High‐performance and wide relative humidity passive evaporative cooling utilizing atmospheric water

Guang, Wang; Li, Yang; Qiu, Huihe; Yan, He; Zhou, Yanguang

doi:10.1002/dro2.32

Cited by 16 publications

(2 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The concept of REC-SW introduces a novel strategy by utilizing hydrogels to create semi-solid water sources, where water molecules are confined within organic molecular chains and sorbents [60,61]. This approach offers unique advantages such as flexibility in system design, multifunctionality, lightweight, and compactness when compared to other cooling systems.…”

Section: Rec By Sorbed Watermentioning

confidence: 99%

Radiative-coupled evaporative cooling: Fundamentals, development, and applications

Yu,

Huang,

et al. 2024

Nano Research Energy

View full text Add to dashboard Cite

As global energy demand continues to rise and climate change accelerates, the need for sustainable and energy-efficient cooling solutions has reached a critical level. Conventional air conditioning systems heavily rely on energy-intensive mechanical cooling, which significantly contributes to both electricity demand and greenhouse gas emissions. Passive cooling strategies, particularly radiative cooling (RC) and evaporative cooling (EC), present an alternative approach by harnessing natural processes for temperature regulation. While standalone RC can be affected by weather conditions and EC relies on water availability, Radiative-coupled EC (REC) offers a versatile and sustainable cooling solution suitable for various applications. Here we summarize an overview of the theoretical foundations and mathematical models of REC, encompassing REC by bulk water (REC-BW), REC by perspiration (REC-P), and REC by sorbed water (REC-SW). Moreover, we explore a range of applications, spanning from industrial processes to personal thermal management, and examine the advantages and challenges associated with each REC approach. The significance of REC lies in its potential to revolutionize cooling technology, reduce energy consumption, and minimize the environmental impact. REC-BW can conserve water resources in industrial cooling processes, while REC-P offers innovative solutions for wearable electronics and textiles. REC-SW's adaptability makes it suitable for food preservation and future potable cooling devices. By addressing the challenges posed by REC, including water consumption, textile design, and optimization of bilayer structures, we can unlock the transformative potential of REC and contribute to sustainable cooling technologies in a warming world.

show abstract

Section: Rec By Sorbed Watermentioning

confidence: 99%

Radiative-coupled evaporative cooling: Fundamentals, development, and applications

Yu,

Huang,

et al. 2024

Nano Research Energy

View full text Add to dashboard Cite

show abstract

“…Recently, Zeng and Lee [248] fabricated a liquidcooled microfluidic heat sink being optimized by using a 3D CFD simulation to achieve a reliable and energy-efficient cooling process (figure 10(h)). Besides, Wang et al [249] proposed a solar-powered cooling coating that exhibits remarkable cooling capabilities utilizing atmospheric water.…”

Section: Heat Sinkmentioning

confidence: 99%

Functional microfluidics: theory, microfabrication, and applications

Xie,

Zhan,

et al. 2024

Int. J. Extrem. Manuf.

View full text Add to dashboard Cite

Microfluidic devices are composed of microchannels with a diameter ranging in ten to a few hundred micrometers. Thus, quite small (10-9 to 10-18 litres) amount of liquid can be manipulated by such a precise system. In the past three decades, significant progresses in materials, microfabrication, and various applications have boosted the development of promising functional microfluidic devices. In this review, the recent progresses on novel microfluidic devices with various functions and applications are presented. First, the theory and numerical methods for studying the performance of microfluidic devices are briefly introduced. Then, materials, and fabrication methods of functional microfluidic devices are summarized. Next, from the viewpoint of the applications of the microfluidic devices, the recent significant advances in heat sink, clean water production, chemical reactions, sensor, biomedical field, capillaric circuits, flexible and wearable electronic devices, microrobotics, etc., in turns are then highlighted. Finally, personal perspectives on the challenges and future developments of functional microfluidic devices, aiming to motivate researchers from the fields of engineering, materials, chemistry, mathematics, physics, etc. working together to promote further development and applications of functional microfluidic devices, for the specific purpose of carbon neutrality are provided.

show abstract

Bioinspired Metafabric with Dual‐Gradient Janus Design for Personal Radiative and Evaporative Cooling

Yan,

Zhu,

Fan

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

Personal radiative cooling fabrics are a promising zero‐energy solution for creating a cool and comfortable microclimate for outdoor crowds. Despite significant progress, achieving efficient radiative cooling under some extreme situations, such as thermal shock and intensive physical activity, remains a challenge. Herein, a bioinspired metafabric with a dual‐gradient Janus design is reported for personal radiative and evaporative cooling. The hierarchical fiber structure allows for an excellent solar reflectance of 99.4% and mid‐infrared emittance of 0.94, inducing a skin temperature drop of 17.8 °C under intense sunlight. Mesoporous silica nanoparticles fixed in the fibrous network can store evaporative cooling capacity by atmospheric moisture‐absorption in the mild and humid nighttime and release such cooling capacity by moisture‐desorption in the hot daytime, providing an additional skin temperature drop of 2.5 °C. Dual‐gradient Janus design endows the metafabric with an outstanding sweat‐wicking effect and high‐performance sweat evaporative cooling capacity. In the steady‐state evaporation tests, a maximum sweat consumption of only 0.5 ml h−1 can cool the skin to a comfortable temperature, preventing harmful excessive sweating. Additionally, the bioinspired metafabric also possesses favorable wearability and color expansibility. Given these first‐rate features, the bioinspired metafabric will pave the way for the development of advanced functional fabrics.

show abstract

High‐performance and wide relative humidity passive evaporative cooling utilizing atmospheric water

Cited by 16 publications

References 49 publications

Radiative-coupled evaporative cooling: Fundamentals, development, and applications

Radiative-coupled evaporative cooling: Fundamentals, development, and applications

Functional microfluidics: theory, microfabrication, and applications

Bioinspired Metafabric with Dual‐Gradient Janus Design for Personal Radiative and Evaporative Cooling

Contact Info

Product

Resources

About