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Scalable colored Janus fabric scheme for dynamic thermal management
Sijie Pian1, Zhuning Wang1, Chengtao Lu1
1State Key Laboratory for Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Intelligent Optics and Photonics Research Center, Jiaxing Research Institute, International Research Center for Advanced Photonics, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China.
Iscience
|October 14, 2024
Summary
Engineered Janus fabrics offer superior passive thermal management by reflecting sunlight and controlling heat emission. This adaptable material shows significant energy-saving potential across various climates.
Area of Science:
- Materials Science
- Thermal Engineering
- Nanotechnology
Background:
- Passive thermal management is crucial for mitigating heat stress.
- Adapting thermal management structures to diverse environments remains a challenge.
Purpose of the Study:
- To investigate the potential of engineered Janus fabrics for multi-scene passive thermal management.
- To evaluate the performance of Janus fabrics compared to commercial products.
Main Methods:
- Fabricating a Janus fabric with specific optical properties: 92% solar reflectivity and 94% emissivity on the upper side, and <30% infrared emissivity on the lower side.
- Testing the fabric's energy-saving efficiency under various climate conditions.
Main Results:
- The engineered Janus fabric demonstrated superior energy-saving efficiency compared to commercial products.
- The fabric's performance was consistent across different climate conditions.
Conclusions:
- Janus fabrics, when engineered with specific optical properties, are highly effective for passive thermal management.
- The scalable manufacturing and performance make Janus structures a promising solution for diverse thermal management applications.
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