Concentrated radiative cooling

Peoples, Joseph; Hung, Yu-Wei; Li, Xiangyu; Gallagher, Daniel L.; Fruehe, Nathan; Pottschmidt, Mason; Breseman, Cole; Adams, Conrad; Yuksel, Anil; Braun, James E.; Horton, W. Travis; Ruan, Xiulin

doi:10.1016/j.apenergy.2021.118368

Cited by 27 publications

(16 citation statements)

References 15 publications

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“…Following the early stage of this technology, which pursued the development of daytime radiative coolers, interest shifted to scalable and affordable radiative coolers for building-exterior materials, which is the domain that could benefit the most from radiative cooling. These efforts have resulted in radiative coolers in the form of, e.g., rigid plates, 206,207 flexible films 208,209 /polymers, 210,211 paints, 212,213 and woods. 13 In this paper, we reviewed the fundamental principles, materials, and structures of the radiative coolers.…”

Section: Discussionmentioning

confidence: 99%

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Heat-shedding with photonic structures: radiative cooling and its potential

Heo¹,

Lee²,

Song

2022

J. Mater. Chem. C

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Section: Discussionmentioning

confidence: 99%

“…These efforts have resulted in radiative coolers in the form of, e.g. , rigid plates, 206,207 flexible films 208,209 /polymers, 210,211 paints, 212,213 and woods. 13…”

Section: Discussionmentioning

confidence: 99%

Heat-shedding with photonic structures: radiative cooling and its potential

Heo¹,

Lee²,

Song

2022

J. Mater. Chem. C

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“…Similar to the solar energy collection system, the combination of radiative cooler and mid‐infrared reflectors can achieve the purpose of “concentrated radiative cooling” by radiating the bottom sheltered area or even the whole range to the sky, which is enlightening for the design of integrated power generation systems that utilize both solar heating and radiative cooling effect. [ 104,105 ]…”

Section: Self‐uninterrupted Electricity Power Systemmentioning

confidence: 99%

“…[91] Similar to the solar energy collection system, the combination of radiative cooler and mid-infrared reflectors can achieve the purpose of "concentrated radiative cooling" by radiating the bottom sheltered area or even the whole range to the sky, which is enlightening for the design of integrated power generation systems that utilize both solar heating and radiative cooling effect. [104,105] The performance of the power generation system depends on the layout of thermoelectric elements and the direction of heat flow. For a planar TEG with transverse heat flow (Figure 6l), the setting of hot end and cold end is simpler.…”

Section: Teg Simultaneously Harvests Energy From the Sun And Cold Spacementioning

confidence: 99%

“…The photothermal conversion performance of the solar absorber and the cooling performance of the radiative cooler have approached the theoretical limit, and the manufacturing technology of thermoelectric materials and devices has also made exciting progress. [102][103][104][105][106] The combination of sky-facing radiative cooler and solar absorber with thermoelectric generator is a new energy device that is easy to implement but has greater parasitic heat loss. The non-planar thermoelectric device integrated with solar heating and radiative cooling can be coupled with a variety of functional devices and environmental heat sources to improve its output performance and enrich its application scenarios, but it has a more complex manufacturing process and needs to consider the path of solar radiation and thermal radiation to reduce the shielding effect.…”

Section: Summary and Comparisonmentioning

confidence: 99%

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An Emerging Energy Technology: Self‐Uninterrupted Electricity Power Harvesting from the Sun and Cold Space

Zhang

Liu

et al. 2023

Advanced Energy Materials

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Harvesting sustainable energy from the sun and cold space to uninterruptedly generate green electricity provides a potential alternative way to solve the unfolding energy crisis and environmental issues. This emerging energy technology is seeing important progress and further advances remain challenging. Herein, the underlying principle, thermodynamic limit, and global potential of this technology are comprehensively reviewed. The recent advances of energy harvesters (solar absorbers or/and radiative coolers) integrated with energy converters (thermoelectric generators) are summarized, and strategies including thermal/optical/radiative cooling concentration, thermal dissipation, and geometric optimization are discussed. Last, the great prospects for uninterrupted energy harvest and electricity generation in extensive fields are outlined, and the scientific and engineering challenges for upcoming growth are proposed.

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Dynamical Janus‐Like Behavior Excited by Passive Cold‐Heat Modulation in the Earth‐Sun/Universe System: Opportunities and Challenges

Li,

Zhang,

et al. 2024

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The utilization of solar‐thermal energy and universal cold energy has led to many innovative designs that achieve effective temperature regulation in different application scenarios. Numerous studies on passive solar heating and radiation cooling often operate independently (or actively control the conversion) and lack a cohesive framework for deep connections. This work provides a concise overview of the recent breakthroughs in solar heating and radiation cooling by employing a mechanism material in the application model. Furthermore, the utilization of dynamic Janus‐like behavior serves as a novel nexus to elucidate the relationship between solar heating and radiation cooling, allowing for the analysis of dynamic conversion strategies across various applications. Additionally, special discussions are provided to address specific requirements in diverse applications, such as optimizing light transmission for clothing or window glass. Finally, the challenges and opportunities associated with the development of solar heating and radiation cooling applications are underscored, which hold immense potential for substantial carbon emission reduction and environmental preservation. This work aims to ignite interest and lay a solid foundation for researchers to conduct in‐depth studies on effective and self‐adaptive regulation of cooling and heating.

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Concentrated radiative cooling

Cited by 27 publications

References 15 publications

Heat-shedding with photonic structures: radiative cooling and its potential

Heat-shedding with photonic structures: radiative cooling and its potential

An Emerging Energy Technology: Self‐Uninterrupted Electricity Power Harvesting from the Sun and Cold Space

Dynamical Janus‐Like Behavior Excited by Passive Cold‐Heat Modulation in the Earth‐Sun/Universe System: Opportunities and Challenges

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