Abstract An innovative, extrudable material with the ability to filter the sun’s energy has been developed for the mass manufacture of high performance swimming pool covers. Solar radiation in the visible spectrum ( 750 nm) is absorbed by the material so that minimal visible light enters the pool water which inhibits photosynthesis to prevent algae growth. Furthermore, the material has high transmission properties in the near infrared that can be efficiently absorbed by the water allowing for a higher temperature increase compared to a standard non-selective opaque cover. We have developed a model to enable the cover efficiency to convert solar energy to heat a swimming pool, calculated based on the wavelength dependent absorption and transmission properties of the cover. We have validated this model using dedicated full-scale test-facility. Our results demonstrate that a selective transmission cover can increase the absolute heating efficiencies by approximately 12% compared to the fully opaque equivalent.

中文翻译：

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选择性透光作为太阳能游泳池盖的领先创新

摘要 一种能够过滤太阳能的创新型可挤压材料已被开发出来用于高性能游泳池盖的大规模制造。可见光谱（750 nm）中的太阳辐射被材料吸收，从而使进入池水中的可见光最少，从而抑制光合作用以防止藻类生长。此外，该材料在近红外区域具有高透射特性，与标准的非选择性不透明覆盖层相比，可以有效地被水吸收，从而允许更高的温度升高。我们开发了一个模型，使覆盖效率能够将太阳能转化为加热游泳池，该模型基于覆盖的波长相关吸收和传输特性进行计算。我们已经使用专用的全尺寸测试设备验证了该模型。