Switchable diurnal radiative cooling by doped VO2

This paper presents design and simulation of a switchable radiative cooler that exploits phase transition in vanadium dioxide to turn on and off in response to temperature. The cooler consists of an emitter and a solar reflector separated by a spacer. The emitter and the reflector play a role of emi...

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Main Authors: Minkyung Kim, Dasol Lee, Younghwan Yang, Junsuk Rho
Format: Article
Language:English
Published: Institue of Optics and Electronics, Chinese Academy of Sciences 2021-05-01
Series:Opto-Electronic Advances
Subjects:
Online Access:http://www.oejournal.org/article/doi/10.29026/oea.2021.200006
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spelling doaj-f29ff3157df844c4b71250e2208ccd3f2021-09-02T08:23:20ZengInstitue of Optics and Electronics, Chinese Academy of SciencesOpto-Electronic Advances2096-45792021-05-01451710.29026/oea.2021.200006oea-2020-0006-JunsukSwitchable diurnal radiative cooling by doped VO2Minkyung Kim0Dasol Lee1Younghwan Yang2Junsuk Rho3Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of KoreaDepartment of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of KoreaDepartment of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of KoreaDepartment of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of KoreaThis paper presents design and simulation of a switchable radiative cooler that exploits phase transition in vanadium dioxide to turn on and off in response to temperature. The cooler consists of an emitter and a solar reflector separated by a spacer. The emitter and the reflector play a role of emitting energy in mid-infrared and blocking incoming solar energy in ultraviolet to near-infrared regime, respectively. Because of the phase transition of doped vanadium dioxide at room temperature, the emitter radiates its thermal energy only when the temperature is above the phase transition temperature. The feasibility of cooling is simulated using real outdoor conditions. We confirme that the switchable cooler can keep a desired temperature, despite change in environmental conditions.http://www.oejournal.org/article/doi/10.29026/oea.2021.200006phase change materialphotonic crystalpassive thermoregulationswitchable radiative coolingfabry-pérot resonance
collection DOAJ
language English
format Article
sources DOAJ
author Minkyung Kim
Dasol Lee
Younghwan Yang
Junsuk Rho
spellingShingle Minkyung Kim
Dasol Lee
Younghwan Yang
Junsuk Rho
Switchable diurnal radiative cooling by doped VO2
Opto-Electronic Advances
phase change material
photonic crystal
passive thermoregulation
switchable radiative cooling
fabry-pérot resonance
author_facet Minkyung Kim
Dasol Lee
Younghwan Yang
Junsuk Rho
author_sort Minkyung Kim
title Switchable diurnal radiative cooling by doped VO2
title_short Switchable diurnal radiative cooling by doped VO2
title_full Switchable diurnal radiative cooling by doped VO2
title_fullStr Switchable diurnal radiative cooling by doped VO2
title_full_unstemmed Switchable diurnal radiative cooling by doped VO2
title_sort switchable diurnal radiative cooling by doped vo2
publisher Institue of Optics and Electronics, Chinese Academy of Sciences
series Opto-Electronic Advances
issn 2096-4579
publishDate 2021-05-01
description This paper presents design and simulation of a switchable radiative cooler that exploits phase transition in vanadium dioxide to turn on and off in response to temperature. The cooler consists of an emitter and a solar reflector separated by a spacer. The emitter and the reflector play a role of emitting energy in mid-infrared and blocking incoming solar energy in ultraviolet to near-infrared regime, respectively. Because of the phase transition of doped vanadium dioxide at room temperature, the emitter radiates its thermal energy only when the temperature is above the phase transition temperature. The feasibility of cooling is simulated using real outdoor conditions. We confirme that the switchable cooler can keep a desired temperature, despite change in environmental conditions.
topic phase change material
photonic crystal
passive thermoregulation
switchable radiative cooling
fabry-pérot resonance
url http://www.oejournal.org/article/doi/10.29026/oea.2021.200006
work_keys_str_mv AT minkyungkim switchablediurnalradiativecoolingbydopedvo2
AT dasollee switchablediurnalradiativecoolingbydopedvo2
AT younghwanyang switchablediurnalradiativecoolingbydopedvo2
AT junsukrho switchablediurnalradiativecoolingbydopedvo2
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