使用蜜蜂提高混合物相变材料的热能储存特性
Sirine Ben Belgacem1, Abdelwaheb Trigui2, Ilyes Jedidi1,3
1Laboratory of Materials Sciences and Environmental (LMSE), University of Sfax, Sfax, Tunisia.
Environmental science and pollution research international
|August 7, 2024
概括
蜂与低密度聚乙烯 (LDPE) 和 styrene-b-(乙烯-co-butylene) -b-styrene (SEBS) 混合,可以产生有效的相变材料 (PCM). 这些新的混合PCM为热能存储应用提供了增强的热稳定性和减少泄漏.
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
- 聚合物复合材料 聚合物复合材料
背景情况:
- 变相材料 (PCM) 对于热能储存至关重要.
- 蜜蜂是一种具有成本效益和丰富的有机材料,具有作为PCM的潜力.
- 挑战包括纯蜜蜂的泄漏和热稳定性.
研究的目的:
- 开发使用蜜蜂,低密度聚乙烯 (LDPE) 和 styrene-b-(乙烯-co-丁烯) -b-styrene (SEBS) 的新型混合相变材料 (B-PCMs).
- 评估这些B-PCM的物理化学特性,热稳定性和性能.
- 评估LDPE和SEBS作为蜂支和封装材料的有效性.
主要方法:
- 蜂/LDPE/SEBS复合物的合成.
- 使用X射线衍光测量,红外光谱测量,扫描电子显微镜,热重力测量分析和差分扫描热量测量进行表征.
- 在热循环过程中评估热性能,泄漏,降解和超冷却.
- 红外热图用于热行为分析.
主要成果:
- 证实B-PCM在组件之间没有化学反应.
- 微观结构分析表明热导率有所改善.
- 增加SEBS显著提高了热稳定性.
- B-PCM 具有较高的潜热储存能力,并减少了超冷却.
- 观察到最小的泄漏和降解,特别是在SEBS.
- 添加LDPE改善了融时间,以获得更快的热反应.
结论:
- 在LDPE/SEBS混合物中封装时,蜂是一种可行的PCM.
- 开发的B-PCM显示出出色的热能储能能力.
- SEBS是一种有效的封装剂,而LDPE则是一种良好的支材料.
- 这些B-PCM在各种热能储能应用中表现有前途.
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