Abstract Following paper presents an experimental study on eight potential plate materials for evaporative air coolers. There are three groups of materials: currently used plate materials (kraft papers), new natural origin plate materials (cotton fibers), and new synthetic plate materials (synthetic fibers). Proposed materials were examined in terms of different properties such as upward and downward distribution height, water capacity, durability and diffusivity. The results were compared with data presented by other authors. It was established that, synthetic materials are characterized by superior water distribution qualities in comparison to the materials of natural origin. Basalt paper-like synthetic fiber allowed to rise water vertically to 40 cm during 120 min tests. The highest water rise obtained in other studies was 18 cm, hence basalt paper-like fiber is visibly superior in comparison with the currently known materials. In terms of downward water distribution, two new synthetic surfactant non-wovens show better performance than the existing materials by quickly and evenly distributing water over the entire length of the sample. The durability of synthetic fibers and non-wovens is higher comparing with the materials of natural origin. The results show that synthetic materials are better suited to the role of plate materials in evaporative air coolers.

中文翻译：

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蒸发式空冷器板材的试验研究

摘要 下面的论文对蒸发式空气冷却器的八种潜在板材料进行了实验研究。材料分为三组：目前使用的板材（牛皮纸）、新型天然来源板材（棉纤维）和新型合成板材（合成纤维）。根据不同的特性，如向上和向下的分布高度、水容量、耐久性和扩散性，对提议的材料进行了检查。结果与其他作者提供的数据进行了比较。已经确定，与天然来源的材料相比，合成材料的特点是具有优异的水分布质量。在 120 分钟的测试中，玄武岩纸状合成纤维允许将水垂直升至 40 厘米。其他研究中获得的最高水升为 18 厘米，因此，与目前已知的材料相比，玄武岩纸状纤维明显优越。在向下的水分布方面，两种新型合成表面活性剂无纺布通过在样品的整个长度上快速均匀地分布水，表现出比现有材料更好的性能。与天然来源的材料相比，合成纤维和无纺布的耐用性更高。结果表明，合成材料更适合于板状材料在蒸发式空气冷却器中的作用。与天然来源的材料相比，合成纤维和无纺布的耐用性更高。结果表明，合成材料更适合于板状材料在蒸发式空气冷却器中的作用。与天然来源的材料相比，合成纤维和无纺布的耐用性更高。结果表明，合成材料更适合于板状材料在蒸发式空气冷却器中的作用。