Transparent Bamboo with High Radiative Cooling Targeting Energy Savings
Chengzhi Zhou, Iegreat Julianri, Shancheng Wang, Siew Hwa Chan, Ming Li, Yi Long
Abstract
We have fabricated a bamboo-derived composite with enhanced radiative cooling via a simple solution-based process. The long-wavelength infrared emissivity (εLWIR) for one side is as low as 0.3, to prevent the heat exchange, and the εLWIR of the other side is near unity (0.95), to promote the radiative cooling. The energy saving simulations have been performed in Singapore, suggesting up to 89% energy savings enhancement, when compared with commercial low-E glass.
Topics & Concepts
EmissivityBambooRadiative coolingRadiative transferMaterials scienceInfraredPassive coolingLow emissivityComposite numberHeat exchangerRadiant energyOptoelectronicsWavelengthRadiant heatNuclear engineeringOpticsComposite materialThermalThermodynamicsPhysicsEngineeringRadiationThermal Radiation and Cooling TechnologiesUrban Heat Island MitigationBuilding Energy and Comfort Optimization