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Anti-Frosting and Defrosting Fins with Hierarchical Interlocking Structure for Enhancing Energy Utilization Efficiency of Heat Exchanger
Small ( IF 13.0 ) Pub Date : 2024-09-10 , DOI: 10.1002/smll.202405424 Yue Zhao 1 , Wenzhuo Liu 1 , Yu Du 1 , Jun Tong 2 , Heng Xie 3 , Ting Wu 1 , Jinping Qu 1
Small ( IF 13.0 ) Pub Date : 2024-09-10 , DOI: 10.1002/smll.202405424 Yue Zhao 1 , Wenzhuo Liu 1 , Yu Du 1 , Jun Tong 2 , Heng Xie 3 , Ting Wu 1 , Jinping Qu 1
Affiliation
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Air conditioners, being an indispensable component of contemporary living, consume a significant amount of electricity every year. The accumulation of frost, dust, and water on the fins surface hinders the efficiency of the heat exchange process, thereby reducing the effectiveness of the air conditioning system. To address these limitations, this paper proposes a large-scale and cost-effective method combining compression molding, chemical etching, and spray coating to fabricate aluminum fins (HMNA) with hierarchical interlocking structures. The HMNA exhibits outstanding durability, passive and active anti-icing, anti-frosting and defrosting, and self-cleaning capabilities associated with the robust super-hydrophobicity. The hierarchical interlocking structure effectively enhances the physical and environmental durability of the HMNA. Most significantly, the frost time of the HMNA fins assembled heat exchanger is significantly delayed by ≈700% compared to the traditional Al fins heat exchanger, while the frost layer thickness is reduced by ≈75%. This greatly reduces the frequency with which the defrosting cycle is started, thus effectively improving the efficiency of the air conditioning system. The proposed method for economical and mass production of the HMNA fins can be an excellent candidate for the development of low energy consumption air conditioning system.
中文翻译：
具有分层互锁结构的防结霜和除霜翅片，用于提高换热器的能源利用效率
空调作为现代生活不可或缺的组成部分，每年消耗大量电力。翅片表面的霜、灰尘和水的积累阻碍了热交换过程的效率，从而降低了空调系统的有效性。为了解决这些限制，本文提出了一种结合压缩成型、化学蚀刻和喷涂涂层的大规模且具有成本效益的方法来制造具有分层互锁结构的铝翅片 （HMNA）。HMNA 具有出色的耐用性、被动和主动防结冰、防结霜和解冻以及与强大的超疏水性相关的自清洁能力。分层互锁结构有效地增强了 HMNA 的物理和环境耐用性。最重要的是，与传统的铝翅片换热器相比，HMNA 翅片组装式换热器的结霜时间显著延迟了 ≈700%，而结霜层厚度减少了 ≈75%。这大大降低了除霜循环的启动频率，从而有效提高了空调系统的效率。所提出的经济和大规模生产 HMNA 翅片的方法可以成为开发低能耗空调系统的绝佳候选者。
更新日期：2024-09-10
中文翻译：
具有分层互锁结构的防结霜和除霜翅片，用于提高换热器的能源利用效率
空调作为现代生活不可或缺的组成部分，每年消耗大量电力。翅片表面的霜、灰尘和水的积累阻碍了热交换过程的效率，从而降低了空调系统的有效性。为了解决这些限制，本文提出了一种结合压缩成型、化学蚀刻和喷涂涂层的大规模且具有成本效益的方法来制造具有分层互锁结构的铝翅片 （HMNA）。HMNA 具有出色的耐用性、被动和主动防结冰、防结霜和解冻以及与强大的超疏水性相关的自清洁能力。分层互锁结构有效地增强了 HMNA 的物理和环境耐用性。最重要的是，与传统的铝翅片换热器相比，HMNA 翅片组装式换热器的结霜时间显著延迟了 ≈700%，而结霜层厚度减少了 ≈75%。这大大降低了除霜循环的启动频率，从而有效提高了空调系统的效率。所提出的经济和大规模生产 HMNA 翅片的方法可以成为开发低能耗空调系统的绝佳候选者。
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