Night-time radiative warming using the atmosphere
Abstract Night-time warming is vital for human production and daily life. Conventional methods like active heaters are energy-intensive, while passive insulating films possess restrictions regarding space consumption and the lack of heat gain. In this work, a nanophotonic-based night-time warming st...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2023-11-01
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| Series: | Light: Science & Applications |
| Online Access: | https://doi.org/10.1038/s41377-023-01315-y |
| _version_ | 1827764150200172544 |
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| author | Yining Zhu Yiwei Zhou Bing Qin Rui Qin Min Qiu Qiang Li |
| author_facet | Yining Zhu Yiwei Zhou Bing Qin Rui Qin Min Qiu Qiang Li |
| author_sort | Yining Zhu |
| collection | DOAJ |
| description | Abstract Night-time warming is vital for human production and daily life. Conventional methods like active heaters are energy-intensive, while passive insulating films possess restrictions regarding space consumption and the lack of heat gain. In this work, a nanophotonic-based night-time warming strategy that passively inhibits thermal radiation of objects while actively harnessing that of atmosphere is proposed. By using a photonic-engineered thin film that exhibits high reflectivity (~0.91) in the atmospheric transparent band (8–14 μm) and high absorptivity (~0.7) in the atmospheric radiative band (5–8 and 14–16 μm), temperature rise of 2.1 °C/4.4 °C compared to typical low-e film and broadband absorber is achieved. Moreover, net heat loss as low as 9 W m−2 is experimentally observed, compared to 16 and 39 W m−2 for low-e film and broadband absorber, respectively. This strategy suggests an innovative way for sustainable warming, thus contributes to addressing the challenges of climate change and promoting global carbon neutrality. |
| first_indexed | 2024-03-11T11:01:41Z |
| format | Article |
| id | doaj.art-e8ce28137fb841f480c0a9670d04ec94 |
| institution | Directory Open Access Journal |
| issn | 2047-7538 |
| language | English |
| last_indexed | 2024-03-11T11:01:41Z |
| publishDate | 2023-11-01 |
| publisher | Nature Publishing Group |
| record_format | Article |
| series | Light: Science & Applications |
| spelling | doaj.art-e8ce28137fb841f480c0a9670d04ec942023-11-12T12:30:30ZengNature Publishing GroupLight: Science & Applications2047-75382023-11-011211810.1038/s41377-023-01315-yNight-time radiative warming using the atmosphereYining Zhu0Yiwei Zhou1Bing Qin2Rui Qin3Min Qiu4Qiang Li5State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang UniversityState Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang UniversityState Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang UniversityState Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang UniversityKey Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake UniversityState Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang UniversityAbstract Night-time warming is vital for human production and daily life. Conventional methods like active heaters are energy-intensive, while passive insulating films possess restrictions regarding space consumption and the lack of heat gain. In this work, a nanophotonic-based night-time warming strategy that passively inhibits thermal radiation of objects while actively harnessing that of atmosphere is proposed. By using a photonic-engineered thin film that exhibits high reflectivity (~0.91) in the atmospheric transparent band (8–14 μm) and high absorptivity (~0.7) in the atmospheric radiative band (5–8 and 14–16 μm), temperature rise of 2.1 °C/4.4 °C compared to typical low-e film and broadband absorber is achieved. Moreover, net heat loss as low as 9 W m−2 is experimentally observed, compared to 16 and 39 W m−2 for low-e film and broadband absorber, respectively. This strategy suggests an innovative way for sustainable warming, thus contributes to addressing the challenges of climate change and promoting global carbon neutrality.https://doi.org/10.1038/s41377-023-01315-y |
| spellingShingle | Yining Zhu Yiwei Zhou Bing Qin Rui Qin Min Qiu Qiang Li Night-time radiative warming using the atmosphere Light: Science & Applications |
| title | Night-time radiative warming using the atmosphere |
| title_full | Night-time radiative warming using the atmosphere |
| title_fullStr | Night-time radiative warming using the atmosphere |
| title_full_unstemmed | Night-time radiative warming using the atmosphere |
| title_short | Night-time radiative warming using the atmosphere |
| title_sort | night time radiative warming using the atmosphere |
| url | https://doi.org/10.1038/s41377-023-01315-y |
| work_keys_str_mv | AT yiningzhu nighttimeradiativewarmingusingtheatmosphere AT yiweizhou nighttimeradiativewarmingusingtheatmosphere AT bingqin nighttimeradiativewarmingusingtheatmosphere AT ruiqin nighttimeradiativewarmingusingtheatmosphere AT minqiu nighttimeradiativewarmingusingtheatmosphere AT qiangli nighttimeradiativewarmingusingtheatmosphere |