Radiative cooling for buildings: A review of techno-enviro-economics and life-cycle assessment methods

Pirvaram, Atousa; Talebzadeh, Nima; Leung, Siu N.; O’Brien, Paul G.

doi:10.1016/j.rser.2022.112415

Cited by 37 publications

(16 citation statements)

References 114 publications

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“…In addition, a novel hybrid material with auto-deposited SiO 2 microspheres in a 3D porous cellulose acetate film for outdoor PRC was reported, [35] where the SiO 2 -rich side exhibited stronger IR emissivity due to the phonon polarization resonance and abundant pore structure-enabled high solar reflectivity. These materials possess great potential in building cooling, [36] personal thermal management, [37,38] photovoltaic cooling, [39] electricity generation, [40] and water harvesting. [41] Nevertheless, these materials are only suitable for static conditions and cannot achieve dynamic thermal regulation.…”

Section: Introductionmentioning

confidence: 99%

Ultrafast Switchable Passive Radiative Cooling Smart Windows with Synergistic Optical Modulation

Deng

Yang

Xiao

et al. 2023

Adv Funct Materials

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Switchable passive radiative cooling (PRC) smart windows can modulate sunlight transmission and spontaneously emit heat to outer space through atmospheric transparent window, presenting great potential in building energy conservation. However, realizing stable and on‐demand control of the cooling efficiency for PRC materials is still challenging. Herein, an electro‐controlled polymer‐dispersed liquid crystal (PDLC) smart window showing PRC property is designed and prepared by adding mid‐infrared emitting reactive monomers into the conventional PDLC matrix. It is found that not only the electro‐optical properties but also the PRC efficiency of PRC PDLC film are tunable by regulating the content of the mid‐infrared emitting components, film thickness, and micromorphology. This advanced PRC PDLC material achieves a near/sub‐ambient temperature when the solar irradiance is below 400 W m−2 and can dynamically manage daytime cooling efficiency. Importantly, its PRC efficiency is capable of being tuned in an on‐demand and ultrafast millisecond‐scale way, whose controllable transparency enables multistage heat regulation. This study is hoped to provide new inspiration in the preparation of advanced optical devices and energy‐efficient equipment.

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Section: Introductionmentioning

confidence: 99%

Ultrafast Switchable Passive Radiative Cooling Smart Windows with Synergistic Optical Modulation

Deng

Yang

Xiao

et al. 2023

Adv Funct Materials

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“…It is estimated that even DOI: 10.1002/adfm.202305734 a slight temperature decrease of 1 °C can lead to a significant reduction of 3-5% in electricity consumption. [2,3] Therefore, the development of innovative, ecologically sustainable, and energy-efficient cooling strategies has become a critical challenge all over the world.…”

Section: Introductionmentioning

confidence: 99%

Flexible Photonic Radiative Cooling Films: Fundamentals, Fabrication and Applications

Xie

Xiao

Sun

et al. 2023

Adv Funct Materials

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Photonic structures designed at sub‐wavelength scales have emerged as a promising avenue for various energy applications, including cooling devices, water harvesting, photovoltaics, and personal thermal management, which have significantly transformed the global energy landscape. Particularly, flexible photonic radiative cooling films, which facilitate heat dissipation from surfaces by emitting it into outer space via infrared radiation, have achieved great progress in recent years. In this review, the different approaches used to design photonic structures for manipulating solar reflectance and optimizing thermal emittance are summarized. On this basis, this review discusses advancements in flexible radiative cooling films that have been meticulously adhere to these design principles, alongside their cooling effects over recent years. Furthermore, a comprehensive overview of the progress is presented in the photonic integration with new functionality and the fabrication techniques of photonic structures. Lastly, this review highlights the remarkable potential of radiative coolers in various fields. In prospect, the widespread adoption of flexible photonic radiative cooling films holds immense promise for diverse applications.

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“…[1] From this perspective, eco-friendly building materials for commercial and residential construction have been substantially developed to meet the global consensus of achieving net-zero emissions. Recently, passive radiative cooling has gained attention as an attractive solution to address this challenging issue due to its advantages such as low cost, [2,3] compactness, [4,5] energy efficiency, [6,7] and zero carbon emissions. [8] Passive radiative cooling takes advantage of strong reflectance in the solar spectrum region (0.3-2.5 μm) and high thermal emission in the long-wave infrared region (LWIR; 8-13 μm).…”

Section: Introductionmentioning

confidence: 99%

“…Radiative coolers (RCs) absorb heat from the object and radiatively emit it to the cold outer space (≈3 K) through an LWIR window. The importance of the spectral feature in RCs and the need for mass production have promoted plenty of research related to spectral optimization of RCs, [9][10][11][12] material engineering, [13][14][15][16] affordability, [2,11] and largescale production. [3,17,18] In addition to these features, several researchers have reported that incorporating strong thermal insulation into RCs enhances their thermoregulation characteristics by suppressing heat gain from the surrounding environment.…”

Section: Introductionmentioning

confidence: 99%

Scalable, Patternable Glass‐Infiltrated Ceramic Radiative Coolers for Energy‐Saving Architectural Applications

Jeon

Kim

et al. 2023

Advanced Science

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A huge concern on global climate/energy crises has triggered intense development of radiative coolers (RCs), which are promising green‐cooling technologies. The continuous efforts on RCs have fast‐tracked notable energy‐savings by minimizing solar absorption and maximizing thermal emission. Recently, in addition to spectral optimization, ceramic‐based thermally insulative RCs are reported to improve thermoregulation by suppressing heat gain from the surroundings. However, a high temperature co‐firing process of ceramic‐based thick film inevitably results in a large mismatch of structural parameters between designed and fabricated components, thereby breaking spectral optimization. Here, this article proposes a scalable, non‐shrinkable, patternable, and thermally insulative ceramic RC (SNPT‐RC) using a roll‐to‐roll process, which can fill a vital niche in the field of radiative cooling. A stand‐alone SNPT‐RC exhibits excellent thermal insulation (≈0.251 W m−1 K−1) with flame‐resistivity and high solar reflectance/long‐wave emissivity (≈96% and 92%, respectively). Alternate stacks of intermediate porous alumina/borosilicate (Al2O3‐BS) layers not only result in outstanding thermal and spectral characteristics, causing excellent sub‐ambient cooling (i.e., 7.05 °C cooling), but also non‐shrinkable feature. Moreover, a perforated SNPT‐RC demonstrates its versatility as a breathable radiative cooling shade and as a semi‐transparent window, making it a highly promising technology for practical deployment in energy‐saving architecture.

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Radiative cooling for buildings: A review of techno-enviro-economics and life-cycle assessment methods

Cited by 37 publications

References 114 publications

Ultrafast Switchable Passive Radiative Cooling Smart Windows with Synergistic Optical Modulation

Ultrafast Switchable Passive Radiative Cooling Smart Windows with Synergistic Optical Modulation

Flexible Photonic Radiative Cooling Films: Fundamentals, Fabrication and Applications

Scalable, Patternable Glass‐Infiltrated Ceramic Radiative Coolers for Energy‐Saving Architectural Applications

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