来自子的活性碳增强水相变材料用于冷热储能
Palanichamy Sundaram1, Anbalagan Sathishkumar1, Jie Liu2
1Department of Mechanical Engineering, SRM Institute of Science and Technology, Tamil Nadu, Kattankulathur, Chennai, 603203, India.
Environmental science and pollution research international
|April 12, 2024
概括
来自子的活性碳增强了用于建筑冷却的水相变换材料. 这改善了热能储存,减少了超冷却,加速了固化,降低了能源使用和二氧化碳排放.
科学领域:
- 材料科学 材料科学 材料科学
- 储能 储能 储能 储能 储能 储能
- 可持续技术 可持续技术
背景情况:
- 建筑冷却系统面临着高峰需求挑战,导致效率低下的运行和能源浪费.
- 水相变材料 (W-PCM) 为负载转移提供热能存储 (TES),但存在相分离,热传递缓慢和超冷.
- 解决这些局限性对于建筑冷却应用中有效的TES至关重要.
研究的目的:
- 从子中合成活性碳 (CNS-ACC),作为W-PCM的热增强剂.
- 研究CNS-ACC对W-PCM的稳定性,热导率和固化行为的影响.
- 评估CNS-ACC修改的W-PCM在降低建筑冷却中的能源消耗和二氧化碳排放方面的潜力.
主要方法:
- 来自子的活性炭 (CNS-ACC) 通过蒸汽激活来合成.
- W-PCM合成涉及将中枢神经系统-ACC的不同重量百分比 (0.1,0.6,1.2) 纳入其中.
- 描述包括传输电子显微镜,泽塔电位分析,导热量测量和差异扫描热量计.
- 固化性能在球形外中进行了评估.
主要成果:
- 中枢神经系统-ACC表现出有利的孔状形态,并为W-PCM传递了体稳定性.
- 增加了1.2%重量的CNS-ACC,使液体和固体的导热率分别提高了9%和22%.
- 1.2重%的CNS-ACC完全抑制了超冷却度 (SCD),并将固化加速了18.5%.
- 特定热量和隐性热量分别出现了6%和8%的轻微下降.
结论:
- 来自子的活性炭有效地提高了W-PCM热能存储的性能.
- 添加CNS-ACC显著提高了导热率,并消除了W-PCM中的超冷却.
- 这种W-PCM-CNS-ACC复合体显示了高效建筑冷却的前景,从而降低了能源消耗和二氧化碳排放.
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