释放LiOH的力量:下一代超紧型热能储能系统的关键
F Achchaq1,2, S-C Moon3, P Legros4
1University of Bordeaux, CNRS, Bordeaux INP, I2M, UMR 5295, F-33400 Talence, France.
Heliyon
|August 2, 2024
概括
氧化 (LiOH) 作为热能存储的稳定相变材料具有前景,其体积能量密度是传统太阳能盐的六倍. 这一突破使得更紧,更高效的储能解决方案成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 可再生能源可再生能源是可再生能源.
背景情况:
- 热能储存对于可再生能源的整合至关重要.
- 现有的相变材料在能量密度和稳定性方面存在局限性.
- 由于泄漏问题,氧化 (LiOH) 在热能存储方面基本上尚未被探索.
研究的目的:
- 研究氧化 (LiOH) 作为热能存储的稳定相变材料.
- 克服与LiOH泄漏相关的挑战,并评估其热循环稳定性.
- 通过实验来描述LiOH的热特性,并评估其用于储能应用的潜力.
主要方法:
- 实验室规模的实验涉及LiOH的热循环.
- 验证固态到液态过渡温度和热量.
- 热容量,热导率和热扩散率的实验性表征.
- 用传统的太阳能盐系统对体积能量密度进行比较分析.
主要成果:
- 成功地证明了LiOH的稳定热循环超过500个周期没有分解,克服了泄漏问题.
- 实验确定了LiOH的热特性,揭示了与现有文献相矛盾的值.
- 与太阳盐相比,确定了与太阳盐相比体积能量密度的潜在六倍增长 (4.5 GJ/m3对比0.76 GJ/m3).
- 在加热过程中观察到软化现象,这可能解释了它的融化行为.
结论:
- 氧化 (LiOH) 是一种可行且有前途的超紧相变材料,用于储存热能.
- 氧化提供了显著更高的储能能力,可能弥合下一代太阳能发电厂的缺口.
- 需要进一步的研究,以确保大规模应用的经济可行性.
更多相关视频
11:25Identification and Quantification of Decomposition Mechanisms in Lithium-Ion Batteries; Input to Heat Flow Simulation for Modeling Thermal Runaway
Published on: March 7, 2022
4.5K
10:36Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption
Published on: November 3, 2023
1.5K
相关概念视频
01:26Thermal and Photochemical Electrocyclic Reactions: Overview
2.3K
Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
2.3K
02:42Aqueous Solutions and Heats of Hydration
14.6K
Water and other polar molecules are attracted to ions. The electrostatic attraction between an ion and a molecule with a dipole is called an ion-dipole attraction. These attractions play an important role in the dissolution of ionic compounds in water.
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...
14.6K