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首页> 外文期刊>Fibres & textiles in Eastern Europe >Solar Absorption Index (SAI) as a Parameter to Assess the Coolness of Fabrics Exposed to Sunlight
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Solar Absorption Index (SAI) as a Parameter to Assess the Coolness of Fabrics Exposed to Sunlight

机译：太阳能吸收指数（SAI）作为评估暴露于阳光的织物凉爽的参数

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摘要

Any textiles intended for outdoor usage, particularly in a hot climate with intense sunlight, must be designed and engineered to provide cooling comfort to the wearer: In the case of apparel, clothing creates a microclimate that helps the body maintain its regular themo-regulatory and physiological activities while offering protection against outdoor exposure to UV rays. It is well known that fabrics that absorb significant amounts of solar radiation become inherently hot and feel uncomfortable. This article presents a review of the fundamental radiation interaction mechanisms of fabrics and discusses the key role that fabric structure plays in fabric radiation absorption to determine how cool or hot a fabric will become when exposed to sunlight. A new parameter called the Solar Absorption Index (SAI) is introduced and can be used to characterise the level of coolness (or hotness) of a fabric exposed to solar radiation. The SAI is calculated directly front the fabric's temperature, ultimately the main factor in determining fabric ability to stay cool. The discussion presented in this article focuses solely on the interaction between solar radiation and fabrics without considering the effects of convection, conduction or any interdependency with the moisture level in the environment.
机译：任何用于户外用途的纺织品，特别是在具有激烈的阳光下的热气氛中，必须设计和设计，以为穿着者提供冷却舒适性：在服装的情况下，服装造成一条有助于身体维持其常规主题的微气候和生理活动，同时提供防止紫外线的户外暴露。众所周知，吸收大量太阳辐射的织物具有固有的炎热，感到不舒服。本文介绍了织物的基本辐射相互作用机制的审查，并讨论了织物结构在织物辐射吸收中起作用的关键作用，以确定织物在暴露于阳光时如何变化。引入了一种称为太阳能吸收指数（SAI）的新参数，可用于表征暴露于太阳辐射的织物的冷凝器（或热度）的水平。 SAI直接计算面料的温度，最终是确定保持凉爽的织物能力的主要因素。本文中提出的讨论仅侧重于太阳辐射和织物之间的相互作用，而无需考虑对流，传导或任何与环境中的水分水平的相互依赖的影响。

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