Eliminating greenhouse heat stress with transparent radiative cooling film

Radiative sky cooling thermal concentration with cooling power exceeding one kW per square meter

“…21 Our proof-of-concept study demonstrates the potential for such systems to outperform active cooling systems. These advancements hold the potential to revolutionize the field and significantly enhance the performance of future thermal energy-dense outdoor applications and will yield significant advantages for the future interconnection of energy, water, and food systems 19,20,50 (see Supplementary Note SI.4, ESI †).…”

“…Various use cases demonstrated the versatility of RC materials, including wood, 10 metafabrics, 11 textiles, 12,13 and polymers, 14,15 for various applications, such as water cooling, 16,17 protecting ice from melting 18 and agriculture. 19,20 These materials can achieve B100 W m À2 cooling power density (Fig. 2(a)), an order of magnitude lower than the terrestrial solar irradiation of B1000 W m À2 .…”

Advancing Sustainable Development: Broad Applications of Passive Radiative Cooling

“…Liu et al [112] fabricated a monolayer film through co-extrusion molding, incorporating PE with UV stabilizers and metal oxide particles. This innovative material composition realized a temperature reduction of 2.2 • C in an ambient environment of 35 • C. Advancing the practical application of this design principle, Zou et al [113] engineered a novel transparent radiative cooling film by synthesizing PE terephthalate (PET) with silver (Ag) nanoparticles (shown in Figure 7b). In comparative experiments with traditional polyolefin (PO) films, it was observed that the deployment of the proposed film within greenhouses led to an increase of approximately 20% in the productivity of three crop varieties: Chinese cabbage, pakchoi, and cherry radish.…”

Challenges and Optimization of Building-Integrated Photovoltaics (BIPV) Windows: A Review

“…Another benefit is that the thermal management of PV panels using sky radiant cooling materials can maintain sufficient electrical efficiency of the PV system due to temperature coefficients [87]. It is critical to note that the application of sky radiative cooling technology in translucent building envelopes requires the design and fabrication of metamaterials in conjunction with specific building scenarios, taking into account the need for the creation of the building's indoor environment (thermal comfort for occupants, improving crop yields [88], etc.) and the climate characteristics (precipitation throughout the year, cloud cover, etc.).…”