Enabling Renewable Energy Technologies in Harsh Climates with Ultra-Efficient Electro-Thermal Desnowing, Defrosting, and Deicing

Longnan Li; Siavash Khodakarami; Xiao YanKazi Fazle RabbiAhmet Alperen GunayAndrew StillwellNenad Miljkovic

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Enabling Renewable Energy Technologies in Harsh Climates with Ultra-Efficient Electro-Thermal Desnowing, Defrosting, and Deicing

机译：Enabling Renewable Energy Technologies in Harsh Climates with Ultra-Efficient Electro-Thermal Desnowing, Defrosting, and Deicing

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The rapid anthropomorphic emission of greenhouse gases is contributing toglobal climate change, resulting in the increased frequency of extreme weatherevents, including unexpected snow, frost, and ice accretion in warmer regionsthat typically do not encounter these conditions. Adverse weather eventscreate challenges for energy systems such as wind turbines and photovoltaics.To maintain energy efficiently and operational fidelity, snow, frost, and iceneed to be removed efficiently and rapidly. State-of-the-art removal methodsare energy-intensive (energy density > 30 J cm~(?2)) and slow (>1 min). Here,pulsed Joule heating is developed on transparent self-cleaning interfaces,demonstrating interfacial desnowing, defrosting, and deicing with energy efficiency(energy density < 10 J cm~(?2)) and rapidity (≈1 s) beyond what is currentlyavailable. The transparency and self-cleaning are tailored to remove both snowand dust while ensuring minimal interference with optical light absorption. Itis experimentally demonstrated a multi-functional coating material on a commercialphotovoltaic cell, demonstrating efficient energy generation recoveryand rapid ice/snow removal with minimal energy consumption. Through theelimination of accretion, this technology can potentially widen the applicabilityof photovoltaics and wind technologies to globally promising locations, potentiallyfurther reducing greenhouse gas emissions and global climate change.

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来源
《Advanced functional materials》 |2022年第31期|2201521.1-2201521.12|共12页
作者
Longnan Li; Siavash Khodakarami; Xiao YanKazi Fazle RabbiAhmet Alperen GunayAndrew StillwellNenad Miljkovic;
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作者单位

Mechanical Science and EngineeringUniversity of Illinois at Urbana-ChampaignUrbana, IL 61801, USA;

Electrical and Computer EngineeringUniversity of Illinois at Urbana-ChampaignUrbana, IL 61801, USA;

Mechanical Science and EngineeringUniversity of Illinois at Urbana-ChampaignUrbana, IL 61801, USA,Electrical and Computer EngineeringUniversity of Illinois at Urbana-ChampaignUrbana, IL 61801, USA,Materials Research LaboratoryUniversity of Illinois at UrbMechanical Science and EngineeringUniversity of Illinois at Urbana-ChampaignUrbana, IL 61801, USA,GPL Photonics LabState Key Laboratory of Applied OpticsChangchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033, Ch;

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正文语种英语
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defrosting; deicing; desnowing; photovoltaic; pulsed Joule heating; selfcleaning; superhydrophobic; transparent;

Enabling Renewable Energy Technologies in Harsh Climates with Ultra-Efficient Electro-Thermal Desnowing, Defrosting, and Deicing

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