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无离子化水和氧化铁纳米流体的实验热性能用于冷热储存

Ponnusamy Chandrasekaran¹, Doss Premnath², Marimuthu Cheralathan²

¹Department of Mechanical Engineering, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603203, India. chandrap4@srmist.edu.in.

Environmental science and pollution research international

|March 25, 2024

概括

这项研究表明,相变材料中的氧化铁纳米颗粒可以改善空调的热能储存. 这种纳米流体相变材料 (NFPCM) 显著增强热传递,减少冷却器运行时间.

科学领域:

材料科学材料科学材料科学
热力工程是热力工程中的一个.
纳米技术纳米技术

背景情况:

变相材料 (PCM) 对于建筑物中的热舒适度和能源管理至关重要.
使用PCM的冰存储对于管理大型空调系统的峰值功率负载至关重要.
脱离离子水是一种常见的PCM,但其次冷却效应可能会阻碍性能.

研究的目的:

为了研究在球形容器中悬浮的氧化铁纳米颗粒的脱离离子水的结特性.
为了评估这种纳米流体相变材料 (NFPCM) 对于冷藏应用的性能.
评估NFPCM在提高热舒适度和降低空调系统能源消耗方面的潜力.

主要方法:

基于氧化铁纳米粒子的NFPCM的合成.
在-2°C和-6°C的周围流体温度下对NFPCM结行为进行实验调查.
分析充电均性,表面热量流和次冷却效应.

主要成果:

NFPCM展示了统一的收费,在收费期的第一季度,50%的质量被结.
在-6°C时,表面热流量增加了200%.
脱离离子水的低冷却效应在没有核化剂的情况下几乎被消除.
通过优化容器设计和部分充电,冷却器的运行时间减少了75% .

结论:

铁氧化物纳米粒子增强的NFPCM为冷却应用提供了高效的传热和更短的冷时间.
NFPCM显著提高了功率能力,从而带来了大规模空调的经济效益和可持续性.
该研究的结果支持可持续发展目标7和13.

关键词:

空调的使用情况.纳米流体纳米流体阶段变化材料的变相材料.超低温超低温超低温超低温超低温热能储存是热能储存的一种方式.

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