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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Institue of Optics and Electronics, Chinese Academy of Sciences
2021-05-01
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Online Access: | http://www.oejournal.org/article/doi/10.29026/oea.2021.200006 |
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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 |
_version_ |
1721177810714755072 |