建设一个强大的辐射冷却发射器,以有效地储存和运输食品
Shuang Tao1,2, Weikang Cai1,2, Jingtian Han1,2
1College of Materials Science and Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China.
ACS applied materials & interfaces
|April 29, 2024
概括
被动辐射冷却 (RC) 包装通过改善物流过程中的温度控制来提高食品安全. 这种创新的RC盒技术提供了显著的冷却,减少易腐烂物品的腐烂.
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.
- 食品科学 食品科学 食品科学
背景情况:
- 由于易腐货物物流中的温度控制不足,食品安全受到挑战.
- 目前的物流正在努力保持持续的低温,导致损坏.
- 被动辐射冷却 (RC) 技术为增强热管理提供了潜在的解决方案.
研究的目的:
- 将被动辐射冷却 (RC) 技术应用于包装,以改善食品储存和运输中的温度控制.
- 为实际应用制造和表征一个具有增强耐磨性的RC发射器.
- 评估RC包装的冷却性能和对水果腐烂率的影响.
主要方法:
- 制造一个RC发射器,使用Al2O3进行轻易涂层方法,以提高耐磨性.
- 通过磨损测试对光学特性 (太阳光反射和红外发射) 和耐磨性进行表征.
- 与标准包装 (波纹和泡盒) 相比,RC盒中的温度下降在户外测量.
- 在RC盒存储时评估水果腐烂率.
主要成果:
- 该RC发射器实现了高阳光反射率 (0.92) 和红外发射率 (0.84),具有出色的耐磨性.
- 与波纹纸盒和泡盒相比,RC盒显示温度下降幅度为~9°C和~4°C.
- 储存在RC盒中的水果显示了降低的腐烂率.
- 通过打印进行审美定制并没有损害RC发射器的冷却能力.
结论:
- 开发的RC发射器具有卓越的光学性能,耐磨性和冷却能力.
- 在食品物流中,RC包装技术显示了增强温度控制的巨大潜力.
- 这项技术可以有助于提高食品安全,减少储存和运输期间的损坏.
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