WO2024147413A1 - Fenêtre composite ayant des fonctions de commutation de chaleur et de stockage de chaleur - Google Patents

Fenêtre composite ayant des fonctions de commutation de chaleur et de stockage de chaleur Download PDF

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Publication number
WO2024147413A1
WO2024147413A1 PCT/KR2023/006842 KR2023006842W WO2024147413A1 WO 2024147413 A1 WO2024147413 A1 WO 2024147413A1 KR 2023006842 W KR2023006842 W KR 2023006842W WO 2024147413 A1 WO2024147413 A1 WO 2024147413A1
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WO
WIPO (PCT)
Prior art keywords
layer
composite
window
multilayer graphene
dielectric
Prior art date
Application number
PCT/KR2023/006842
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English (en)
Korean (ko)
Inventor
임미경
김재현
김광섭
김현돈
전성재
전수완
장봉균
이학주
Original Assignee
한국기계연구원
재단법인 파동에너지극한제어연구단
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication of WO2024147413A1 publication Critical patent/WO2024147413A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/26—Reflecting filters
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B2009/2464—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds featuring transparency control by applying voltage, e.g. LCD, electrochromic panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/05—Function characteristic wavelength dependent
    • G02F2203/055—Function characteristic wavelength dependent wavelength filtering

Definitions

  • the present invention relates to a composite window with heat switching and heat storage functions, and more specifically, when applied to a glass window, allows heat switching to control the heat transmittance rate of solar heat while maintaining transparency by transmitting visible light and radiation by sunlight.
  • This relates to a composite window with heat switching and heat storage functions that can store energy and transfer it to the interior when needed.
  • the exterior walls of buildings are mainly constructed with glass windows.
  • these glass windows have a significant impact on building energy consumption, causing energy loss inside the building in the winter, and also causing unnecessary waste of cooling energy as excessive solar energy flows in through the windows in the summer.
  • the technical problem of the present invention was conceived from this point, and the purpose of the present invention is to provide heat switching that controls the heat transmittance of solar heat (an indicator of the degree of thermal insulation between the outside and the inside) while maintaining transparency by transmitting visible light.
  • the aim is to provide a composite window with heat switching and heat storage functions that can improve the energy management efficiency of a building by storing radiant energy from sunlight and transferring it to the interior when necessary.
  • FIGS. 6A to 6D are graphs for explaining the change in emissivity control range and the resulting switching ratio according to the thickness of the first dielectric of FIG. 5B.
  • FIG. 8A is a cross-sectional view showing a composite window according to a fourth embodiment of the present invention
  • FIG. 8B is a cross-sectional view showing the composite window of FIG. 8A in detail.
  • the dielectric 3 is made of a material that is transparent in the visible light region, such as glass, polydimethylsiloxane (PDMS), polyethylene terephthalate (PET), polyimide (PI), polymethyl methacrylate (PMMA), and perylene. It may be included, and if the number of layers of graphene stacked in the multilayer graphene 2 is minimized, the composite structure layer 1 as a whole maintains a state of being transparent to visible light, that is, transmitting visible light. You can.
  • PDMS polydimethylsiloxane
  • PET polyethylene terephthalate
  • PI polyimide
  • PMMA polymethyl methacrylate
  • FIG. 2A is a cross-sectional view showing a composite window according to the first embodiment of the present invention
  • FIG. 2B is a plan view showing an example of the composite window of FIG. 2A
  • FIG. 2C is a view along the line I-I*?* of FIG. 2B. It is a cross-sectional view
  • FIG. 2D is a plan view showing another example of the composite window of FIG. 2A.
  • the second glass window 200 is a glass window facing the outside of the building
  • the first glass window 100 is a glass window facing the inside of the building.
  • the first multilayer graphene 320 has a structure in which the same graphenes as the multilayer graphene 2 described with reference to FIG. 1A are stacked, and the number of stacked graphenes may be, for example, 5 to 20 layers. This means that when the number of graphene stacks in the first multilayer graphene 320 exceeds 20, there may be a problem of not maintaining transparency in the visible light region because the visible light transmittance decreases to 70% or less, 5 This is because, if it is less than a layer, the absolute amount of infrared reflectance control through multilayer graphene is small, so the emissivity control effect may not be significant.
  • the one-side first wiring 331 extends in a direction perpendicular to the longitudinal extension direction of the first multilayer graphene 320, as shown in FIG. 2B, and from this, the first multilayer graphene 320
  • the wiring may be extended through the space between each extension layer of the pin 320.
  • the other first wiring 332 extends in a direction perpendicular to the extension direction of the first multilayer graphene 320 on the opposite side of the one side first wiring 331. 1 It may contact and extend at the end of the multilayer graphene 320, and may extend from this along the space between the first multilayer graphenes 320 and contact the first multilayer graphene 320.
  • the first wiring layer 330 is made of a metal such as gold, silver, copper, etc., and although not shown, a separate power supply unit for forming the electric field may be provided.
  • the first wiring layer 330 may be formed of a transparent electrode such as indium tin oxide (ITO) or graphene.
  • the structure of the first wiring layer 330 may be designed in various ways other than those illustrated in FIGS. 2B and 2D.
  • the first ion gel layer 340 is formed on the first multilayer graphene 320 and the first wiring layer 330, and electrically dopes the first multilayer graphene 320. Therefore, when an electric field is formed between the first multilayer graphene 320 and the first wiring layer 330, the infrared reflectance of the first multilayer graphene 320 can be effectively controlled.
  • This switching ratio ultimately means a range in which the amount of radiant heat transfer between the first and second glass windows 100 and 200 can be varied. As the switching ratio increases, the variable range of the amount of radiant heat transfer increases. This means that energy efficiency improvement through heat transfer control of the composite window can be performed more effectively.
  • the composite window 20 according to this embodiment is one side of the second glass window 200, that is, the side facing the first glass window 100 and located in the middle layer 500. In this way, the second composite structural layer 400 is additionally formed.
  • the second composite structural layer 400 includes a second reflective layer 410 formed on one side of the second glass window 200, and a second absorption layer 420 formed on the second reflective layer 410. Includes.
  • near infrared ray is infrared ray with a wavelength of 700 ⁇ 2,500 nm, which is the shortest wavelength range among infrared rays, and the wavelength range through which solar radiant energy is generally transmitted is 400 ⁇ 700 nm, which is the visible light range.
  • the near-infrared region is included.
  • the first multilayer graphene 320 included in the first composite structure layer 300 As the Fermi level changes (0.1 eV->0.9 eV), the visible light region ( The optical properties remain unchanged in the range (400 ⁇ 700 nm), but the optical properties change in the near-infrared region (700 ⁇ 2,500 nm). That is, the first composite structural layer 300 may absorb near-infrared rays, causing a temperature increase.
  • the heat transmittance rate that is, the heat transfer amount
  • the Fermi level of the first composite structure layer 300 is 0.1 eV, but absorption of near-infrared rays may cause a temperature increase.
  • the second composite structural layer 400 may be formed on the second glass window 200 as in the present embodiment.
  • the TiO 2 /Ag/TiO 2 structure is applied as the structure of the second reflective layer 410, as shown in FIGS. 4B and 4C, the transmissivity and reflection characteristics in the near-infrared region Depending on reflectivity, it can reflect near-infrared rays while transmitting visible light. Meanwhile, the second reflective layer 410 has the property of reflecting mid-infrared rays.
  • the second composite structural layer 400 visible light fully transmits the composite window 20, but near-infrared rays are directly reflected by the second composite structural layer 400 and form the first composite structure. Transmission to the layer 300 is blocked, and therefore, incident into the interior of the composite window 20 is blocked regardless of the Fermi level of the first composite structure layer 300.
  • [Table 2] shows that as the emissivity of the first composite structural layer 300 changes from 0.923 to 0.429, the switching ratio ( This shows an example of switching ratio.
  • the switching ratio which is the ratio of the amount of radiant heat transfer, increases with the emissivity of the second composite structural layer 400. The more you do it, the more it increases.
  • the second composite structural layer 400 includes the second absorption layer 420 that effectively absorbs wavelengths in the mid-infrared region. It is advantageous to include additional
  • the composite window 30 according to the present embodiment is the same as the above-described above, except that the first composite structural layer 301 formed on the first glass window 100 additionally includes a first transparent electrode layer 350. Since it is substantially the same as the composite window 20 according to the second embodiment, the same reference numbers are used for the same components, and overlapping descriptions are omitted.
  • the first transparent electrode layer 350 has a stacked structure of oxide/metal/oxide (OMO) or includes a conductive thin film that is transparent to visible light, such as ITO (Indium Tin Oxide).
  • OMO oxide/metal/oxide
  • ITO Indium Tin Oxide
  • an example of a stacked structure of oxide/metal/oxide may have a TiO 2 /Ag/TiO 2 structure.
  • the first composite structural layer 300 included in the composite windows 10 and 20 in the first and second embodiments described above has an emissivity range according to the Fermi level, as illustrated in FIG. 1B. Control is possible from approximately 0.923 to 0.429.
  • the case where the emissivity control range is 0.4 to 0.1 is more advantageous in terms of the effectiveness of insulation than the case where the emissivity control range is 0.9 to 0.6.
  • the change in emissivity control range and switching ratio according to the thickness of the first dielectric 310 represents a change.
  • the switching ratio can obtain the highest value of 3.14, making the change in the amount of radiant heat transfer of the composite window 30 relatively large. You can control it.
  • the first transparent electrode layer 350 on the first composite structure layer 301 as in the present embodiment, it is possible to relatively improve the thermal insulation effect and obtain a relatively high switching ratio. There will be.
  • FIG. 8A is a cross-sectional view showing a composite window according to a fourth embodiment of the present invention
  • FIG. 8B is a cross-sectional view showing the composite window of FIG. 8A in detail.
  • 'a' is defined as the emissivity of the second side of the second glass window 200 and the second composite structural layer 401 formed thereon
  • 'b' is defined as the emissivity of the first glass window 100 and the second surface of the second composite structural layer 401 formed thereon.
  • control range and maximum and minimum values of the emissivity can be controlled by varying the thickness of the first dielectric 310 and the second dielectric 430, as described above.
  • heat storage is performed when solar energy is absorbed by increasing the absorption of the second multilayer graphene 440, and, if necessary, the first multilayer graphene ( By controlling the emissivity of the first composite structure layer 301 by controlling the Fermi level of 320), the stored heat can be transferred to the inside of the building through the first glass window 100.
  • energy efficiency can be improved by controlling the amount of heat transfer into the building interior as necessary through the control of heat storage and reflection as described above.
  • FIG. 11A is a cross-sectional view showing a composite window according to the sixth embodiment of the present invention
  • FIG. 11B is a cross-sectional view showing the composite window of FIG. 11A in detail.
  • the composite window 60 according to this embodiment further includes the third glass window 600 and the coating layer 610.
  • the coating layer 610 is formed on the third glass window 600, but the coating layer 610 and the outer surface of the second glass window 200 may be arranged to be spaced a predetermined distance apart from each other. . At this time, the space between the coating layer 610 and the second glass window 200 may be filled with air or formed into a vacuum.
  • the heat storage effect that is, heat storage efficiency, of the composite window 50 according to the fifth embodiment may be reduced. Accordingly, as in the present embodiment, the heat storage effect can be further improved by additionally disposing the third glass window 600 on which the coating layer 610 is formed outside the second glass window 200.
  • the space between the second glass window 200 and the third glass window 600 is stored in the second composite structural layer 402. Due to the thermal insulation effect of the coating layer 610, the escape of heat back to the outside is minimized. Thus, the heat storage effect in the second composite structural layer 402 is further improved.
  • the improvement of the heat storage effect through the insulation effect of the composite window 60 according to this embodiment can improve the energy utilization effect, especially when the daily temperature difference between day and night is large, such as in spring or fall.
  • a graphene layer and a dielectric are laminated on one of a pair of glass windows, and the emissivity of infrared rays is controlled while transmitting visible light, thereby increasing the amount of radiative heat transfer between the glass windows.
  • the heat transfer rate between the outside and the inside can be adjusted, and when the difference between the outside temperature and the desired indoor temperature is large, the cooling and heating load can be reduced through insulation, and when the difference between the outside temperature and the desired indoor temperature is small, the outside temperature can be reduced.
  • the cooling and heating load can be reduced.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Nonlinear Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

L'invention concerne une fenêtre composite ayant des fonctions de commutation de chaleur et de stockage de chaleur comprenant : une paire de première et seconde vitres ; et une première couche structurale composite. Les première et seconde vitres sont agencées de manière à se faire face. La première couche structurale composite est formée sur le côté de la première vitre faisant face à la seconde vitre, de telle sorte que la lumière visible est transmise et l'émissivité infrarouge est commandée. Dans ce cas, la première couche structurale composite comprend un premier diélectrique et un premier graphène multicouche empilé sur le premier diélectrique.
PCT/KR2023/006842 2023-01-03 2023-05-19 Fenêtre composite ayant des fonctions de commutation de chaleur et de stockage de chaleur WO2024147413A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020230000573A KR102698975B1 (ko) 2023-01-03 2023-01-03 열 스위칭 및 축열 기능을 가지는 복합 윈도우
KR10-2023-0000573 2023-01-03

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130128336A1 (en) * 2010-04-05 2013-05-23 Kenneth A. Dean Spectrum-modulated smart windows
KR101319263B1 (ko) * 2012-05-22 2013-10-18 전자부품연구원 스마트 윈도우용 그래핀 기반 ｖｏ２ 적층체
KR20140046445A (ko) * 2011-06-30 2014-04-18 유니버시티 오브 플로리다 리서치 파운데이션, 아이엔씨. 가시광 및 ir 조정을 위한 다중 제어식 전기 변색 장치
KR20150061620A (ko) * 2015-05-11 2015-06-04 전자부품연구원 근적외선 차폐 기능을 갖는 복합 광학 필름
KR20190111057A (ko) * 2017-01-10 2019-10-01 유비쿼터스 에너지 인코포레이티드 투명한 윈도우-일체형 광기전력 모듈

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101979659B1 (ko) 2018-11-14 2019-08-30 부강이엔에스 주식회사 건물일체형 태양광·태양열 시스템
KR102301277B1 (ko) 2019-11-15 2021-09-14 한국전자기술연구원 단열 필름 및 그를 포함하는 단열 기판
KR102603047B1 (ko) * 2021-05-25 2023-11-17 한국기계연구원 적외선 적응형 투명 위장막

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130128336A1 (en) * 2010-04-05 2013-05-23 Kenneth A. Dean Spectrum-modulated smart windows
KR20140046445A (ko) * 2011-06-30 2014-04-18 유니버시티 오브 플로리다 리서치 파운데이션, 아이엔씨. 가시광 및 ir 조정을 위한 다중 제어식 전기 변색 장치
KR101319263B1 (ko) * 2012-05-22 2013-10-18 전자부품연구원 스마트 윈도우용 그래핀 기반 ｖｏ２ 적층체
KR20150061620A (ko) * 2015-05-11 2015-06-04 전자부품연구원 근적외선 차폐 기능을 갖는 복합 광학 필름
KR20190111057A (ko) * 2017-01-10 2019-10-01 유비쿼터스 에너지 인코포레이티드 투명한 윈도우-일체형 광기전력 모듈

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KR102698975B1 (ko) 2024-08-27

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