Research of anti-frosting technology in refrigeration and air conditioning fields: A review
Research of anti-frosting technology in refrigeration and air conditioning fields: A review
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制冷空调领域防结霜技术研究综述
DOI：
10.1016/j.rser.2017.08.046
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发表时间：
2018
影响因子：
15.9
通讯作者：
Xiaosong Zhang
中科院分区：
文献类型：
--
作者：
Feng Wang;Caihua Liang;Xiaosong Zhang
在制冷和空调领域，结霜是不可避免的。结霜严重影响设备的运行效率，并导致除霜能耗相当大。本研究综述了制冷空调领域的防结霜技术，包括固体/液体干燥剂空气除湿、超声波振动、外部电场/磁场、表面处理等。虽然空气除湿是延缓结霜的有效方法，但干燥剂再生问题阻碍了该方法的实际应用。超声波振动和外部电场/磁场的方法不适合大中型翅片管蒸发器，导致额外的投资和能量输入。此外，电场/磁场的防霜效果并不明显，需要更多的实验来验证。而表面处理具有高效、低成本、环保、实用等优点。特别是超疏水表面在防止结霜和改善除霜方面表现出优异的性能。这对于制冷空调领域的节能减排具有重要意义。如果能够通过简单的制备方法进一步改善强度问题，对于应对制冷空调领域的结霜现象，将是一种很有前景的防结霜技术。
Frost formation is inevitable in refrigeration and air conditioning fields. Frosting heavily impacts on the operating efficiency of equipments, and leads to considerable energy consumption for defrosting. This study reviewed anti-frosting techniques in refrigeration and air conditioning fields, including air dehumidification by solid/liquid desiccant, ultrasonic vibration, external electric/magnetic field, surface treatment, etc. Although air dehumidification is an effective method to delay frost formation, the problem of desiccant regeneration prevents this method from practical application. The methods of ultrasonic vibration and external electric/magnetic field are not suitable for large or medium-sized fin-tube evaporator, which result in additional investment and energy input. Besides, the anti-frosting effect of electric/magnetic field is not obvious and needs to be verified by more experiments. However, surface treatment has advantages of high efficient, low cost, environmental protection and practicability. In particular, the superhydrophobic surface shows excellent performance in frosting prevention and defrosting improvement. This is of great significance for energy saving in refrigeration and air conditioning fields. If the strength problem can be further improved by simple preparation methods, it will be a promising anti-frosting technique to deal with the phenomenon of frost formation in refrigeration and air conditioning fields.
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