JP2002194826A - Natural ventilation system for building - Google Patents
Natural ventilation system for buildingInfo
- Publication number
- JP2002194826A JP2002194826A JP2000397500A JP2000397500A JP2002194826A JP 2002194826 A JP2002194826 A JP 2002194826A JP 2000397500 A JP2000397500 A JP 2000397500A JP 2000397500 A JP2000397500 A JP 2000397500A JP 2002194826 A JP2002194826 A JP 2002194826A
- Authority
- JP
- Japan
- Prior art keywords
- vertical shaft
- building
- wall
- solar radiation
- natural ventilation
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Building Environments (AREA)
- Duct Arrangements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、竪シャフト（ボイ
ドシャフト）を利用して建物内部の換気を行う建物の自
然換気システムに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a natural ventilation system for a building in which a vertical shaft (void shaft) is used to perform ventilation inside the building.
【０００２】[0002]
【従来の技術】一般に、換気用の竪シャフトを備えた建
物においては、建物平面の中央部に当該竪シャフトを設
け、空調機などによって取り入れた外気を、竪シャフト
の煙突効果によって、最上部の換気口から屋外に排出す
ることにより各部屋の換気を行っている。2. Description of the Related Art Generally, in a building provided with a vertical shaft for ventilation, the vertical shaft is provided at the center of the building plane, and the outside air taken in by an air conditioner or the like is taken up by the chimney effect of the vertical shaft. Each room is ventilated by discharging the air outside through the ventilation openings.
【０００３】[0003]
【発明が解決しようとする課題】ところで、竪シャフト
の排気能力は、その垂直高さと、竪シャフト内外の空気
の温度差とに依存するが、従来の建物では、竪シャフト
を、日射の届かない建物平面の中央部に主に設けていた
ため、竪シャフト内部の温度が各部屋の温度とほぼ同じ
程度に低く、従って、竪シャフト内外の空気の温度差が
あまり開かないために、大きな煙突効果が期待できず、
換気能力があまり高くなかった。The exhaust capacity of a vertical shaft depends on its vertical height and the temperature difference between the air inside and outside the vertical shaft. In a conventional building, however, the vertical shaft cannot be exposed to solar radiation. Mainly in the center of the building plane, the temperature inside the vertical shaft is almost as low as the temperature in each room.Therefore, the temperature difference between the air inside and outside the vertical shaft does not open so much that a large chimney effect is produced. I can not expect it,
The ventilation capacity was not so high.
【０００４】そこで、換気能力を高めるために、竪シャ
フトの断面形状を大きくして、空気の流通経路の抵抗を
減らすことが考えられるが、そうすると、建物の総床面
積に対する居住部分の床面積の比率が下がる等の別のデ
メリットを生じるおそれがあった。In order to increase the ventilation capacity, it is conceivable to increase the cross-sectional shape of the vertical shaft to reduce the resistance of the air flow path. However, in this case, the floor area of the living part relative to the total floor area of the building is considered. There is a possibility that another disadvantage such as a decrease in the ratio may occur.
【０００５】本発明は、かかる事情に鑑みてなされたも
ので、竪シャフトの煙突効果を高めて、竪シャフトの断
面形状を大きくしないでも、自然換気能力を増大させる
ことができ、それにより、空調コストの削減を図れるよ
うにした建物の自然換気システムを提供することを目的
とするものである。The present invention has been made in view of the above circumstances, and it is possible to increase the chimney effect of a vertical shaft and increase the natural ventilation capacity without increasing the cross-sectional shape of the vertical shaft. It is an object of the present invention to provide a natural ventilation system for a building capable of reducing costs.
【０００６】[0006]
【課題を解決するための手段】請求項１に記載の発明に
係る建物の自然換気システムは、太陽からの日射を受け
る建物の外壁部に、上端に換気口を有する換気用の竪シ
ャフトを設け、この竪シャフトの周壁を、日射の透過す
る透明壁と、透過した日射を吸収して竪シャフト内の空
気温度を上昇させる蓄熱壁とで構成し、この竪シャフト
の内部に、外気取入口を備えた建物本体の排気通路を連
通させたことを特徴とするものである。According to the first aspect of the present invention, there is provided a natural ventilation system for a building, wherein a vertical shaft for ventilation having a ventilation port at an upper end is provided on an outer wall of the building which receives solar radiation from the sun. The peripheral wall of the vertical shaft is composed of a transparent wall through which solar radiation penetrates, and a heat storage wall which absorbs the transmitted solar radiation and raises the temperature of the air inside the vertical shaft, and an outside air intake is provided inside the vertical shaft. The exhaust passage of the main body of the building provided is connected.
【０００７】この発明では、竪シャフトの周壁の一部を
構成する蓄熱壁が、日射を吸収して竪シャフト内の空気
温度を上昇させるので、竪シャフト内に大きな上昇気流
が作り出される。従って、竪シャフトの煙突効果によ
り、竪シャフトの内部に連通する排気通路から、建物本
体の各部屋の空気が吸い出され、それに伴って、外気取
入口から建物本体の各部屋に新鮮な外気が導入される。
このように、太陽熱を利用して積極的に建物内の換気が
行われるので、特に中間期の空調コストが削減できる。In the present invention, the heat storage wall constituting a part of the peripheral wall of the vertical shaft absorbs solar radiation and raises the air temperature in the vertical shaft, so that a large upward airflow is created in the vertical shaft. Therefore, due to the chimney effect of the vertical shaft, air in each room of the building body is sucked out from an exhaust passage communicating with the inside of the vertical shaft, and accordingly, fresh outside air is introduced into each room of the building body from the outside air intake. be introduced.
As described above, the ventilation in the building is positively performed by using the solar heat, so that the air conditioning cost in the middle period can be reduced.
【０００８】ここで、建物本体の北側に、上記外気取入
口に連通する竪シャフトを設ければ一層好ましく、さら
に蓄熱壁としては、日射の当たる内表面を吸熱性の高い
濃色とした、熱容量の大きいコンクリート壁で構成する
のが望ましい。また、透明壁はガラス、アクリル、ポリ
カーボネート等の材料で構成することができる。[0008] Here, it is more preferable to provide a vertical shaft communicating with the outside air intake on the north side of the building main body. It is desirable to use a large concrete wall. Further, the transparent wall can be made of a material such as glass, acrylic, or polycarbonate.
【０００９】また、請求項２に記載の発明は、請求項１
に記載の発明において、上記透明壁の外側に、太陽高度
に応じて角度調整が可能とされ且つ太陽からの日射を蓄
熱壁に向けて反射する可動反射板を設けたことを特徴と
するものである。The invention described in claim 2 is the first invention.
In the invention described in (1), a movable reflecting plate is provided outside the transparent wall, the angle of which can be adjusted according to the altitude of the sun, and which reflects solar radiation from the sun toward the heat storage wall. is there.
【００１０】この発明によれば、太陽高度に追従して可
動反射板の角度を変化させることで、太陽熱を最大限蓄
熱壁に蓄えることができ、竪シャフト内に大きな上昇気
流を作り出すことができて、自然換気能力を高めること
ができる。According to the present invention, by changing the angle of the movable reflector in accordance with the altitude of the sun, solar heat can be stored in the heat storage wall to the maximum and a large updraft can be generated in the vertical shaft. The natural ventilation capacity can be increased.
【００１１】さらに、請求項３に記載の発明は、請求項
２に記載の発明において、上記可動反射板の反射面の下
側に断熱層を設けたことを特徴とするものである。Further, the invention according to claim 3 is characterized in that, in the invention according to claim 2, a heat insulating layer is provided below the reflecting surface of the movable reflecting plate.
【００１２】請求項３に記載の発明によれば、可動反射
板に断熱層を設けたので、日射がなく外気温度が空調温
度より低い時や夜間時は、可動反射板を閉じた位置に調
整することにより、蓄熱壁からの熱放射をできるだけ遮
断することができ、竪シャフト内の空気を冷やさないよ
うにすることができる。According to the third aspect of the present invention, since the heat insulating layer is provided on the movable reflector, the movable reflector is adjusted to the closed position when there is no sunlight and the outside air temperature is lower than the air conditioning temperature or at night. By doing so, heat radiation from the heat storage wall can be cut off as much as possible, and the air in the vertical shaft can be prevented from being cooled.
【００１３】ここで、請求項２および請求項３における
可動反射板は、透明壁に開口部を設けて、その開口部を
開閉するシャッタ板として構成することもできるし、開
口部を設けないで、透明壁の外側に二重壁のように設け
ることもできる。前者の場合は、日射のない時間帯（夜
間など）に可動反射板を閉じた位置に調整することで、
竪シャフト内の暖かい空気をできるだけ外に逃がさない
ようにすることができる。Here, the movable reflection plate according to the second and third aspects may be provided with an opening in the transparent wall and configured as a shutter plate for opening and closing the opening, or without providing the opening. Alternatively, a double wall may be provided outside the transparent wall. In the former case, by adjusting the movable reflector to the closed position during periods when there is no sunlight (such as at night)
It is possible to prevent the warm air in the vertical shaft from escaping outside as much as possible.
【００１４】[0014]
【発明の実施の形態】以下、本発明の実施形態を図面に
基づいて説明する。図１は、本実施形態の自然換気シス
テムを適用した中層建物の断面図であり、この建物１
は、建物本体２と、太陽からの日射Ｔを受ける建物南面
の外壁部に設けられた竪シャフト３とから概略構成され
ている。竪シャフト３は、角筒状の周壁によって構成さ
れ、その最上端は屋根５で塞がれ、屋根５の下側には自
然風Ｆの通過可能な換気口６が設けられている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a middle-rise building to which a natural ventilation system according to the present embodiment is applied.
Is roughly composed of a building body 2 and a vertical shaft 3 provided on an outer wall portion on the south side of the building which receives solar radiation T from the sun. The vertical shaft 3 is constituted by a rectangular cylindrical peripheral wall, and the top end thereof is closed by a roof 5, and a ventilation port 6 through which natural wind F can pass is provided below the roof 5.
【００１５】竪シャフト３の周壁は、東南西の３面が日
射の透過する透明壁８で構成され、建物本体２の外壁と
一体化された北側の１面が、透過した日射Ｔを吸収して
竪シャフト３内の空気温度を上昇させる蓄熱壁７で構成
されている。蓄熱壁７は、図２に示すように、透明壁８
を透過した日射Ｔの当たる内表面７ａを吸熱性の高い濃
色（例えば、艶消しの黒色）とした、熱容量の大きいコ
ンクリート壁で構成されている。また、蓄熱壁７の背後
には断熱材９が積層されている。透明壁８はガラス、ア
クリル、ポリカーボネート等の透明な材料で構成されて
いる。The peripheral wall of the vertical shaft 3 has three transparent walls 8 on the east-south-west side, through which solar radiation penetrates, and one northern surface integrated with the outer wall of the building body 2 absorbs the transmitted solar radiation T. And a heat storage wall 7 for raising the air temperature in the vertical shaft 3. The heat storage wall 7 is, as shown in FIG.
Is made of a concrete wall having a large heat capacity and having a deep color (for example, matte black) having a high endothermic property on the inner surface 7a exposed to the solar radiation T that has passed through. Further, a heat insulating material 9 is laminated behind the heat storage wall 7. The transparent wall 8 is made of a transparent material such as glass, acrylic, and polycarbonate.
【００１６】一方、建物本体２の各階には、各部屋２１
に対して外気を導入・排出するための給気通路２２と排
気通路２３とが設けられている。給気通路２２は、建物
本体２の北側外壁に設けた外気取入口２４を通して屋外
に連通し、排気通路２３は、蓄熱壁７に形成した開口２
５を通して竪シャフト３の内部に連通している。On the other hand, on each floor of the building body 2, each room 21
An air supply passage 22 and an exhaust passage 23 for introducing and discharging outside air are provided. The air supply passage 22 communicates with the outside through an outside air intake 24 provided on the north outer wall of the building body 2, and the exhaust passage 23 communicates with the opening 2 formed in the heat storage wall 7.
5 communicates with the inside of the vertical shaft 3.
【００１７】次に、上記構成からなる自然換気システム
の作用について説明する。太陽からの日射Ｔがある場
合、竪シャフト３の透明壁８を通して日射Ｔが蓄熱壁７
に当たることにより、蓄熱壁７が暖められて、蓄熱壁７
の温度が高まる。蓄熱壁７の温度が高まると、その熱に
より竪シャフト３内の空気が暖められて、竪シャフト３
内に大きな上昇気流Ｕが作り出される。それにより、竪
シャフト３の煙突効果で、竪シャフト３の内部に連通す
る排気通路２３から、建物本体２の各部屋２１の空気が
吸い出され、それに伴って、外気取入口２４から建物本
体２の各部屋２１に新鮮な外気が導入され、太陽熱を利
用した積極的な無動力の自然換気（矢印Ｖで示す空気の
流れ）が行われる。従って、特に中間期には、無動力で
外気冷房を行うことができて、空調コストを削減でき
る。Next, the operation of the natural ventilation system having the above configuration will be described. When there is solar radiation T from the sun, the solar radiation T is transmitted through the transparent wall 8 of the vertical shaft 3 to the heat storage wall 7.
, The heat storage wall 7 is warmed and the heat storage wall 7
Temperature rises. When the temperature of the heat storage wall 7 increases, the heat heats the air in the vertical shaft 3, and the vertical shaft 3
A large updraft U is created therein. Thereby, the air in each room 21 of the building main body 2 is sucked out from the exhaust passage 23 communicating with the inside of the vertical shaft 3 due to the chimney effect of the vertical shaft 3. Fresh air is introduced into each of the rooms 21, and active unpowered natural ventilation (air flow indicated by an arrow V) utilizing solar heat is performed. Accordingly, the outside air can be cooled without power, especially in the middle period, and the cost of air conditioning can be reduced.
【００１８】なお、図２に示すように、透明壁８の外側
に、太陽高度に応じて角度調整が可能な可動反射板１１
を設け、太陽からの日射を蓄熱壁７に向けて反射するよ
うに構成すれば、太陽の光を最大限蓄熱壁７に吸収させ
ることができ、竪シャフト３内に大きな上昇気流を作り
出すことができて、自然換気能力を高めることができ
る。この場合、可動反射板１１は、透明壁８に開口部を
設けて、その開口部を開閉するシャッタ板として構成す
ることもできるし、開口部を設けないで、透明壁８の外
側に二重壁のように設けることもできる。As shown in FIG. 2, a movable reflector 11 whose angle can be adjusted according to the altitude of the sun is provided outside the transparent wall 8.
Is provided so that the solar radiation from the sun is reflected toward the heat storage wall 7 so that the solar light can be absorbed by the heat storage wall 7 as much as possible, and a large upward airflow can be created in the vertical shaft 3. As a result, natural ventilation capacity can be enhanced. In this case, the movable reflection plate 11 may be provided with an opening in the transparent wall 8 and configured as a shutter plate that opens and closes the opening. It can also be provided like a wall.
【００１９】図２は、後者の例を示しており、透明壁８
の外側に、下端縁を上下方向回動自在に軸支した状態の
矩形板状の可動反射板１１を多段に設けている。これら
の可動反射板１１は、別に設けた制御装置（図示略）に
より角度調整され、太陽高度に応じて最適な状態で蓄熱
壁７へ向けて太陽光を反射するようになっている。FIG. 2 shows the latter example, in which the transparent wall 8 is formed.
A movable reflector 11 in the form of a rectangular plate whose lower end is pivotally supported in the up-down direction is provided in multiple stages. The angles of these movable reflectors 11 are adjusted by a separately provided control device (not shown), and reflect the sunlight toward the heat storage wall 7 in an optimal state according to the altitude of the sun.
【００２０】また、可動反射板１１の反射面の下側に断
熱層を設けることもでき、そうした場合、日射がなく外
気温度が空調温度より低い時や夜間時などに、可動反射
板１１を閉じた位置に調整することにより、蓄熱壁７か
らの熱放射を遮断することができ、竪シャフト３内の空
気を冷やさないようにすることができる。特に、開口部
を開閉するシャッタ板で可動反射板１１を構成した場合
には、竪シャフト３内の暖かい空気をできるだけ外に逃
がさないようにすることができ、換気能力の維持・強化
に寄与することができる。Further, a heat insulating layer can be provided below the reflecting surface of the movable reflecting plate 11. In such a case, the movable reflecting plate 11 is closed when there is no sunlight and the outside air temperature is lower than the air conditioning temperature or at night. By adjusting the position, the heat radiation from the heat storage wall 7 can be cut off, and the air in the vertical shaft 3 can be prevented from being cooled. In particular, when the movable reflection plate 11 is configured by a shutter plate that opens and closes the opening, warm air in the vertical shaft 3 can be prevented from escaping to the outside as much as possible, which contributes to maintenance and enhancement of ventilation capacity. be able to.
【００２１】なお、上記実施の形態においては、主とし
て排気機能を奏する竪シャフト３の構成についてのみ説
明したが、別途給気機能を奏するものとして、例えば建
物本体２の北側に外気取入口２４に連通する竪シャフト
を設ければ、特に中間期において北側の竪シャフトから
導入された空気を建物本体２を通じた後に南側の竪シャ
フト３から排気させることにより、より効率的な自然換
気による外気冷房を行うことが可能となるとともに、冬
季には、南側の竪シャフト３の日照を外気の予熱に利用
し、北側の竪シャフト上部から排気することが可能とな
るという効果が得られる。In the above embodiment, only the configuration of the vertical shaft 3 having an exhaust function has been described. However, the vertical shaft 3 having an additional air supply function may be connected to the outside air inlet 24 on the north side of the building body 2, for example. If the vertical shaft is provided, the air introduced from the north vertical shaft in the middle period is discharged from the south vertical shaft 3 after passing through the building body 2 in particular, thereby performing more efficient outdoor air cooling by natural ventilation. As a result, in winter, the sunshine of the vertical shaft 3 on the south side is used for preheating the outside air, and it is possible to exhaust air from the upper part of the vertical shaft on the north side.
【００２２】[0022]
【発明の効果】以上説明したように、請求項１に記載の
発明によれば、日射の透過する竪シャフトの周壁の一部
を蓄熱壁で構成し、その蓄熱を利用して竪シャフト内に
大きな上昇気流を作り出すようにしているので、竪シャ
フトの煙突効果を促進して、建物本体からの排気を無動
力で積極的に行うことができ、建物本体の各部屋の換気
能力を高めることができる。しかも、自然エネルギ（太
陽熱）を利用した密度差換気であることから、給排気フ
ァンが不要であり、中間期には自然換気による外気冷房
を行うことで、空調コストを削減できる。As described above, according to the first aspect of the present invention, a part of the peripheral wall of the vertical shaft through which solar radiation penetrates is constituted by a heat storage wall, and the heat storage is used in the vertical shaft. Since a large updraft is created, the chimney effect of the vertical shaft is promoted, and the exhaust from the building body can be actively performed without power, and the ventilation capacity of each room of the building body can be increased. it can. In addition, because of the density difference ventilation using natural energy (solar heat), no air supply / exhaust fan is required, and the air conditioning cost can be reduced by performing outdoor air cooling by natural ventilation in the middle period.
【００２３】また、請求項２に記載の発明によれば、透
明壁の外側に、日射を蓄熱壁に向けて反射することので
きる可動反射板を設け、可動反射板の角度を太陽高度に
応じて変えられるようにしたので、太陽熱を利用した自
然換気をより有効に行うことができ、さらに請求項３に
記載の発明によれば、可動反射板の反射面の下側に断熱
層を設けたので、可動反射板の角度調整により、日射の
ない時間帯における蓄熱壁からの熱放射を極力抑えるこ
とができる。従って、日照時間帯における自然換気能力
を常に高く維持することができるといった効果が得られ
る。According to the second aspect of the present invention, a movable reflector which can reflect solar radiation toward the heat storage wall is provided outside the transparent wall, and the angle of the movable reflector is adjusted according to the sun altitude. Since natural ventilation using solar heat can be performed more effectively, the heat insulating layer is provided below the reflecting surface of the movable reflecting plate. Therefore, by adjusting the angle of the movable reflection plate, heat radiation from the heat storage wall during a time period when there is no solar radiation can be suppressed as much as possible. Therefore, the effect that the natural ventilation ability in the sunshine time zone can always be kept high can be obtained.
【図１】本発明の実施形態の自然換気システムを適用し
た中層建物の側断面図である。FIG. 1 is a side sectional view of a middle-rise building to which a natural ventilation system according to an embodiment of the present invention is applied.
【図２】同実施形態の要部斜視図である。FIG. 2 is a perspective view of a main part of the embodiment.
１ 建物 ２ 建物本体 ３ 竪シャフト ６ 換気口 ７ 蓄熱壁 ８ 透明壁 １１ 可動反射板 ２３ 排気通路 ２４ 外気取入口 Ｔ 日射 DESCRIPTION OF SYMBOLS 1 Building 2 Building main body 3 Vertical shaft 6 Ventilation opening 7 Thermal storage wall 8 Transparent wall 11 Movable reflector 23 Exhaust passage 24 Outside air intake T Solar radiation
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｆ２４Ｊ 2/42 Ｆ２４Ｊ 2/42 Ｃ (72)発明者 小名 秋人 東京都新宿区西新宿一丁目25番１号 大成 建設株式会社内 (72)発明者 小林 光 東京都新宿区西新宿一丁目25番１号 大成 建設株式会社内 Ｆターム(参考） 2E001 DB02 DD17 EA01 FA03 FA04 FA24 FA41 HA04 HA11 HD11 HD14 HF11 KA01 LA18 NA07 ND00 ND03 3L080 AC03 AD02 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme court ゛ (Reference) F24J 2/42 F24J 2/42 C (72) Inventor Akito Onato 1-25 Nishishinjuku, Shinjuku-ku, Tokyo No. 1 Taisei Construction Co., Ltd. (72) Inventor Hikaru Kobayashi F-term (reference) 2E001 DB02 DD17 EA01 FA03 FA04 FA24 FA41 HA04 HA11 HD11 HD14 HF11 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo KA01 LA18 NA07 ND00 ND03 3L080 AC03 AD02
Claims (3)
に、上端に換気口を有する換気用の竪シャフトを設け、
この竪シャフトの周壁を、日射の透過する透明壁と、透
過した日射を吸収して竪シャフト内の空気温度を上昇さ
せる蓄熱壁とで構成し、この竪シャフトの内部に、外気
取入口を備えた建物本体の排気通路を連通させたことを
特徴とする建物の自然換気システム。1. A vertical shaft for ventilation having a ventilation opening at an upper end is provided on an outer wall portion of a building which receives solar radiation from the sun,
The peripheral wall of this vertical shaft is composed of a transparent wall through which solar radiation penetrates, and a heat storage wall which absorbs the transmitted solar radiation and raises the temperature of the air inside the vertical shaft, and has an outside air intake inside the vertical shaft. The building's natural ventilation system is characterized by communicating the exhaust passage of the building itself.
角度調整が可能とされ、且つ太陽からの日射を蓄熱壁に
向けて反射する可動反射板を設けたことを特徴とする請
求項１に記載の建物の自然換気システム。2. A movable reflector provided outside the transparent wall, the angle of which can be adjusted in accordance with the altitude of the sun, and which reflects solar radiation from the sun toward the heat storage wall. 2. The natural ventilation system for a building according to 1.
層を設けたことを特徴とする請求項２に記載の建物の自
然換気システム。3. The natural ventilation system for a building according to claim 2, wherein a heat insulating layer is provided below the reflecting surface of the movable reflecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000397500A JP2002194826A (en) | 2000-12-27 | 2000-12-27 | Natural ventilation system for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000397500A JP2002194826A (en) | 2000-12-27 | 2000-12-27 | Natural ventilation system for building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002194826A true JP2002194826A (en) | 2002-07-10 |
Family
ID=18862617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000397500A Pending JP2002194826A (en) | 2000-12-27 | 2000-12-27 | Natural ventilation system for building |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002194826A (en) |
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