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A superhydrophobic solar selective absorber used in a flat plate solar collector

机译：用于平板太阳能集热器的超疏水太阳能选择性吸收器

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A new kind of superhydrophobic (SH) solar selective absorber (SSA) used in a low-temperature flat plate solar collector is proposed. Getting rid of the glass cover can improve the performance of the flat plate solar collector. SSA with a SH coating can maintain the efficiency in a practical outdoor working environment. The SH coating can be made by a simple Sol–Gel method; the water contact angle of SH SSA can reach up to 157° and the sliding angle is less than 2°. The self-cleaning of SH SSA can be realized by rainwater or natural wind. The solar absorptance of SH SSA is still 89.46% after treating in a neutral salt spray for 48 h, which indicates that SH SSA has good corrosion resistance and is suitable to the outdoor environment. Thermal performance tests show that the flat plat solar collector with SH SSA has excellent thermal performance for low-temperature application.
机译：提出了一种用于低温平板太阳能集热器的新型超疏水（SH）太阳能选择性吸收剂（SSA）。摆脱玻璃盖可以提高平板太阳能收集器的性能。具有SH涂层的SSA可以在实际的户外工作环境中保持效率。 SH涂层可以通过简单的Sol-Gel方法制成; SH SSA的水接触角可达157°，滑动角小于2°。 SH SSA的自清洁可以通过雨水或自然风来实现。 SH SSA在中性盐雾中处理48小时后的吸光率仍为89.46％，说明SH SSA具有良好的耐腐蚀性，适用于室外环境。热性能测试表明，带有SH SSA的平板太阳能集热器在低温应用中具有出色的热性能。

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