JPH0518023B2 - - Google Patents

Info

Publication number
JPH0518023B2
JPH0518023B2 JP60115058A JP11505885A JPH0518023B2 JP H0518023 B2 JPH0518023 B2 JP H0518023B2 JP 60115058 A JP60115058 A JP 60115058A JP 11505885 A JP11505885 A JP 11505885A JP H0518023 B2 JPH0518023 B2 JP H0518023B2
Authority
JP
Japan
Prior art keywords
heat
storage tank
air
heat storage
greenhouse
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.)
Expired - Lifetime
Application number
JP60115058A
Other languages
Japanese (ja)
Other versions
JPS61272538A (en
Inventor
Yoshitaka Fujii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Home Co Ltd
Original Assignee
Mitsui Home Co Ltd
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.)
Filing date
Publication date
Application filed by Mitsui Home Co Ltd filed Critical Mitsui Home Co Ltd
Priority to JP60115058A priority Critical patent/JPS61272538A/en
Publication of JPS61272538A publication Critical patent/JPS61272538A/en
Publication of JPH0518023B2 publication Critical patent/JPH0518023B2/ja
Granted legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Residential Or Office Buildings (AREA)
  • Central Air Conditioning (AREA)

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、太陽熱を利用して蓄熱槽に蓄熱し、
該熱を利用して効率的に建物内の暖房を行ないう
る太陽熱利用建物に関する。
[Detailed Description of the Invention] (Industrial Application Field) The present invention utilizes solar heat to store heat in a heat storage tank,
The present invention relates to a solar heat building that can efficiently heat the inside of the building by using the heat.

(従来技術とその問題点) 近年、省エネルギーの観点から太陽熱を利用し
て暖房を行うソーラーシステムが種々提案されて
おり、その1つとして、床下に蓄熱槽を設け、昼
間、屋根面に配設された集熱器で加熱された温風
を上記蓄熱槽に循環させて蓄熱し、これを夜間の
暖房に利用するようにしたものがある。
(Prior art and its problems) In recent years, various solar systems that use solar heat for heating have been proposed from the perspective of energy conservation.One of them is a system that installs a heat storage tank under the floor and places it on the roof during the day. There is a system in which hot air heated by a heat collector is circulated to the heat storage tank to store heat, and this is used for heating at night.

ところが、上記のようなソーラーシステムでは
集熱器からの温風をダクトを介して蓄熱槽へ循環
させるようにしていることと、季節的な変化をあ
まり考慮していないため、通常暖房の必要のない
夏期において集熱器で加熱された空気が屋根裏等
にこもり、逆に暑さを増長する問題があつた。
However, in the solar system described above, warm air from the heat collector is circulated through ducts to the heat storage tank, and seasonal changes are not taken into consideration, so the need for heating is usually reduced. During the hot summer months, the air heated by the heat collectors gets stuck in the attic, causing the problem of increasing the heat.

さらに、上記集熱器のみではその集熱性能には
限度があるため、暖房を必要とする冬期において
必ずしも充分な蓄熱が行われていないという問題
を有していた。
Furthermore, since there is a limit to the heat collection performance of the heat collector alone, there has been a problem in that sufficient heat storage is not necessarily carried out in the winter when heating is required.

(発明の目的) 本発明はかかる従来の問題点に鑑み、効率的な
集熱が可能であるととに、蓄熱の必要のない夏期
等には有効な換気が行ない得るようにした太陽熱
利用建物を提供することを目的とする。
(Object of the Invention) In view of the above conventional problems, the present invention provides a solar thermal building that is capable of efficient heat collection and effective ventilation during the summer and other times when heat storage is not required. The purpose is to provide

(問題点を解決するための手段) 上記目的を達成するため、本発明においては床
下に蓄熱槽を設け、外壁面に太陽熱を透過する透
過板を有する温室の下部と前記蓄熱槽の温風出口
プレナムとを連通し、該温室の上部を屋根面に配
設した集熱器の空気導入側と連通させ、該集熱器
で太陽熱により加熱された温風をダクトを介して
前記蓄熱槽の温風入口プレナムへ循環しうるよう
に構成するとともに、前記集熱器からの空気が流
通可能な屋根裏空間の少なくとも2ケ所に開閉自
在な換気ガラリを設け、冬期は前記換気ガラリを
閉じ、前記温室内でプレヒーテイングされた空気
を前記集熱器で加熱して前記蓄熱槽に蓄熱し、こ
れを夜間の暖房に使用し、夏期は前記換気ガラリ
を開けるとともに前記温室の透過板下方から外部
空気を導入して換気可能とした、太陽熱利用建物
を特徴とする。
(Means for Solving the Problems) In order to achieve the above object, the present invention provides a heat storage tank under the floor, a lower part of the greenhouse having a transparent plate that transmits solar heat on the outer wall surface, and a hot air outlet of the heat storage tank. The upper part of the greenhouse is communicated with the air introduction side of a heat collector installed on the roof surface, and the hot air heated by solar heat in the heat collector is passed through the duct to the heat storage tank. In addition to allowing air to circulate to the inlet plenum, at least two openable and closable ventilation louvers are provided in at least two locations in the attic space through which air from the heat collector can circulate, and in winter, the ventilation louvers are closed and the air inside the greenhouse is The preheated air is heated by the heat collector and stored in the heat storage tank, and this is used for heating at night.In the summer, the ventilation louver is opened and outside air is sucked in from below the transparent plate of the greenhouse. The building is characterized by solar heat utilization, which has been introduced to enable ventilation.

(実施例) 以下、本発明の好適な実施例を図面により説明
する。
(Embodiments) Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

第1図乃至第5図は本発明に係るソーローシス
テムを組み込んだ太陽熱利用建物の一実施例を示
すものであり、該建物の居間、食堂等の床下に蓄
熱槽1が設けられている。
1 to 5 show an embodiment of a solar heat building incorporating the Solow system according to the present invention, in which a heat storage tank 1 is provided under the floor of a living room, dining room, etc. of the building.

該蓄熱槽1は、第5図に示す如くポリエチレン
シート及び押出発泡ポリエチレン等よりなる断
熱、防水層により底壁11及び側壁12等を形成
してなる。
As shown in FIG. 5, the heat storage tank 1 has a bottom wall 11, side walls 12, etc. formed of a heat insulating and waterproof layer made of a polyethylene sheet, extruded polyethylene foam, or the like.

該蓄熱槽1の上面には、多数の凸条を平行に形
成した、いわゆるキーストンプレート等の放熱板
13を設け、その上に空気層14を介してコンク
リート層15、及び均しモルタル層16を設けて
床を形成し、その表面にカーペツト等の床仕上材
17を設置してある。
On the upper surface of the heat storage tank 1, a heat dissipation plate 13, such as a so-called keystone plate, having a large number of parallel protrusions is provided, and a concrete layer 15 and a leveling mortar layer 16 are placed on top of the heat dissipation plate 13 with an air layer 14 in between. A floor is provided, and a floor finishing material 17 such as a carpet is placed on the surface of the floor.

しかして、蓄熱槽1の両側面には、前記側壁1
2から適当な間隙を画してコンクリートブエーク
18が数段(本実施例では2段)積層され、該ブ
ロツク18の各貫通孔18aが水平方向に前記間
隙と、ブロツク18で囲まれた内部とを連通する
ことにより、前記側壁12と、上方の放熱板13
と、下方の底壁11及びブロツク18とで温風入
口プレナム19及び温風出口プレナム20を形成
している。
Therefore, on both sides of the heat storage tank 1, the side walls 1
Concrete blocks 18 are stacked in several stages (two stages in this embodiment) with an appropriate gap from the block 2, and each through hole 18a of the block 18 is horizontally connected to the gap and the inside surrounded by the block 18. By communicating with the side wall 12 and the upper heat sink 13
The lower bottom wall 11 and block 18 form a hot air inlet plenum 19 and a hot air outlet plenum 20.

また、該温風入口プレナム19及び出口プレナ
ム20で囲まれた空間内に蓄熱材としての砕石2
1が充填されて蓄熱層22を形成している。
In addition, crushed stone 2 as a heat storage material is placed in the space surrounded by the hot air inlet plenum 19 and the outlet plenum 20.
1 is filled to form a heat storage layer 22.

2は、屋根面に組み込まれた集熱器で、太陽熱
を利用して流通する空気を加熱するもので、該集
熱器2で加熱された空気は、ダクト3を介してフ
アン4により前記蓄熱槽1へと循環されるように
なつている。
Reference numeral 2 denotes a heat collector built into the roof surface, which uses solar heat to heat the circulating air. The water is circulated to tank 1.

本実施例では、該集熱器2は、屋根表面に面す
る二重ガラスからなる透過板21と、該通過板2
1と空気層22を介して平行に配設された波形鉄
板からなる集熱器23とを備え、該集熱板23と
これに所定間隔をおいて下方に平行に配設された
ロツクウール等の断熱層24との間に温風通路2
5が形成されている。
In this embodiment, the heat collector 2 includes a transmission plate 21 made of double glass facing the roof surface, and a transmission plate 21 made of double glass facing the roof surface.
1 and a heat collector 23 made of a corrugated iron plate arranged in parallel with an air layer 22 in between. Hot air passage 2 between the heat insulating layer 24
5 is formed.

前記ダクト3は、蓄熱槽1の温風入口プレナム
19に連通しており、該入口プレナム19からフ
アン4により蓄熱槽1内を流通した温風は、出口
プレナム20を通り、温室5の外部側床面から室
内に吹き上げられる。
The duct 3 communicates with a hot air inlet plenum 19 of the heat storage tank 1 , and the hot air that flows through the heat storage tank 1 from the inlet plenum 19 by the fan 4 passes through the outlet plenum 20 and is directed to the outside of the greenhouse 5 . It is blown up from the floor into the room.

該温室5は、外壁面全面にガラス等に太陽熱を
透過する透過板51が配設され、該透過板51の
外面は、第2図に示す如く屋根軒裏に収納されて
いるブラインド52で覆うことができるようにな
つている。
The greenhouse 5 is provided with a transparent plate 51 that transmits solar heat through glass or the like on the entire outer wall surface, and the outer surface of the transparent plate 51 is covered with a blind 52 housed in the eaves of the roof as shown in FIG. It is now possible to do so.

なお、該ブラインド52は透過板51の内面側
に配設するようにしてもよい。また、透過板51
の最下部51aは第3図に示す如く、開閉可能と
されている。
Note that the blind 52 may be arranged on the inner surface side of the transparent plate 51. In addition, the transparent plate 51
As shown in FIG. 3, the lowermost part 51a of the holder can be opened and closed.

しかして、温室5内に流入した温風はその天井
面に設けられたガラリ6から再び集熱器2内へ循
環されるようになつている。
Thus, the warm air flowing into the greenhouse 5 is circulated back into the heat collector 2 from the louver 6 provided on the ceiling surface.

一方、集熱器2で加熱された空気は、開閉自在
な断熱戸7を開放することにより、断熱材で覆わ
れた屋根裏空間8内に流通可能となつており、該
屋根裏空間8の少なくとも2ケ所には、該空間を
密閉もしくは換気可能とすることができる開閉自
在の換気ガラリ9,10が設けられている。
On the other hand, the air heated by the heat collector 2 can be circulated into the attic space 8 covered with a heat insulating material by opening the openable and closable heat insulating door 7. Ventilation louvers 9 and 10, which can be opened and closed, are provided at these locations to allow the space to be sealed or ventilated.

上記構成からなる本実施例において、冬期の昼
間は第1図に示すように換気ガラリ9,10を閉
じ、断熱戸7も閉状態にしておき、一方、温室5
の透過板51の最下部51aも閉じ、ブラインド
52も軒裏に巻上げ収納しておく。
In this embodiment having the above configuration, during the daytime in winter, the ventilation louvers 9 and 10 are closed as shown in FIG. 1, and the insulation door 7 is also kept closed.
The lowermost part 51a of the transparent plate 51 is also closed, and the blind 52 is also rolled up and stored under the eaves.

しかして、透過板51を介して太陽熱により温
室5内の空気はある程度プレヒーテイングされて
上昇し、ガラリ6から集熱器2内へ入り、該集熱
器2によりさらに本格的に加熱された温風をフア
ン4を駆動することによりダクト3を介して蓄熱
槽1内へ循環させ蓄熱材21との間で熱交換を行
ない、蓄熱層22に蓄熱する。
The air inside the greenhouse 5 is preheated to some extent through the transparent plate 51 by solar heat and rises, enters the heat collector 2 through the louver 6, and is heated further by the heat collector 2. By driving the fan 4, warm air is circulated through the duct 3 into the heat storage tank 1, where it exchanges heat with the heat storage material 21 and stores heat in the heat storage layer 22.

蓄熱槽1を通過した空気は、温風出口プレナム
20から再び温室5内に導入される。
The air that has passed through the heat storage tank 1 is introduced into the greenhouse 5 again from the hot air outlet plenum 20.

このようにして昼間蓄熱槽1内に蓄熱された熱
は、夜間になると、フアン4の駆動を停止し、ま
た透過板51外面はブラインドシヤツター52で
覆うことにより、蓄熱槽1上部の放熱板13、空
気層14、コンクリート層15、均しモルタル層
16、床仕上材17を介して直上の室内に放熱さ
せ、床暖房に供することができる。
The heat stored in the heat storage tank 1 during the daytime in this way is transferred to the heat sink at the top of the heat storage tank 1 by stopping the drive of the fan 4 and covering the outer surface of the transmission plate 51 with a blind shutter 52 at night. 13. Heat can be radiated into the room directly above via the air layer 14, concrete layer 15, leveled mortar layer 16, and floor finishing material 17, and can be used for floor heating.

一方、暖房の必要のない夏期は、蓄熱槽1を使
用する必要はなく、第3図に示すように屋根裏の
換気ガラリ9,10を開け、かつ断熱戸7を閉状
態にし、温室5の透過板最下部51aも開放する
ことにより、外部空気を温室5内に導入するとと
もに、該空気を集熱器2を経由して断熱戸7から
屋根裏空間8内に流通させ、換気ガラリ9,10
を通つて屋根裏空間8内を換気、流通する空気と
一緒に外部へ排出して、該屋根裏空間8内に熱の
こもるのを防止し、建物内の換気を図ることがで
きる。
On the other hand, in the summer when there is no need for heating, there is no need to use the heat storage tank 1, and as shown in FIG. By opening the lowest part 51a of the plate, outside air is introduced into the greenhouse 5, and the air is circulated through the heat collector 2 from the insulating door 7 into the attic space 8, and the ventilation louvers 9, 10
Through the attic space 8, the inside of the attic space 8 is ventilated and the circulating air is discharged to the outside, thereby preventing heat from accumulating in the attic space 8 and providing ventilation within the building.

なお、温室5内に流入した外部空気の一部は、
第3図中に矢線で示す如く、温室5の内部壁53
に設けた換気窓54を通じて他の部屋も換気しつ
つ、外部に放出するように構成してもよい。
Note that part of the external air that has flowed into the greenhouse 5 is
As shown by the arrow in FIG. 3, the inner wall 53 of the greenhouse 5
It may be configured to ventilate the air to the outside while ventilating other rooms through the ventilation window 54 provided in the room.

また、2階部分の床部分にコンクリート層など
からなる蓄熱床(図示せず)を配設することによ
り、特に冬期における建物全体としての蓄熱性能
をさらに向上させることもできる。
Furthermore, by providing a heat storage floor (not shown) made of a concrete layer or the like on the floor of the second floor, it is possible to further improve the heat storage performance of the building as a whole, especially in winter.

また、蓄熱槽1内に蓄えられた熱は、上記床暖
房形式だけでなく、暖房時には居室内の空気を該
蓄熱槽1内に循環させて暖房を行うことも可能で
ある等、本発明の要旨を逸脱しない範囲内で種々
の変形例がで可能あることは云うまでもない。
In addition, the heat stored in the heat storage tank 1 can be used not only in the above-mentioned floor heating type, but also in heating by circulating the air inside the living room into the heat storage tank 1 during heating. It goes without saying that various modifications can be made without departing from the scope of the invention.

(発明の効果) 本発明は上述した如く構成されており、冬期は
温室内であらかじめある程度まで加熱された空気
を放熱器内に導入して本格的に加熱することによ
り、集熱効率を向上させことができ、集熱した熱
エネルギーは蓄熱槽内に蓄えることにより、夜間
等に有効な居室内の暖房を行うことができる。
(Effects of the Invention) The present invention is configured as described above, and in winter, air that has been heated to a certain degree in the greenhouse is introduced into the radiator and heated in earnest, thereby improving heat collection efficiency. By storing the collected thermal energy in the heat storage tank, it is possible to effectively heat the living room at night.

また、これとは逆に暖房の不要な夏期には、室
内や屋根裏等にこもりがちな熱の換気を良好に維
持できるため有効に外部に排出し、暑さを防ぐこ
とができる有用なものである。
On the other hand, in the summer when heating is not required, it is useful because it can maintain good ventilation of the heat that tends to be trapped indoors and attics, allowing it to be effectively discharged outside and preventing heat. be.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図乃至第5図は本考案の一実施例を示すも
ので、第1図は冬期の昼間における蓄熱態様を示
すシステム構成図、第2図は冬期の夜間における
暖房状態を示すシステム構成図、第3図は夏期の
換気状態を示すシステム構成図、第4図は、屋根
裏部分の要部概念図、第5図は蓄熱槽の構成を示
す要部断面図である。 1……蓄熱槽、2……集熱器、3……ダクト、
4……フアン、5……温室、51……透過板、5
2……ブラインド、6……ガラリ、7……断熱
戸、8……屋根裏空間、9,10……換気ガラ
リ。
Figures 1 to 5 show an embodiment of the present invention. Figure 1 is a system configuration diagram showing the heat storage mode during the daytime in winter, and Figure 2 is a system configuration diagram showing the heating status during the nighttime in winter. 3 is a system configuration diagram showing the ventilation state in summer, FIG. 4 is a conceptual diagram of the main parts of the attic, and FIG. 5 is a sectional view of the main parts showing the structure of the heat storage tank. 1... Heat storage tank, 2... Heat collector, 3... Duct,
4... Juan, 5... Greenhouse, 51... Transparent plate, 5
2... Blind, 6... Loud, 7... Insulated door, 8... Attic space, 9, 10... Ventilation louver.

Claims (1)

【特許請求の範囲】 1 床下に蓄熱槽を設け、外壁面に太陽熱を透過
する透過板を有する温室の下部と前記蓄熱槽の温
風出口プレナムとを連通し、該温室の上部を屋根
面に配設した集熱器の空気導入側と連通させ、該
集熱器で太陽熱により加熱された温風をダクトを
介して前記蓄熱槽の温風入口プレナムへ循環しう
るように構成するとともに、前記集熱器からの空
気が流通可能な屋根裏空間の少なくとも2ケ所に
開閉自在な換気ガラリを設け、冬期は前記換気ガ
ラリを閉じ、前記温室内でプレヒーテイングされ
た空気を前記集熱器で加熱して前記蓄熱槽に蓄熱
し、これを夜間の暖房に使用し、夏期は前記換気
ガラリを開けるとともに前記温室の透過板下方か
ら外部空気を導入して換気可能としたことを特徴
とする太陽熱利用建物。 2 暖房時には前記蓄熱槽への温風の送給を停止
し、該蓄熱槽上の床面から室内へ熱を放熱して床
暖房を行うようにした特許請求の範囲第1項記載
の太陽熱利用建物。 3 前記透過板の外側もしくは内側にはブライン
ドが配設されている特許請求の範囲第1項もしく
は第2項記載の太陽熱利用建物。 4 前記屋根裏空間は、開閉自在な断熱戸により
前記集熱器からの空気が流通可能となつている特
許請求の範囲第1項乃第3項のいずれかに記載の
太陽熱利用建物。
[Scope of Claims] 1. A heat storage tank is provided under the floor, and the lower part of a greenhouse having a transparent plate that transmits solar heat on the outer wall surface is communicated with a hot air outlet plenum of the heat storage tank, and the upper part of the greenhouse is connected to the roof surface. It is configured to communicate with the air introduction side of a heat collector arranged so that hot air heated by solar heat in the heat collector can be circulated to the warm air inlet plenum of the heat storage tank through a duct, and Ventilation louvers that can be opened and closed are provided in at least two places in the attic space through which air from the heat collector can flow, and the ventilation louvers are closed in winter, and the air preheated in the greenhouse is heated by the heat collector. The solar heat utilization system is characterized in that the heat is stored in the heat storage tank and used for heating at night, and in the summer, the ventilation louver is opened and outside air is introduced from below the transparent plate of the greenhouse to enable ventilation. building. 2. Solar heat utilization according to claim 1, wherein during heating, the supply of hot air to the heat storage tank is stopped, and heat is radiated from the floor above the heat storage tank into the room to perform floor heating. building. 3. The solar heating building according to claim 1 or 2, wherein a blind is provided on the outside or inside of the transparent plate. 4. The solar heating building according to any one of claims 1 to 3, wherein the attic space is configured to allow air from the heat collector to circulate through an insulated door that can be opened and closed.
JP60115058A 1985-05-28 1985-05-28 Building utilizing solar heat Granted JPS61272538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60115058A JPS61272538A (en) 1985-05-28 1985-05-28 Building utilizing solar heat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60115058A JPS61272538A (en) 1985-05-28 1985-05-28 Building utilizing solar heat

Publications (2)

Publication Number Publication Date
JPS61272538A JPS61272538A (en) 1986-12-02
JPH0518023B2 true JPH0518023B2 (en) 1993-03-10

Family

ID=14653128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60115058A Granted JPS61272538A (en) 1985-05-28 1985-05-28 Building utilizing solar heat

Country Status (1)

Country Link
JP (1) JPS61272538A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8902662D0 (en) * 1989-02-07 1989-03-30 Ridett Alan H Improvements in or relating to buildings
KR20010112823A (en) * 2000-06-15 2001-12-22 박화랑 Solar energy system for buildings
JP2013083146A (en) * 2011-09-28 2013-05-09 Misawa Homes Co Ltd Building with loft

Also Published As

Publication number Publication date
JPS61272538A (en) 1986-12-02

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