Asymmetric phenomenon of flow and heat transfer in charging process of thermal energy storage based on an entire domain model

Ying, Xuchen; Huang, Weijia; Liu, Wenhua; Liu, Guiliang; Li, Jun; Yang, Mo

doi:10.1016/j.apenergy.2022.119122

Cited by 8 publications

(2 citation statements)

References 43 publications

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“…A better understanding of the nonlinearity, e.g., asymmetric phenomenon, in a system is critical to both preventing nonlinear influence (when system stability is needed) and elevating engineering nonlinearity (when system performance is desired) (Yang, 2018;Sciamanna and Shore, 2015;Ying et al, 2022). Li et al (2019 numerically investigated the heat and mass transfer in a horizontal cavity.…”

Section: Introductionmentioning

confidence: 99%

Asymmetric Phenomenon of Flickering Flame Under Different Co-Flow Velocities

Liu¹,

Yang²,

Zhang³

et al. 2023

Front. Heat Mass Transf.

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In this study, numerical investigations are performed on a partially premixed flame of methane and air in two-and three-dimensional models. Nonlinear method is adopted to illustrate the asymmetric phenomenon that affects the flame stability under various co-flow velocities. According to the results, the mathematical relationship between the flame flickering frequency Stanton number and the dimensionless velocity Froude number has been summarized as St=0.7Fr -0.46 . The bifurcation phenomena under different Reynold numbers are found to have significant influence on the system stability. Two critical bifurcation points, which is when Re=300 and Re=1200, are determined as the onset of breaking the flame symmetry and the onset of chaotic state, respectively. The research on flame flicker characteristics provides valuable reference for engineering applications in stable combustion and other related fields.

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Section: Introductionmentioning

confidence: 99%

Asymmetric Phenomenon of Flickering Flame Under Different Co-Flow Velocities

Liu¹,

Yang²,

Zhang³

et al. 2023

Front. Heat Mass Transf.

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“…Despite current efforts to improve LFP and other active materials' performance, studies assessing the environmental impact associated with the production of these compounds are very scarce and have been limited to studying batteries' assembly or recycling and reuse [15,16]. Other authors have focused on designing novel ways to extract raw materials such as Li 2 CO 3 and LiOH, which are commonly used in cathode materials' synthesis, developing more efficient and environmentally friendly methodologies than those used from brine or spodumene ore [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Life Cycle Analysis of a Green Solvothermal Synthesis of LFP Nanoplates for Enhanced LIBs in Chile

et al. 2023

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Despite the structural and electrochemical advantages of LiFePO4 (LFP) as a cathode material, the solid-state reaction commonly used as a method to produce it at the industrial level has known disadvantages associated with high energy and fossil fuel consumption. On the other hand, solution-based synthesis methods present a more efficient way to produce LFP and have advantages such as controlled crystal growth, homogeneous morphology, and better control of pollutant emissions because the reaction occurs within a closed system. From an environmental point of view, different impacts associated with each synthesis method have not been studied extensively. The use of less polluting precursors during synthesis, as well as efficient use of energy and water, can provide new insights into the advantages of each cathode material for more environmentally friendly batteries. In this work, a solvothermal method is compared to a solid-state synthesis method commonly used to elaborate LFPs at the commercial level in order to evaluate differences in the environmental impacts of both processes. The solvothermal method used was developed considering the reutilization of solvent, water reflux, and a low thermal treatment to reduce pollutant emissions. As a result, a single high crystallinity olivine phase LFP was successfully synthesized. The use of ethylene glycol (EG) as a reaction medium enabled the formation of crystalline LFP at a low temperature (600 °C) with a nano-plate-like shape. The developed synthesis method was evaluated using life cycle analysis (LCA) to compare its environmental impact against the conventional production method. LCA demonstrated that the alternative green synthesis process represents 60% and 45% of the Resource Depletion impact category (water and fossil fuels, respectively) of the conventional method. At the same time, in the Climate change and Particular matter impact categories, the values correspond to 49 and 38% of the conventional method, respectively.

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Ceramic nanoparticles enhancement of latent heat thermal energy storage properties for LiNO3/NaCl: Evaluation from material to system level

Luo

Liu

et al. 2023

Applied Energy

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Asymmetric phenomenon of flow and heat transfer in charging process of thermal energy storage based on an entire domain model

Cited by 8 publications

References 43 publications

Asymmetric Phenomenon of Flickering Flame Under Different Co-Flow Velocities

Asymmetric Phenomenon of Flickering Flame Under Different Co-Flow Velocities

Life Cycle Analysis of a Green Solvothermal Synthesis of LFP Nanoplates for Enhanced LIBs in Chile

Ceramic nanoparticles enhancement of latent heat thermal energy storage properties for LiNO3/NaCl: Evaluation from material to system level

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