How does a steam ejector work?
This work introduces a steam ejector to couple the TES and the thermal power unit (TPSE) by extracting main steam and reheating steam for thermal storage during low periods. The high and low-pressure inlets of the steam ejector are the main steam and reheat steam after the heat exchange.
Are steam ejectors useful for solar energy storage?
For more information on the journal statistics, click here. Multiple requests from the same IP address are counted as one view. Steam ejectors are important energy-saving equipment for solar thermal energy storage; however, a numerical simulation research method has not been agreed upon.
Does a steam ejector increase exergy efficiency?
A optimized steam ejector could increase the exergy efficiency by 6.1% of a cogeneration system . And after the system integration, the peak load regulating capacity could increase by 94.80 MW for a 330 MW unit . Steam ejectors are also highly compatible with various cogeneration technologies.
Can steam ejectors improve a cogeneration system?
Steam ejectors also can improve both the thermodynamic performance and flexibility of cogeneration systems. A optimized steam ejector could increase the exergy efficiency by 6.1% of a cogeneration system . And after the system integration, the peak load regulating capacity could increase by 94.80 MW for a 330 MW unit .
Can steam ejector improve waste heat recovery rate?
Zhang et al. studied a thermoelectric system with a 2 × 350 MW thermal power unit coupled with a steam ejector and used the main steam induced discharge steam to provide the heat source to improve the waste heat recovery rate by 8.66 %.
Can a steam ejector be integrated into a coal-fired cogeneration system?
Under the challenge of global energy transition, coal-fired cogeneration systems are undergoing a technical revolution towards enhanced efficiency, heating capacity, and flexibility. In this paper, four schemes using a steam ejector integrated into a cogeneration system are designed.
Thermodynamic Comparison of the Steam Ejectors
Under the challenge of global energy transition, coal-fired cogeneration systems are undergoing a technical revolution towards enhanced efficiency, heating capacity, and flexibility. In this paper, four schemes using a steam
Design and Performance Analysis of Thermal Power Coupled
In this research paper, a deep peaking-regulation system is proposed for a thermal power unit, coupled with thermal energy storage and integrated with a steam e
Enhancing steam pressure ejector efficiency through numerical
Yanxing Zhang, a PhD student at Northeastern University, focuses on numerical simulation and performance optimization of steam ejector systems, thermal-fluid processes, and industrial
Integrated steam accumulator and ejector for low load industrial
This study proposes a novel approach that uses an SA to store high-pressure steam during a flat load period and uses a steam ejector to blend the stored steam with low-pressure extraction
Performance and economic analysis of steam extraction for
This study considers options for upgrading a -MWel nuclear power plant with the addition of a thermal energy storage system and secondary power generators.
Non-Condensation Turbulence Models with
This study contributes to a comprehensive selection of turbulence models, near-wall treatments, geometrical modeling (2-D and 3-D), solvers, and models (condensation and ideal-gas) in the RANS equations approach for
Thermodynamic analysis of ternary coupled system based on
We first analyzed the feasibility of the operation of the CSC system. Then we evaluated the advantages of the proposed method compared with the basic method from the perspective of
Thermodynamic analysis of the coal-fired combined heat and
The integration of steam ejectors and thermal storage substantially impacts the energy efficiency of CHP plants. Thus, energy efficiency is evaluated for conventional and modified CHP
Performance and economic analysis of steam extraction for energy
A new thermal power unit peaking system coupled with thermal energy storage and steam ejector was proposed, which is proved to be technically and economically feasible based on the
Performance and economic analysis of steam extraction for energy
A new thermal power unit peaking system coupled with thermal energy storage and steam ejector was proposed, which is proved to be technically and economically feasible based on the
Non-Condensation Turbulence Models with
Steam ejectors are important energy-saving equipment for solar thermal energy storage; however, a numerical simulation research method has not been agreed upon. This study contributes to a
Thermodynamic analysis of a combined heating and power plant
In face of the increasing penetration of renewable energy, compressed air energy storage (CAES) is promising in improving the flexibility of the conventional coal-fired
Integrated steam accumulator and ejector for low load industrial steam
The increasing penetration of renewable energy and fluctuating power demand have imposed significant challenges on combined heat and power units, particularly in maintaining a stable
Thermodynamic analysis of ternary coupled system based on
Semantic Scholar extracted view of "Thermodynamic analysis of ternary coupled system based on combined heating and power unit, steam ejector and compressed carbon dioxide energy
Thermodynamic analysis of the coal-fired combined heat and
The results show that the ejector extracting the steam from the reheater shows better peak-shaving capacity and higher energy efficiency than the schemes extracting steam
Performance analysis of a novel liquid carbon dioxide energy storage
Performance analysis of a novel liquid carbon dioxide energy storage system improved by the ejector and the solar energy for combined heat and power
Steam accumulator: ThermalBattery™ in
Steam is a key energy carrier in industrial processes, but fluctuating demand puts strain on steam generators, reduces efficiency, and increases maintenance needs—steam storage systems help balance
Multi-objective optimization for a combined heat and power unit
Steam ejectors are also used in conjunction with thermal energy storage to further improve flexibility and efficiency in CHP units. Compared with reheater extraction,
Design and Performance Analysis of Thermal Power Coupled Thermal Energy
In this research paper, a deep peaking-regulation system is proposed for a thermal power unit, coupled with thermal energy storage and integrated with a steam ejector.
Design and performance evaluation of thermal energy storage
Design and performance evaluation of thermal energy storage system with hybrid heat sources integrated within a coal-fired power plant
Thermodynamic analysis of the coal-fired combined heat and
The results show that the ejector extracting the steam from the reheater shows better peak-shaving capacity and higher energy efficiency than the schemes extracting steam from high
Multi-objective optimization for a combined heat and power unit
Steam ejectors are also used in conjunction with thermal energy storage to further improve flexibility and efficiency in CHP units. Compared with reheater extraction,
Thermodynamic analysis of the coal-fired combined heat and
The results show that the ejector extracting the steam from the reheater shows better peak-shaving capacity and higher energy efficiency than the schemes extracting steam from high
Thermodynamic Comparison of the Steam Ejectors
Under the challenge of global energy transition, coal-fired cogeneration systems are undergoing a technical revolution towards enhanced efficiency, heating capacity, and flexibility. In this paper, four
Thermodynamic optimization of coal-fired combined heat and
Therefore, the integration in steam ejectors may achieve heat–power decoupling and energy saving simultaneously in CHP units. Several heat–power decoupling systems
Latent Heat and Cold Storage in a Solar-Driven Steam Jet Ejector
This paper presents a plant concept of a solar-driven steam jet ejector chiller with latent heat and cold storage. The concept will be realized in a first demonstration plant. The
Study on evolution law of non-equilibrium phase transition flow
The steam ejector has a superior ability to recover low-grade thermal energy and improve energy efficiency, and a broader array of industrial application thus follows. However,
Design and Performance Analysis of Thermal Power Coupled Thermal Energy
In this research paper, a deep peaking-regulation system is proposed for a thermal power unit, coupled with thermal energy storage and integrated with a steam ejector. The peak load
Thermodynamic analysis of the coal-fired combined heat and
摘要： Four flexibility improvement CHP schemes with steam ejectors and thermal storage are proposed.The peak shaving capacity, energy efficiency, and exergy efficiency of the various
Performance and economic analysis of steam extraction for energy
Semantic Scholar extracted view of "Performance and economic analysis of steam extraction for energy storage to molten salt with coupled ejector and thermal power
Thermodynamic analysis of a typical compressed air energy storage
To solve the problem of energy loss caused by the use of conventional ejector with fixed geometry parameters when releasing energy under sliding pressure conditions in
Performance and economic analysis of steam extraction for energy
A new thermal power unit peaking system coupled with thermal energy storage and steam ejector was proposed, which is proved to be technically and economically feasible based on the
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