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Compressed air energy storage in coal-fired power plants

Thermodynamic Evaluation and Sensitivity Analysis of a Novel

A novel compressed air energy storage (CAES) system has been developed, which is innovatively integrated with a coal-fired power plant based on its feedwater heating

Study on the thermodynamic performance of a coupled compressed air

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.

Thermodynamic and techno-economic analysis of a novel compressed air

Semantic Scholar extracted view of "Thermodynamic and techno-economic analysis of a novel compressed air energy storage system coupled with coal-fired power unit" by Xingping Shi et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar''s Logo. Search 222,569,590 papers from all fields of science. Search. Sign In Create

Increasing Coal-Fired Power Plant Operational Flexibility by

Keywords: solar thermal, compressed air energy storage, coal-fired power plant, thermal energy storage, operation flexibility, ancillary service 1. Introduction The global greenhouse gas (GHG) emissions rise by years due to increased demand for energy. China has agreed to achieve carbon peaking in 2030 and carbon neutrality in 2060 [1]. The

An Advanced Compressed Air Energy Storage System Integrated with a Coal

In order to enhance the energy storage efficiency of the off-peak electricity provided by the grid, an advanced concept for the integration of the coal power unit and the compressed air energy storage (CAES) system has been put forward. According to the principle of energy cascade utilization, the heat energy released from the charging process

Thermodynamic analysis of a combined heating and power plant

Retrofitting coal-fired power plants for grid energy storage by coupling with thermal energy storage. Appl. Therm. Eng., 215 (2022), Article 119048. View PDF View article View in Scopus Google Scholar [18] Baigong Wang, Huan Ma, Shaojun Ren, Fengqi Si. Effects of integration mode of the MS heat storage system and its hot storage temperature on the

Performance analysis of a compressed air energy storage

A novel compressed air storage system that integrates into the regenerative subsystem of coal-fired power plant is proposed. The mathematical model is established, and the possible coupling schemes are discussed. Furthermore, analyses of thermodynamics, purchased-equipment costs and key parameters are carried out. The results show

Performance analysis of a compressed air energy storage

Currently, among numerous electric energy storage technologies, pumped storage [7] and compressed air energy storage (CAES) [8] have garnered significantly wide attention for their high storage capacity and large power rating. Among them, CAES is known as a prospective EES technology due to its exceptional reliability, short construction period, minimal

Study on the thermodynamic performance of a coupled

Coal-fired power plants (CFPPs), when integrated with a molten salt thermal energy storage system, exhibit enhanced flexibility and peak-shaving capabilities to align with

Study on the thermodynamic performance of a coupled

Coupled energy storage can improve flexibility levels, increase renewable energy consumption, and alleviate the energy crisis of thermal power systems. In this article,

Study on the thermodynamic performance of a coupled compressed air

Abstract: 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.

Thermodynamic Evaluation and Sensitivity Analysis of a Novel Compressed

A novel compressed air energy storage (CAES) system has been developed, which is innovatively integrated with a coal-fired power plant based on its feedwater heating system. In the hybrid design, the compression heat of the CAES system is transferred to the feedwater of the coal power plant, and the compressed air before the expanders is heated

Performance analysis of a compressed air energy storage

To improve the energy efficiency and economic performance of the compressed air energy storage system, this study proposes a design for integrating a compressed air energy storage system with a biomass power generation system. In the energy storage process, the feedwater from the biomass power generation system is used to cool the compressed

Increasing Coal-Fired Power Plant Operational Flexibility by

展开更多 This paper proposed a novel integrated system with solar energy,thermal energy storage (TES),coal-fired power plant (CFPP),and compressed air energy storage

Study on the thermodynamic performance of a coupled

Abstract: Coupled energy storage can improve flexibility levels, increase renewable energy consumption, and alleviate the energy crisis of thermal power systems. In

Performance analysis of a compressed air energy storage system

Compressed air energy storage is considered to be a potential large-scale energy storage technology because of its merits of low cost and long design life. Coupling with coal-fired power plant is an attractive way for its competitiveness improvement. A novel compressed air storage system that integrates into the regenerative subsystem of coal-fired power plant is proposed.

Performance analysis of a compressed air energy storage

To improve the energy efficiency and economic performance of the compressed air energy storage system, this study proposes a design for integrating a compressed air

Increasing Coal-Fired Power Plant Operational Flexibility by

This paper proposed a novel integrated system with solar energy, thermal energy storage (TES), coal-fired power plant (CFPP), and compressed air energy storage (CAES) system to improve the operational flexibility of the CFPP. A portion of the solar energy is adopted for preheating the boiler''s feedwater, and another portion is stored in the

An Advanced Compressed Air Energy Storage System Integrated

In order to enhance the energy storage efficiency of the off-peak electricity provided by the grid, an advanced concept for the integration of the coal power unit and the compressed air energy

Study on the thermodynamic performance of a coupled compressed air

Coal-fired power plants (CFPPs), when integrated with a molten salt thermal energy storage system, exhibit enhanced flexibility and peak-shaving capabilities to align with the burgeoning requirements of the renewable energy consumption grid. The focal challenge within this technical paradigm lies in the design of efficacious and

Thermodynamic Evaluation and Sensitivity Analysis of a Novel Compressed

A novel compressed air energy storage (CAES) system has been developed, which is innovatively integrated with a coal-fired power plant based on its feedwater heating system. In the hybrid design

Increasing Coal-Fired Power Plant Operational Flexibility by

展开更多 This paper proposed a novel integrated system with solar energy,thermal energy storage (TES),coal-fired power plant (CFPP),and compressed air energy storage (CAES)system to improve the operational flexibility of the CFPP.A portion of the solar energy is adopted for preheating the boiler''s feedwater,and another portion is stored in the TES f...

Performance Analysis of a Coal-Fired External Combustion Compressed Air

Compressed air energy storage (CAES) is one of the large-scale energy storage technologies utilized to provide effective power peak load shaving. In this paper, a coal-fired external combustion CAES, which only uses coal as fuel, is proposed.

Integrating compressed CO2 energy storage in an oxy-coal

For large-scale energy storage, compressed air energy storage (CAES) represents a promising technology building a new oxy-coal power plant with energy storage. The LCOE and related economic parameters for building a new oxy-coal plant with energy storage are reported in Table 4. Compared with the Oxy_ref, although the Oxy_O 2 and the

Compressed air energy storage in coal-fired power plants [PDF]

6 FAQs about [Compressed air energy storage in coal-fired power plants]

Can compressed air energy storage system be integrated into coal-fired power plant?

Compressed air energy storage system is integrated into coal-fired power plant. The possible system coupling schemes were discussed. Thermodynamic performance assessment of the proposed system was analysed. The purchased-equipment costs and parametric sensibility analysis were implemented.

How does compressed air affect a coal power plant?

The compressed air releases heat to the feedwater drawn from the coal power plant, which results in a decrement of 0.09 kg/s in the coal consumption rate, while the net power production of the coal power plant is invariable.

How does a coal power plant use exergy?

During the charging period, the coal power plant absorbs 6.31 MWh exergy from the compressed air out of the COMs, and then 8.71 MWh exergy is transferred from the coal power plant to the air into the EXPs when discharging. The exhaust air of the EXP2 is exploited to heat a portion of the feedwater, and 0.47 MWh exergy can be avoided from wasting.

Is compressed air energy storage a potential large-scale energy storage technology?

Thermodynamic performance assessment of the proposed system was analysed. The purchased-equipment costs and parametric sensibility analysis were implemented. Compressed air energy storage is considered to be a potential large-scale energy storage technology because of its merits of low cost and long design life.

How efficient is compressed air energy storage?

In the energy analysis, the results indicate that with the system integration, the compressed air energy storage subsystem achieves a round-trip efficiency of 84.90 %, while an energy storage density of 15.91 MJ/m 3. Furthermore, the proposed system demonstrates an overall efficiency of 39.98 %.

How can A CAES system improve the performance of a coal power plant?

Furthermore, the exhaust air of the expanders is employed to warm partial feedwater of the coal power plant. Via the suggested integration, the thermal energy storage equipment for a regular CAES system can be eliminated and the performance of the CAES system can be improved.

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