JPS591952A - Solar energy absorbing device - Google Patents
Solar energy absorbing deviceInfo
- Publication number
- JPS591952A JPS591952A JP57093999A JP9399982A JPS591952A JP S591952 A JPS591952 A JP S591952A JP 57093999 A JP57093999 A JP 57093999A JP 9399982 A JP9399982 A JP 9399982A JP S591952 A JPS591952 A JP S591952A
- Authority
- JP
- Japan
- Prior art keywords
- light
- sunlight
- heat
- solar energy
- beams
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S2023/84—Reflective elements inside solar collector casings
-
- 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
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は太陽エネルギー吸収装置に関し、さらに詳しく
は、下向きの太陽光選択吸収面を有する逆子板型太陽エ
ネルギー吸収装置の改良に関するもの・である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a solar energy absorbing device, and more particularly to an improvement of a breech plate type solar energy absorbing device having a sunlight selective absorption surface facing downward.
従来、低温度の集熱に利用される太陽エネルギー吸収装
置として、太陽光を反射鏡によって反射させ、これを受
入れる下向きの太陽光選択吸収面を設けた逆子板型コレ
クターが知られている。この逆子板型コレクターは平面
から、例えば３０度の傾針角度をもって形成された太陽
光の入射窓と、該入射窓から導入された太陽光を上向き
に反射させる反射鏡と、該反射された太陽光を受入れる
下向きの太陽光選択吸収面とを備え、全体を断熱材で密
閉構造としたものである。BACKGROUND ART Conventionally, as a solar energy absorption device used for collecting low-temperature heat, there has been known a breech plate type collector that reflects sunlight with a reflecting mirror and is provided with a downward sunlight selective absorption surface that receives the reflected sunlight. This breech plate type collector has a sunlight entrance window formed from a flat surface with an angle of inclination of, for example, 30 degrees, a reflecting mirror that reflects the sunlight introduced from the entrance window upward, and a mirror that reflects the sunlight introduced from the entrance window upward. It is equipped with a downward-facing solar selective absorption surface that receives light, and the entire structure is sealed with heat insulating material.
しかし、このような装置においては、太陽光を入射窓の
保護ガラスを通過させ、さらに円弧状の反射面より反射
させたのち集熱用の選択吸収面に到達させるので、該選
択吸収面に到達するまで乱反射等によシ太陽エネルギー
が損失するという欠点がある。However, in such a device, sunlight passes through the protective glass of the entrance window, is further reflected from an arc-shaped reflective surface, and then reaches a selective absorption surface for heat collection, so that the sunlight reaches the selective absorption surface. Until then, the disadvantage is that solar energy is lost due to diffused reflection, etc.
仁のような欠点を改善するために、逆子板を形成する選
択吸収面にブラックニッケル、ブラッククロム等の黒色
被覆を施し、反射した太陽光の全波長域にわたって可及
的に多くのエネルギーを捕集する努力がなされているが
、このような手段によっても特に短波長域のエネルギー
の吸収率が無く、その部分が損失になっていた。In order to improve this defect, the selective absorption surface that forms the breech plate is coated with black nickel, black chrome, etc. to capture as much energy as possible over the entire wavelength range of reflected sunlight. Efforts have been made to increase the energy concentration, but even with such means, there is no absorption rate of energy particularly in the short wavelength region, resulting in a loss in that part.
本発明の目的は上記従来技術の欠点を解消し、太陽光の
全波長域のエネルギーを効率よく吸収することができる
太陽エネルギー吸収装置を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to eliminate the drawbacks of the prior art described above and to provide a solar energy absorption device that can efficiently absorb energy in the entire wavelength range of sunlight.
本発明は、太陽光の入射窓と、該入射窓から導入された
太陽光を上向きに反射させる反射鋼と、該反射された太
陽光を受ける下向きの太陽光選択吸収面とを有し、全体
を断熱密閉構造とした太陽エネルギー吸収装置において
１．前記太陽光の入射窓を二重構造とし、該二重構造の
空間部に可逆的異性化反応によって光エネルギーの吸収
と熱エネルギーの放出を反復し得る流動性の吸光放熱材
を存在させ、該吸光放熱材によっても熱を吸収するよう
にしたものである。The present invention has a sunlight entrance window, a reflective steel that reflects the sunlight introduced from the entrance window upward, and a sunlight selective absorption surface that faces downward and receives the reflected sunlight. In a solar energy absorption device with a heat-insulating sealed structure, 1. The sunlight entrance window has a double structure, and a fluid light-absorbing and heat-radiating material that can repeatedly absorb light energy and release heat energy by a reversible isomerization reaction is present in the space of the double structure, and The light-absorbing and heat-radiating material also absorbs heat.
本発明において、二重構造の入射窓に存在または流通さ
せる吸光放熱材は、光エネルギーまたは触媒・の作用で
可逆的異性化反応を起す種々の化学物質の中から適宜選
択可能で、例えばノルボルナジェン（２，５−ビアクロ
ヘプタジエン）、その誘導体であるエンドトリシクロ（
２，２，１，０）アカ一番、８−ジエンー３−オン、２
，３−ビス（トリフルオロメチル）−５，６−シメチル
ーヒシクロ〔２゜２、ｌ〕へブタ−２，５−ジエン、そ
の他Ｎ−カルボキシアゼピン、シクロペンタジェン誘導
体、ト１ノシクロジエン、ナフタレン、ジヒドロナフタ
レン等が良好である。また主材は流動性を有することが
好ましく、前記の主成分が流動性において十分でない場
合は、適当な溶剤、例えばシクロヘキサン、トルエン、
アセトン、ジフェニルエーテル、ＤＭＦ、ジクロルメタ
ン、クロロホルム等に溶解または懸濁させて流動性を調
整してもよい。またこれらの主成分の光増感剤として、
アセトフェノン、ｍ−メトキシアセトフェン等を含有し
てもよい。太陽光エネルギーを吸収した吸光放熱材は、
通常、適当な触媒、例えば放熱材がノルボルナジェン類
（ＮＢＤ）の場合は、ｐａ（ＮＢＤ）Ｃ工２、Ｒｈ（Ｎ
ＢＤ）、、Ｃ１２等、その他コバルトポリフィリン錯体
、コバルトフタロシアニン錯体等の金属錯体触媒と接触
させることにより、その吸収された熱エネルギーを外部
に放出させることができる。In the present invention, the light-absorbing and heat-radiating material present or flowing through the double-structure entrance window can be appropriately selected from various chemical substances that cause reversible isomerization reactions by the action of light energy or catalysts, such as norbornadiene ( 2,5-biacloheptadiene), its derivative endotricyclo(
2,2,1,0) Aka Ichiban, 8-diene-3-one, 2
, 3-bis(trifluoromethyl)-5,6-dimethyl-hycyclo[2゜2,l]hebuta-2,5-diene, other N-carboxyazepines, cyclopentadiene derivatives, to-1nocyclodiene, naphthalene , dihydronaphthalene, etc. are good. The main material preferably has fluidity, and if the main component does not have sufficient fluidity, a suitable solvent such as cyclohexane, toluene,
The fluidity may be adjusted by dissolving or suspending it in acetone, diphenyl ether, DMF, dichloromethane, chloroform, or the like. In addition, as a photosensitizer of these main ingredients,
It may also contain acetophenone, m-methoxyacetophene, and the like. A light-absorbing and heat-radiating material that absorbs solar energy is
Usually, when a suitable catalyst, for example a heat dissipating material, is norbornadiene (NBD), pa(NBD)C2, Rh(N
By contacting with a metal complex catalyst such as BD), C12, cobalt porphyrin complex, cobalt phthalocyanine complex, etc., the absorbed thermal energy can be released to the outside.
以下、本発明を図面によやさらに詳細に説明する。Hereinafter, the present invention will be explained in more detail with reference to the drawings.
第２図は、本発明の一実施列を示す太陽エネルギー吸収
装置の断面図である。この装置は、断熱材からなる容器
１と、該容器の底部の設けられた凹面鏡２と、該凹面鏡
２の斜め上方に平面から３０度の角度で設けられた吸光
窓３と、該凹面鏡２の上方にあって前記吸光窓３と容器
ｌの上端によって囲まれた開口部に設けられた、断熱材
からなる蓋体４と、該蓋体４の内側上面に設けられた逆
平面集熱器（選択吸収面）６とから主として構成される
。上記逆子板集熱器５の表面にはブラックニッケル、ブ
ラッククロム、酸化鋼ブラック等の選択吸収面が形成さ
れ、またその内部には熱交換パイプが設けられ、該バイ
ブ中に熱媒体、例えば水が流通される。一方、吸光窓３
は、第３図にそ。FIG. 2 is a cross-sectional view of a solar energy absorbing device showing one embodiment of the present invention. This device includes a container 1 made of a heat insulating material, a concave mirror 2 provided at the bottom of the container, a light absorption window 3 provided diagonally above the concave mirror 2 at an angle of 30 degrees from the plane, and a concave mirror 2. A lid body 4 made of a heat insulating material is provided in an opening located above and surrounded by the light absorption window 3 and the upper end of the container l, and an inverted plane heat collector ( (selective absorption surface) 6. A selective absorption surface of black nickel, black chrome, oxidized steel black, etc. is formed on the surface of the above-mentioned breech plate heat collector 5, and a heat exchange pipe is provided inside, and a heat medium such as water is is distributed. On the other hand, light absorption window 3
is shown in Figure 3.
の詳細を示すように、例えば厚さ５ｍの透明板ガラス１
０および１１を約３謂の間隙を保って対向させ、その周
囲をステンレス鋼からなる金属枠１２で封止し、該金属
枠１２に吸光放熱材１５の入口管１５および出口管１番
を設けたものである。For example, a transparent plate glass 1 with a thickness of 5 m is shown in detail.
0 and 11 facing each other with a gap of about 3 mm, the periphery thereof is sealed with a metal frame 12 made of stainless steel, and the metal frame 12 is provided with an inlet pipe 15 and an outlet pipe No. 1 of a light-absorbing and heat-radiating material 15. It is something that
上記構成の装置において、太陽エネルギーＥｉｊ。In the device having the above configuration, solar energy Eij.
吸光窓３に入り、ガラス１０、吸光放熱材１５およびガ
ラス１１を透過する間に太陽光の主に短波長部分が吸光
放熱材３によって吸収され、さらにその透過光は凹面鏡
２で反射され、その上方の逆平面集熱器５に入射し、太
陽光の主に長波長部分が吸収される。すなわち、太陽エ
ネルギーＥは吸光窓３に入り、ここで前記逆子板集熱器
５で吸収の困難な比較的短波長の太陽光を吸光放熱材１
５により吸収し、次いで該吸光窓３を透過１７だ太陽光
は、どの角度を透過したものでも全て凹面鏡２で反射さ
れ、その上方の逆子板集熱器５に吸収される。この集熱
器δに吸収された熱エネルギーはその上部の断熱材（上
蓋）４のために外部に放散きれず、そのため空気層６を
介ｌ−て集熱器５への熱移動が充分に行なわれる。また
この空気１ｉｉ１６は、容器内を密閉構造にしているの
で、対流による移動はほとんど発生せず、まだ吸光放熱
体を流通させた二重ガラスを吸光窓と１７で用い、さら
に逆子板集熱器の使用によって輻射損失が抑制されるの
で、吸光効率を大幅に向上させることができる。While entering the light-absorbing window 3 and passing through the glass 10, the light-absorbing and heat-radiating material 15, and the glass 11, mainly the short wavelength portion of sunlight is absorbed by the light-absorbing and heat-radiating material 3, and the transmitted light is further reflected by the concave mirror 2, The sunlight enters the upper inverted plane heat collector 5, and mainly the long wavelength portion of the sunlight is absorbed. That is, solar energy E enters the light-absorbing window 3, and here the breech plate heat collector 5 absorbs relatively short wavelength sunlight, which is difficult to absorb, into the light-absorbing and heat-dissipating material 1.
The sunlight absorbed by the concave mirror 2 and then transmitted through the light absorption window 3 17 is reflected by the concave mirror 2 no matter what angle it passes through, and is absorbed by the inverted plate heat collector 5 above it. Thermal energy absorbed by the heat collector δ cannot be completely dissipated to the outside due to the heat insulating material (top cover) 4 on the top of the heat collector δ, so that heat transfer to the heat collector 5 through the air layer 6 is not sufficient. It is done. In addition, this air 1ii16 has a sealed structure inside the container, so almost no movement due to convection occurs, and double glass with a light-absorbing heat radiator still flowing through it is used for the light-absorbing window and 17, and a breech plate heat collector is used. Since radiation loss is suppressed by using , light absorption efficiency can be greatly improved.
上記吸光窓３で太陽光エネルギーを吸収した吸光放熱材
１５は別途取り出されて適当な貯槽に保存され、必要に
応じて触媒と接触させてその吸収された熱エネルギーが
取り出され、一方、集熱器５で集められた熱は、熱交換
パイプ内の熱媒体（水）と熱交換され、熱水として取り
出される。上記実施例において、例えば従来・のように
吸光窓３を設けずに逆子板集熱器５のみの場合は最高約
１４００のスチームＩ７か得られないのに対し、吸光窓
３を設けて吸光効率を増大させた場合は、最高１１５０
〜ｌ ｆ３０ ’０のスチームを得ることができ、工業
的に充分実用可能であることが分った。The light-absorbing and heat-radiating material 15 that has absorbed solar energy through the light-absorbing window 3 is separately taken out and stored in a suitable storage tank, and is brought into contact with a catalyst as necessary to extract the absorbed thermal energy. The heat collected in the vessel 5 is exchanged with the heat medium (water) in the heat exchange pipe and extracted as hot water. In the above embodiment, for example, if the light absorption window 3 is not provided as in the conventional case and only the breech plate heat collector 5 is used, a maximum of about 1400 steam I7 cannot be obtained, whereas the light absorption efficiency is increased by providing the light absorption window 3. up to 1150 if you increase
It was found that steam of ~l f30'0 could be obtained, and that it was sufficiently practical for industrial use.
上記実施例において、吸光窓３はその開口面積と逆平面
集熱器６０集熱面の面積の比を１：１に々る・ように構
成し、かつ鏡面を円孤状とすれば、どの角度から入射し
た太陽エネルギーでも必らず吸光窓３の吸光放熱体１５
および集熱体５によって全て吸収することができるよう
になり、全天日対置吸収装置として極めて能率のよいも
のとなる。In the above embodiment, if the light absorbing window 3 is configured such that the ratio of its opening area to the area of the heat collecting surface of the inverted plane heat collector 60 is 1:1, and the mirror surface is arc-shaped, then Even when solar energy is incident from an angle, the light absorbing heat radiating body 15 of the light absorbing window 3 is always
All of the heat can be absorbed by the heat collector 5, making it an extremely efficient all-day solar absorber.
上記実施例において、二重構造の入射窓（吸光窓３）は
、ガラス以外にポリカーボネート、アク’Ｊル樹ＪＩＬ
ポリエチレンテレフタレート等の透明材料によって形
成することができる。まだ吸光窓３に吸光放熱材１５を
流通させる場合、その入口管および出口管はそれぞれ金
属枠１２の端部に設けたが、吸光放熱材を均一に流通さ
せるため、例えば枠１２内を仕切って流路を形成したり
、また枠１２にヘッダを設け、該ヘッダに穿設された複
数のノズルから並列に吸光放熱材を流入させ、他端の枠
に設けられた同様なヘッダから流出させるようＫしても
よい。この場合、ヘッダに設けられたノズルは、各ノズ
ルから均一に液が流出するようにその流路抵抗に合せた
孔径とすることが望ましい。なお、吸光窓３内の吸光放
熱材は流通させずに封入した状態で用い。適宜交換する
ようにしてもよい。In the above embodiment, the double-structure entrance window (light absorbing window 3) is made of polycarbonate, acrylic resin, etc. in addition to glass.
It can be formed from a transparent material such as polyethylene terephthalate. When the light-absorbing and heat-radiating material 15 is still flowing through the light-absorbing window 3, the inlet pipe and the outlet pipe are respectively provided at the ends of the metal frame 12, but in order to distribute the light-absorbing and heat-radiating material uniformly, for example, the inside of the frame 12 may be partitioned. A header is provided on the frame 12 to allow the light-absorbing and heat-radiating material to flow in parallel from a plurality of nozzles provided in the header and to flow out from a similar header provided in the frame at the other end. You can also K. In this case, it is desirable that the nozzles provided in the header have hole diameters that match the flow path resistance so that the liquid flows out uniformly from each nozzle. Note that the light-absorbing and heat-radiating material inside the light-absorbing window 3 is used in an enclosed state without being circulated. It may be replaced as appropriate.
以上、本発明によれば、太陽光の全波長域のエネルギー
を吸光窓と逆子板集熱器で互いに補完し合うように吸収
し、かつ乱反射光も両者により最小限にｋるので、極め
て高効率で太陽エネルギーを捕集することができる。As described above, according to the present invention, energy in the entire wavelength range of sunlight is absorbed by the light absorption window and the reverse plate heat collector in a manner that complements each other, and diffusely reflected light is also minimized by both. It can efficiently capture solar energy.
第１図は、本発明の太陽エネルギー吸収装置の一実施例
を示す装置系統図、第２図は、本発明に用いる吸光窓の
一実施例を示す斜視図である。
ｌ・・・・基台容器、２・・・・・・反射鏡（凹面鏡）
、３・・・・・ 吸光窓、５・・・・・ 逆子板集熱器
、１０，１１ ・・・ガラス、１５・・・・・吸光放熱
体。
代理人 弁理士 川 北 武 長
第 １ 図
第２図FIG. 1 is a system diagram showing an embodiment of the solar energy absorbing device of the present invention, and FIG. 2 is a perspective view showing an embodiment of the light absorption window used in the present invention. l...Base container, 2...Reflector (concave mirror)
, 3... Light absorption window, 5... Reverse plate heat collector, 10, 11... Glass, 15... Light absorption heat radiator. Agent Patent Attorney Takenaga Kawakita Figure 1 Figure 2
Claims (1)
光を上向きに反射させる反射鏡と、該反射された太陽光
を受ける下向きの太陽光選択吸収面とを有し、全体を断
熱密閉構造とした太陽エネルギー吸収装置において、前
記太陽光の入射窓を二重構造とし、該二重構造の空間部
に可逆的異性化反応によって光エネルギーの吸収と熱エ
ネルギーの放出を反復し得る流動性の吸光放熱材を存在
させるよう傾したことを特徴とする太陽エネルギー吸収
装置。 （２、特許請求の範囲第１項において、前記太陽光選択
吸収面は熱交換パイプを内蔵する逆子板集熱器であるこ
とを特徴とする太陽エネルギー吸収装置。(1) It has a sunlight entrance window, a reflecting mirror that reflects the sunlight introduced from the entrance window upward, and a sunlight selective absorption surface that faces downward and receives the reflected sunlight, and the whole In a solar energy absorbing device having a heat-insulating sealed structure, the sunlight entrance window has a double structure, and the space of the double structure can repeatedly absorb light energy and release thermal energy through a reversible isomerization reaction. A solar energy absorbing device characterized by being tilted so that a fluid light-absorbing and heat-radiating material is present. (2. The solar energy absorption device according to claim 1, wherein the sunlight selective absorption surface is a breech plate heat collector incorporating a heat exchange pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57093999A JPS6019416B2 (en) | 1982-06-03 | 1982-06-03 | solar energy absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57093999A JPS6019416B2 (en) | 1982-06-03 | 1982-06-03 | solar energy absorption device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS591952A true JPS591952A (en) | 1984-01-07 |
| JPS6019416B2 JPS6019416B2 (en) | 1985-05-16 |
Family
ID=14098098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57093999A Expired JPS6019416B2 (en) | 1982-06-03 | 1982-06-03 | solar energy absorption device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6019416B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60205190A (en) * | 1984-03-30 | 1985-10-16 | Sanyo Electric Co Ltd | Metallic hydrogenated substance-utilizing device |
| JPS60245996A (en) * | 1984-05-18 | 1985-12-05 | Matsushita Electric Ind Co Ltd | Heat exchanger |
| JPS61101270U (en) * | 1984-12-05 | 1986-06-27 | ||
| FR2882427A1 (en) * | 2005-02-23 | 2006-08-25 | Essertaux Jean Marie D | Sensor`s base structure casing, has two parallel plates placed on both sides of metallic frame and enclosing space between plates, where frame comprises U shaped section that permits fixation of one plate and evacuation of coolant |
-
1982
- 1982-06-03 JP JP57093999A patent/JPS6019416B2/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60205190A (en) * | 1984-03-30 | 1985-10-16 | Sanyo Electric Co Ltd | Metallic hydrogenated substance-utilizing device |
| JPS60245996A (en) * | 1984-05-18 | 1985-12-05 | Matsushita Electric Ind Co Ltd | Heat exchanger |
| JPS61101270U (en) * | 1984-12-05 | 1986-06-27 | ||
| FR2882427A1 (en) * | 2005-02-23 | 2006-08-25 | Essertaux Jean Marie D | Sensor`s base structure casing, has two parallel plates placed on both sides of metallic frame and enclosing space between plates, where frame comprises U shaped section that permits fixation of one plate and evacuation of coolant |
| WO2006090060A1 (en) * | 2005-02-23 | 2006-08-31 | D Essertaux Jean-Marie | Hybrid thermal and photovoltaic solar collector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6019416B2 (en) | 1985-05-16 |
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