Ventilated window for indoor air quality improvement in buildings
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F24F-007/013
E06B-007/02
E06B-007/10
출원번호
UP-0775281
(2007-07-10)
등록번호
US-7641545
(2010-02-11)
발명자
/ 주소
Chen, Qingyan
Paige, Jennifer R.
출원인 / 주소
Purdue Research Foundation
대리인 / 주소
Hartman & Hartman, P.C.
인용정보
피인용 횟수 :
5인용 특허 :
9
초록▼
An airflow window system that includes at least three glazing layers positioned roughly parallel to each other to define at least two internal airflow cavities within the window system. A first of the glazing layers is adjacent a first of the airflow cavities, a second of the glazing layers is adjac
An airflow window system that includes at least three glazing layers positioned roughly parallel to each other to define at least two internal airflow cavities within the window system. A first of the glazing layers is adjacent a first of the airflow cavities, a second of the glazing layers is adjacent a second of the airflow cavities, and a center glazing layer is between the first and second glazing layers and separates the first and second airflow cavities. Airflow cavity openings are located adjacent the uppermost and lowermost extents of each airflow cavity, and airflow is enabled through the first airflow cavity between the openings thereof and enabled through the second airflow cavity between the openings thereof. The window system operates as a crossflow heat exchanger capable of supplying fresh outdoor air to an enclosed indoor space, while thermally tempering the incoming fresh air with outgoing indoor air.
대표청구항▼
The invention claimed is: 1. An airflow window system adapted for vertical installation in a structure having an indoor space and surrounded by an outdoor space, the airflow window system comprising: at least three glazing layers positioned roughly parallel to each other to define at least inner an
The invention claimed is: 1. An airflow window system adapted for vertical installation in a structure having an indoor space and surrounded by an outdoor space, the airflow window system comprising: at least three glazing layers positioned roughly parallel to each other to define at least inner and outer airflow cavities within the airflow window system, the inner airflow cavity being closer to the indoor space than the outer airflow cavity, a first glazing layer of the three glazing layer being an outer glazing layer adjacent the outer airflow cavity and adapted for installation adjacent the outdoor space, a second glazing layer of the three glazing layers being an inner glazing layer adjacent the inner airflow cavity and adapted for installation adjacent the indoor space, and a center glazing layer of the three glazing layers being between the inner and outer glazing layers and separating the inner and outer airflow cavities; airflow cavity openings adjacent uppermost and lowermost extents of each of the inner and outer airflow cavities; and means for enabling airflow from the indoor space through the inner airflow cavity between the airflow cavity openings thereof and for simultaneously enabling airflow from the outdoor space through the outer airflow cavity between the airflow cavity openings thereof; wherein the airflow window system is adapted to operate in a supply mode in which air from the indoor space flows downward through the inner airflow cavity and air from the indoor space flows upward through the outer airflow cavity, and is also adapted to operate in an exhaust mode in which air from the indoor space flows upward through the inner airflow cavity and air from the outdoor space flows downward through the outer airflow cavity; wherein the airflow through the inner airflow cavity acts to stabilize a temperature of the inner glazing layer at a temperature closer to an indoor air temperature than an outdoor air temperature. 2. The airflow window system according to claim 1, wherein the center glazing layer is not a double-glazed insulated unit. 3. The airflow window system according to claim 1, wherein the center glazing layer is more thermally conductive than the inner and outer glazing layers. 4. The airflow window system according to claim 1, wherein the airflow enabling means comprises doors located at the airflow cavity openings of the inner and outer airflow cavities. 5. The airflow window system according to claim 1, wherein the airflow enabling means does not comprise a fan and relies solely on natural convection within the inner and outer airflow cavities. 6. The airflow window system according to claim 1, wherein the airflow enabling means comprises a fan located at at least one of the airflow cavity openings of the inner and outer airflow cavities. 7. The airflow window system according to claim 6, wherein the fan forces air through the at least one of the airflow cavity openings at a rate of about 15 liters/second or less. 8. The airflow window system according to claim 6, wherein the fan forces air through the at least one of the airflow cavity openings at a rate of about 10 liters/second or less. 9. The airflow window system according to claim 1, wherein each of the inner and outer airflow cavities has a width transverse to the airflow therethrough of about 15 millimeters or less. 10. The airflow window system according to claim 1, wherein each of the inner and outer airflow cavities has a width transverse to the airflow therethrough of about 12 millimeters or less. 11. The airflow window system according to claim 1, wherein the airflow window system has oppositely-disposed first and second lateral extents, a first airflow cavity opening of the airflow cavity openings is at the lowermost extent of the outer airflow cavity and adjacent the first lateral extent, a second airflow cavity opening of the airflow cavity openings is at the uppermost extent of the outer airflow cavity and adjacent the second lateral extent, a third airflow cavity opening of the airflow cavity openings is at the uppermost extent of the inner airflow cavity and adjacent the first lateral extent, and a fourth airflow cavity opening of the airflow cavity openings is at the lowermost extent of the inner airflow cavity and adjacent the second lateral extent. 12. The airflow window system according to claim 11, wherein the airflow through the outer airflow cavity is generally diagonal between the first and second airflow cavity openings, and the airflow through the inner airflow cavity is generally diagonal between the third and fourth airflow cavity openings. 13. The airflow window system according to claim 12, wherein the airflow through the outer airflow cavity is generally diagonally upward from the inner airflow cavity opening to the second airflow cavity opening, and the airflow through the inner airflow cavity is generally diagonally downward from the third airflow cavity opening to the fourth airflow cavity opening. 14. The airflow window system according to claim 12, wherein the airflow through the outer airflow cavity is generally diagonally downward from the second airflow cavity opening to the first airflow cavity opening, and the airflow through the inner airflow cavity is generally diagonally upward from the fourth airflow cavity opening to the third airflow cavity opening. 15. The airflow window system according to claim 1, wherein the airflow window system is configured to be rotatble about a central vertical axis thereof. 16. The airflow window system according to claim 1, further comprising louvers within the outer airflow cavity. 17. An airflow window system installed to have a vertical orientation in a structure having an indoor space and surrounded by an outdoor space, the airflow window system comprising: inner, center, and outer window panes positioned roughly parallel to each other to define inner and outer airflow cavities within the airflow window system, the outer window pane being between the outdoor space and the outer airflow cavity, the inner window pane being between the indoor space and the inner airflow cavity, and the center window pane being between the inner and outer window panes and separating the inner and outer airflow cavities; first and second airflow cavity openings adjacent, respectively, uppermost and lowermost extents of the outer airflow cavity; third and fourth airflow cavity openings adjacent, respectively, uppermost and lowermost extents of the inner airflow cavity; and means for enabling the airflow window system to operate in a supply mode in which airflow occurs from the outdoor space to the indoor space by entering through the second airflow cavity opening, flowing generally diagonally upward through the outer airflow cavity, and exiting through the first airflow cavity opening, and airflow occurs from the indoor space to the outdoor space by entering through the third airflow cavity opening, flowing generally diagonally downward through the inner airflow cavity, and exiting through the fourth airflow cavity opening; wherein the airflow through the inner airflow cavity acts to stabilize a temperature of the inner window pane at a temperature closer to an indoor air temperature than an outdoor air temperature. 18. The airflow window system according to claim 17, wherein the airflow enabling means comprises a fan and/or doors located at the airflow cavity openings of the inner and outer airflow cavities. 19. An airflow window system installed to have a vertical orientation in a structure having an indoor space and surrounded by an outdoor space, the airflow window system comprising: inner, center, and outer window panes positioned roughly parallel to each other to define inner and outer airflow cavities within the airflow window system, the outer window pane being between the outdoor space and the outer airflow cavity, the inner window pane being between the indoor space and the inner airflow cavity, and the center window pane being between the inner and outer window panes and separating the inner and outer airflow cavities; first and second airflow cavity openings adjacent, respectively, uppermost and lowermost extents of the outer airflow cavity; third and fourth airflow cavity openings adjacent, respectively, uppermost and lowermost extents of the inner airflow cavity; and means for enabling the airflow window system to operate in an exhaust mode in which airflow occurs from the outdoor space to the indoor space by entering through the first airflow cavity opening, flowing generally diagonally downward through the outer airflow cavity, and exiting through the second airflow cavity opening, and airflow occurs from the indoor space to the outdoor space by entering through the fourth airflow cavity opening, flowing generally diagonally upward through the inner airflow cavity, and exiting through the third airflow cavity opening; wherein the airflow through the inner airflow cavity acts to stabilize a temperature of the inner window pane at a temperature closer to an indoor air temperature than an outdoor air temperature. 20. The airflow window system according to claim 19, wherein the airflow enabling means comprises a fan and/or doors located at the airflow cavity openings of the inner and outer airflow cavities.
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