Opening Hour
Mon - Fri, 8:00 - 9:00
Call Us
Email Us
MENU
Home
About Us
Products
Contact Us
steam ejector energy storage
Performance and economic analysis of steam extraction for energy
Thermo-economic optimization of the thermal energy storage system extracting heat from the reheat steam for coal-fired power plants. Kezhen Zhang Ming Liu Yongliang Zhao Shunqi Zhang Hui Yan Jun Yan
Integration model and performance analysis of coupled thermal energy
Request PDF | On Oct 1, 2023, Xiang Liu and others published Integration model and performance analysis of coupled thermal energy storage and ejector flexibility retrofit for 600 MW thermal power
Solar Ejector Cooling Technologies | SpringerLink
This is necessary to supply thermal energy to the steam generator at a predefined temperature. Heat exchangers are usually used to transfer the heat from the hot storage tank to ejector generator and transfer cooling energy from cold storage tank to air handling unit [12, 13].
Study of combined heat and power plant integration with thermal energy
DOI: 10.1016/j.applthermaleng.2022.119537 Corpus ID: 253137680; Study of combined heat and power plant integration with thermal energy storage for operational flexibility @article{Chen2022StudyOC, title={Study of combined heat and power plant integration with thermal energy storage for operational flexibility}, author={Cheng-Lung
Performance and economic analysis of steam extraction for energy
For load-following operation, extensive dynamic simulation study is conducted and the simulation results show that the extracted exhaust gas can be used
Integration model and performance analysis of coupled thermal energy
Storage of electrical energy is a key technology for a future climate‐neutral energy supply with volatile photovoltaic and wind generation. Besides the well‐known technologies of pumped hydro
Modeling and thermal economy analysis of the coupled system of
The research object of this paper is the coupling system of compressed steam energy storage and Rankine cycle of thermal power plant. As shown in Fig. 1, the system incorporates a compressed steam cycle as an extension of the existing thermal power cycle, sharing a common steam turbine.During periods of deep peaking operation,
Evaluating and optimizing of steam ejector
Semantic Scholar extracted view of "Evaluating and optimizing of steam ejector performance considering heterogeneous condensation using Machine learning framework" by Amir Momeni Dolatabadi et al. heterogeneous condensation in the de Laval nozzle to guide the compressor performance optimization in a compressed air
Study on evolution laws of two-phase choking flow and
In this study, a visualizable experimental platform of steam ejector oriented towards MED-TVC desalination system is constructed, and the evolution laws of two-phase choking flow and ejector''s entrainment performance under various operating parameters are obtained. Further, a matching double-choking theory with consideration of the
Dynamic simulation of an integrated solar-driven ejector based
The auxiliary heater was only on when the solar energy was not 100% sufficient to drive the steam production in the generator (e.g. during low irradiance hours) for the ejector cycle. Under these conditions, a small hot storage tank is more advantageous, since it reduces the thermal inertia between the energy source and the consumption
Recent advances and future outlook on solar-powered ejector
Solar-driven ejector cooling is a potential alternative for reducing overall energy usage. Hence, a review of solar-driven ejector refrigeration cycles, along with their integration with multi-generation systems, has been conducted, and they are structured into several sections. Initially, the basics of ejector technology, the standard ejector
Design and Performance Analysis of Thermal Power Coupled
This work proposes a novel system of molten salt thermal storage based on multiple heat sources (i.e., high-temperature flue gas and superheated steam)
Design and Performance Analysis of Thermal Power Coupled
Abstract: 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.
Transient exergy analysis of ejector cooling and thermoelectric
The maximum energy storage rate is 1 816 kW between the economic performance of the solar-driven steam ejector refrigeration system is addressed due to the rising beneficial adoption of this
Latent Heat and Cold Storage in a Solar-Driven Steam Jet Ejector
The cooling capacity of the steam jet ejector chiller will be 80 kW at 6 °C chilled water temperature. A latent heat storage unit with polyethylene as phase change material and a latent cold storage unit with a paraffin/water dispersion as phase change slurry store thermal energy in the process. The steam jet ejector chiller and the he
Numerical assessment of steam ejector efficiencies using CFD
Ejector efficiencies for the primary nozzle, suction, mixing and diffuser were determined for the first time, according to their definitions, using an axi-symmetric CFD model. Water was considered as working fluid and the operating conditions were selected in a range that would be suitable for an air-conditioner powered by solar thermal energy.
Energy efficiency and exergy destruction of supersonic steam ejector
Steam ejector. A conventional steam ejector has four sections: primary nozzle, suction cavity, mixing chamber and diffuser. The closed steam ejector refrigeration system is shown in Fig. 1 (a). The pressure energy of high-pressure fluid is transferred into kinetic energy through a primary nozzle.
Comparative analysis on thermodynamic performance of
The new thermal energy storage mode coupled with steam ejectors was the optimal solution, with a significantly higher round-trip efficiency than the published results. Further study of the mode revealed slight temperature variations in the molten salt did not affect system efficiency.
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 dem onstration plant. The solar cooling
Multi-objective optimization and 3E analysis for solar-driven dual
Ejector refrigeration cycles, known for their simplicity, low electrical power requirements, and adaptability to low-temperature heat sources, have become a focal point within heat source-dependent cooling systems [5]. Since solar energy exists for part of the day, attention is paid to energy storage and its use during other hours.
Steam Jet Ejector Performance Using Experimental Tests And
Steam Jet Air Ejector Performance: Basic Behavior of a Typical Ejector Stage; Stages; Engineering Calculations; Condensers; Condenser Drainlegs and Hotwells; Pressure
An efficient solar-aided waste heat recovery system based on steam
Table 5 lists the main parameters of the key equipment of the proposed system. As shown in Table 5, in the steam ejector, a little high-grade steam (8.8 kg/s) produced by solar energy is used to induce the waste steam, producing large amount of drying steam. Off-design performance analysis: keeping output power stably by dried
An efficient solar-aided waste heat recovery system based on steam
In the proposed system, 21.6 MW th of solar energy is used to drive steam ejector, efficiently recovering 46.6 MW th of steam waste heat from WTA dryer. By integrating solar energy into waste heat recovery, the solar energy could be considered to be amplified by 3.2 times in the steam ejector, and converted into the dried coal''s
Evaluating and optimizing of steam ejector
Semantic Scholar extracted view of "Evaluating and optimizing of steam ejector performance considering heterogeneous condensation using Machine learning
Modelling and simulation of steam jet ejectors
The new thermal energy storage mode coupled with steam ejectors was the optimal solution, with a significantly higher round-trip efficiency than the published results. investigates a reversible solid oxide fuel cell system coupled with an external waste heat source for use of electrical energy storage. Steam from waste-fueled boilers
A combined pressure regulation technology with multi
Steam ejector as an energy-saving unit is of critical importance to the overall performance of MED-TVC desalination system. In this study, a combined pressure regulation solution is proposed to dredge the blocked entrained flow and alleviate the high-pressure effect simultaneously for multiple optimization of the entrainment passage flow
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 simulation of a 600 MW thermal power unit.
Techno-economic assessment of an efficient liquid air energy storage
Among large-scale energy storage systems, liquid air energy storage (LAES) is one of a potential choices, storing off-peak electricity or power from renewable energy sources with high energy density in the form of liquid air in an artificial tank, not being dependent on geological attributes. However, this system suffers from low
Performance and economic analysis of steam extraction for energy
Request PDF | On Nov 1, 2023, Xiang Liu and others published Performance and economic analysis of steam extraction for energy storage to molten salt with coupled ejector and thermal power units
Exergy, economic and pinch analyses of a novel
This study aims to investigate an innovative hybrid structure of electricity storage at off-peak hours and its application at on-peak hours. In this paper, a novel hybrid system for energy storage and freshwater production using air compression and liquefaction system, ejector refrigeration cycle (ERC), thermal multi-effect desalination
Dynamic simulation of an integrated solar-driven ejector based
A relatively high COP (0.85) was reported for a pilot scale steam ejector operating at a high generator temperature of 200 With careful design and integration of a thermal energy storage (TES), the performance of the system can be improved. The application of TES can lead to two important benefits. First, it allows for the rationalisation
Performance and economic analysis of steam extraction for energy
DOI: 10.1016/j.est.2023.108488 Corpus ID: 260817662; Performance and economic analysis of steam extraction for energy storage to molten salt with coupled ejector and thermal power units
Performance and economic analysis of steam extraction for energy
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
Reducing energy consumption of a steam ejector through exper
Downloadable (with restrictions)! Steam ejectors use pressurized vapor as the motive flow for running in steam cycles. The major parameter that affects the thermal energy consumption is the pressure of motive flow used in this device. In the current study, a malfunctioning experimental ejector is studied numerically to reveal the source of low
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 simulation of a 600 MW thermal power unit. Results show that the percentage of exergy losses in the retrofitted system is in the order of condenser, turbine and thermal energy
Integration model and performance analysis of coupled thermal
The new thermal energy storage mode coupled with steam ejectors was the optimal solution, with a significantly higher round-trip efficiency than the
