.56 under 60–100% output load, for a practical design with a recuperation
With the same stored thermal energy to heat the bypassed feed water of 308.65 t/h, the power output can be increased to 394.2 MW from 360.07 MW (60% rated load) at the same sensible heat storage
An S-CO 2 energy-storage cycle system is added to a 660 MW coal-fired power unit to increase operational flexibility. With a round-trip efficiency ( RTE ) of
Improved coordinated control strategy of coal-fired power units with coupled heat storage based on supercritical carbon dioxide cycle Appl. Therm. Eng., 230 ( 2023 ), Article 120850 View PDF View article View in Scopus Google Scholar
An S–CO 2 energy-storage cycle system is added to a 660 MW coal-fired power unit to increase operational flexibility. With a round-trip efficiency ( RTE) of 56.14%, a thermodynamic system for coal-fired units (with an additional S–CO2 energy-storage cycle) is built. Turbine extraction steam was used as energy source for the
A benchmark model is taken as the basic reference sub-critical coal-fired power plant without CO 2 capture based on the model developed by the U.S. Department of Energy/National Energy Technology Laboratory (DOE/NETL), as described in Exhibit 3–15 of their Cost and Performance Baseline for Fossil Energy Plants report [43]..
Thermal storage is coupled with coal-fired power plant for grid energy storage. The coupled plant has higher efficiency than the original one at low load. • Investment is greatly reduced using existing facilities of coal-fired power plant. • Levelized cost of electricity shows advantage with storage period less than 10 h.
Shi and others published Design and analysis of a novel liquefied air energy storage system coupled with coal-fired system coupled with coal-fired power unit December 2023 Journal of Energy
Request PDF | On Apr 1, 2024, Xingping Shi and others published Thermodynamic and techno-economic analysis of a novel compressed air energy storage system coupled with coal-fired power unit | Find
The intermittent and random nature of renewable energy sources poses a major challenge to the stability and reliability of the power grid [2]. In order to save energy and protect the environment
Based on the need of participation of energy storage systems in peak shaving to support renewable. energy sources, the paper put forward and designed a system that combines thermal power unit with
The thermodynamic model of a novel liquified air energy storage system is established with a 307 MW coal-fired power unit as the coupling object. And the
Coupled energy storage can improve flexibility levels, increase renewable energy consumption, and alleviate the energy crisis of thermal power systems. In this article, 11 coupling schemes for the CAES and CFPP systems are proposed, and a mathematical model for the coupled system is established.
This paper proposed a novel coal-fired power generation system coupled with S-CO2 energy storage cycle, and accordingly established its thermodynamic model
Integrating artificial intelligence with numerical simulations of Cattaneo-Christov heat flux on thermosolutal convection of nano-enhanced phase change materials in Bézier-annulus. Hillal M. Elshehabey, Abdelraheem M. Aly, Sang-Wook Lee, Andaç Batur Çolak.
An experimental investigation on thermal energy storage characteristics of nanocomposite particles dispersed phase change material for solar photovoltaic module cooling. Prabhu B, Valan Arasu A, Sandro Nižetić, Müslüm Arıcı. Article 109221.
Energy storage technologies offer a viable solution to provide better flexibility against load fluctuations and reduce the carbon footprint of coal-fired power
With the rapid development of new energy power plants (NPPs) in China, installation of energy storage facilities (ESFs) and flexibility improvement of conventional coal-fired power plants (CPPs) are encouraged
Thermodynamic and techno-economic analysis of a novel compressed air energy storage system coupled with coal-fired power unit
A flexible retrofitting method for thermal-energy-storage-coupled thermal power units is proposed. The exergy flow Sankey diagram and efficiency of the three charging methods was analyzed in detail, and comparative data were provided. The new thermal energy storage mode coupled with steam ejectors was the optimal
A combined coal-fired power plant and liquid CO 2 energy storage system is proposed. Integrated scheme design, thermodynamic and parametric analyses are performed. • ESE of LCES system reaches 55.04 % after integrated with CFPP and improves by 8.04 %.
Semantic Scholar extracted view of "A Thermodynamic System of Coal-Fired Power Unit Coupled S-Co2 Energy-Storage Cycle" by Li-hua Cao et al. DOI: 10.2139/ssrn.4050408 Corpus ID: 247281421 A Thermodynamic System of Coal-Fired Power Unit Coupled S
An S–CO2 energy-storage cycle system is added to a 660 MW coal-fired power unit to increase operational flexibility. With a round-trip efficiency (RTE) of 56.14%, a thermodynamic system
Integrating a high proportion of intermittent renewable energy provides a solution for the higher peak-shaving capacity of coal-fired power plants. Oxy-fuel combustion is one of the most promising carbon reduction technologies for coal-fired power plants. This study has proposed a novel oxy-fuel power plant that is coupled with both
DOI: 10.1016/j.energy.2024.130591 Corpus ID: 267516201 Thermodynamic and techno-economic analysis of a novel compressed air energy storage system coupled with coal-fired power unit @article{Shi2024ThermodynamicAT, title={Thermodynamic and techno
Thermodynamic and techno-economic analysis of a novel compressed air energy storage system coupled with coal-fired power unit. Xingping Shi, Qing He, +3 authors. D. Du.
The thermal energy storage system utilizing high-pressure turbine extraction sCO 2 as the heat source can enhance the flexibility of coal-fired units. By storing heat at the 30 % rated load, the output power can be further reduced to 10.47 %, lower than the steam unit using TES, which means more flexibility [ 15, 17 ].
Section snippets Coal-fired power plant The CFPP studied in the work is a 660 MW ultra-supercritical once-through reheat coal-fired unit, with its main parameters shown in Table 1. The reheating system is equipped with three high-pressure heaters, a deaerator, and
The results show that the round-trip efficiency of the compressed air energy storage system coupled with the coal-fired power unit can reach more than 70% under different working conditions, and the return on investment and payback period are optimistic.
In this paper, a new integrated system of coal-fired CHP unit with compressed air energy storage (CAES) system is studied, which can greatly adjust the heat-power ratio. During heat enhanced period (increasing heat-power ratio), CAES stores electric energy and makes the compression heat supply to the users.
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