A Triple-Layer Membrane with Hybrid Evaporation and Radiation for Building Cooling

نویسندگان

چکیده

Passive cooling for thermal comfort improvement has received extensive attention its low energy consumption. However, most of the existing passive technologies require a complex system design and supporting equipment, since they cool ambient air. Herein, we propose hybrid evaporative radiative membrane with hygroscopic hydrogel sandwiched by two layers porous polyethylene aerogel (PEA). The implements cooling. Combining high solar reflection PEA infrared emissivity hydrogel, this also possesses In addition, transmittance conductivity allow direct heat transfer between human body, instead Through comparative experiments theoretical calculations, it is indicated that net power delivered to body up 78.45 W m−2, which much higher than conventional materials. Outdoor demonstration shows emission below can achieve an average sub-ambient temperature drop 6 °C, maximum 14 showing great potential building personal

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ژورنال

عنوان ژورنال: Energies

سال: 2023

ISSN: ['1996-1073']

DOI: https://doi.org/10.3390/en16062750