A power plant for integrated waste energy recovery from liquid air energy storage and liquefied natural gas

Zhang, Tongtong; She, Xiaohui; Ding, Yulong

doi:10.1016/j.cjche.2021.02.008

Cited by 12 publications

(3 citation statements)

References 34 publications

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“…DR resources can optimize the output plans of units with different carbon emission intensities by changing the load curve (Zhang et al, 2021), thereby achieving the effect of reducing system carbon emissions. The low-carbon principle of price-based demand response is shown in Figure 5.…”

Section: Frontiers In Energy Researchmentioning

confidence: 99%

Low-carbon optimal operation of the integrated energy system considering integrated demand response and oxygen-rich combustion capture technology

Ji,

Li,

et al. 2024

Front. Energy Res.

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In view of the current operating constraints and environmental pollution problems of traditional units, in this article, oxygen-rich combustion capture technology is introduced to transform gas-fired units, demand response technology is used on the load side, the energy conversion equipment such as power-to-gas equipment is combined to form an integrated energy system, and then, a low-carbon optimization approach of the integrated energy system is proposed. First, the system architecture is constructed, and a model with an oxygen-rich combustion unit and integrated demand response is established. Second, a power-to-gas equipment model considering reaction waste heat utilization and oxygen recovery is established. Finally, a stepped carbon trading mechanism is introduced to establish a low-carbon economic scheduling model for the integrated energy system with the goal of minimizing the operating cost of the integrated energy system. The simulation results show that the total cost and carbon emissions of the integrated energy system are reduced by 6.44% and 44.24%, respectively, under this model. At the same time, the operation adjustment capability and the oxygen production efficiency of the internal units of the system are improved.

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Section: Frontiers In Energy Researchmentioning

confidence: 99%

Low-carbon optimal operation of the integrated energy system considering integrated demand response and oxygen-rich combustion capture technology

Ji,

Li,

et al. 2024

Front. Energy Res.

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“…The working modes of the three sub-categories of LNG cold energy utilisation and their energy and exergy efficiencies are listed in table 7. Additionally, the LNG cold energy can also be used as a heat sink for the integrated LAES-ORC or LAES-Brayton cycles to enhance the total output power and overall efficiency [159,160].…”

Section: Integrated Laes Systems 421 Laes Integration With An Externa...mentioning

confidence: 99%

Liquid air energy storage technology: a comprehensive review of research, development and deployment

Liang

Zhang²,

Lin³

et al. 2023

Prog. Energy

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Liquid air energy storage (LAES) uses air as both the storage medium and working fluid, it falls into the broad category of thermo-mechanical energy storage technologies. Such a technology offers several advantages including high energy density and scalability, cost-competitiveness and non-geographical constraints, and hence has attracted a growing interest in recent years. As a result, several reviews have been published on the topic. However, these reviews covered little in the following aspects of LAES: dynamic simulation and optimisation, key components for LAES, LAES applications through integration, and unified economic model and cost models for LAES. This article provides a comprehensive review on the LAES technology and fills the above gaps. Apart from applications in electrical grids such as peak-shaving, load shifting, and dealing with intermittency of renewable generation, the review also shows a diverse range of other LAES applications through integration, including waste heat and cold energy recovery and utilisation, multi-energy-vector service provision, and sector coupling for chemical production and carbon capture. The review also led to the recommendation of several areas of LAES for future research and development, including dynamic characteristics of whole LAES system integrated with renewables and end users; thermo-economic and dynamic optimization of stand-alone LAES and integrated systems; and experimental study on commercial systems.

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“…Again, in order to fully utilize the compression heat, ref. [8] recommended a nitrogen power plant with a Brayton cycle. Still, the industrial feasibility of the system was not optimistic due to the wide temperature range (from −160 • C to 200 • C).…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic and Economic Analysis of a Liquid Air Energy Storage System with Carbon Capture and Storage for Gas Power Plants

Qin,

Tan,

Wen

et al. 2023

Applied Sciences

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Liquid air energy storage (LAES) technology is helpful for large-scale electrical energy storage (EES), but faces the challenge of insufficient peak power output. To address this issue, this study proposed an efficient and green system integrating LAES, a natural gas power plant (NGPP), and carbon capture. The research explores whether the integration design is theoretically feasible for future adoption in operating the LAES system and NGPP. The effect of the charging pressure, the number of air expansion stages, and electricity prices on the overall thermodynamic and economic characteristics are investigated. The round-trip efficiency and the exergy round-trip efficiency of the proposed system are 47.72% and 69.74%, respectively. The calculations show that the minimum dynamic payback period for such a project is 3.72 years, and the lowest levelized cost of electricity is 0.0802 USD·kWh−1. This work provides a reference for peak-shaving power stations with energy storage and carbon capture.

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A power plant for integrated waste energy recovery from liquid air energy storage and liquefied natural gas

Cited by 12 publications

References 34 publications

Low-carbon optimal operation of the integrated energy system considering integrated demand response and oxygen-rich combustion capture technology

Low-carbon optimal operation of the integrated energy system considering integrated demand response and oxygen-rich combustion capture technology

Liquid air energy storage technology: a comprehensive review of research, development and deployment

Thermodynamic and Economic Analysis of a Liquid Air Energy Storage System with Carbon Capture and Storage for Gas Power Plants

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