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Generating Negative Air Ions in Construction Waterscapes at a Garden Scale

机译：在花园规模的建筑水景中产生负空气离子

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摘要

High concentrations of negative air ions (NAIs) and low concentrations of positive air ions (PAI), along with a low monopole coefficient (PAI/NAI), are likely to provide physiological and psychological benefits to the humans. A water body produces NAIs through the Lenard effect. This concept can be applied in designing garden waterscapes in residential buildings to provide fresh and healthy air for urban residents. In this study, we conducted several experiments to assess the effectiveness of different waterscape designs in producing air ions. The results revealed that increasing waterfall tiers, slopes, impact points, widths, and heights increased the NAI concentrations and reduced the values of monopole coefficients, thus providing health benefits to humans. In particular, increasing waterfall tiers and slopes increased the NAI concentrations most substantially. Moreover, we established a composite waterscape and determined that it produced fewer NAIs along with a less favorable monopole coefficient compared with the data observed at the experimentally adjusted tiers and slopes. Therefore, we suggest that simple waterscapes with multiple waterfall tiers or steep waterfall slopes should be favored over complex waterscapes. Such simple designs can help construct a garden that provides health benefits.
机译：高浓度的负空气离子（NAIs）和低浓度的正空气离子（PAI）以及低的单极系数（PAI / NAI）可能会给人类带来生理和心理上的好处。水体通过伦纳德效应产生NAI。此概念可用于设计住宅建筑中的花园水景，为城市居民提供新鲜健康的空气。在这项研究中，我们进行了一些实验，以评估不同水景设计在产生空气离子中的有效性。结果表明，增加瀑布层，坡度，冲击点，宽度和高度会增加NAI浓度并降低单极系数的值，从而为人类带来健康益处。特别是，瀑布层和坡度的增加最大程度地增加了NAI浓度。此外，我们建立了一个复合水景，并确定与实验调整的层和坡度观察到的数据相比，它产生的NAI更少，单极系数也更差。因此，我们建议应优先考虑具有多个瀑布层或陡峭的瀑布坡度的简单水景，而不是复杂的水景。这样简单的设计可以帮助建造一个对健康有益的花园。

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