JP2001248539A - Displacement type solar low temperature difference engine system - Google Patents
Displacement type solar low temperature difference engine systemInfo
- Publication number
- JP2001248539A JP2001248539A JP2000062043A JP2000062043A JP2001248539A JP 2001248539 A JP2001248539 A JP 2001248539A JP 2000062043 A JP2000062043 A JP 2000062043A JP 2000062043 A JP2000062043 A JP 2000062043A JP 2001248539 A JP2001248539 A JP 2001248539A
- Authority
- JP
- Japan
- Prior art keywords
- low temperature
- solar
- temperature difference
- heat
- engine system
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F01C1/0207—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F01C1/0215—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- 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
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、比較的低温度の
熱源からも出力の取り出しが可能な熱機関に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat engine capable of extracting output from a relatively low-temperature heat source.
【０００２】[0002]
【従来の技術】従来の太陽熱発電装置は図７に示すよう
に広大な土地から太陽エネルギーを集めることでエネル
ギー密度を上げ、５００〜１０００℃といった高温を得
ることで効率を上げるものがほとんどである。2. Description of the Related Art As shown in FIG. 7, most conventional solar power generators increase the energy density by collecting solar energy from a vast land and increase the efficiency by obtaining a high temperature of 500 to 1000 ° C. .
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、以上の
従来技術によれば、非常に広大な敷地と高度な技術を用
いた装置が必要となり、コストや安全性の面から結局の
ところ幅広い普及が阻害されてしまう。However, according to the prior art described above, a very large site and a device using advanced technology are required, which ultimately hinders widespread use in terms of cost and safety. Will be done.
【０００４】そこで、この発明は、小地域向け・一般家
庭用の太陽エネルギー利用分散型エネルギーシステム
（熱電併給を含む）を提供することを課題とする。集熱
面積が限られるため、得られるエネルギー量も少なく、
低温度熱源からも出力の取り出しが可能なこの発明の低
温度差エンジンシステムが必要となる。[0004] Therefore, an object of the present invention is to provide a distributed energy system using solar energy (including cogeneration) for small areas and ordinary households. Because the heat collection area is limited, the amount of energy obtained is small,
There is a need for a low temperature difference engine system of the present invention that is capable of extracting power from a low temperature heat source.
【０００５】[0005]
【課題を解決するための手段】以上の課題を解決するた
めに、請求項１の発明は、基本的熱機関の構成５要素の
うち加熱部分に定置型（非追尾式CPC型）ソーラーコレ
クタを採用したことを特徴とする容積型ソーラー低温度
差エンジンシステムである。Means for Solving the Problems To solve the above problems, the invention of claim 1 is to provide a stationary (non-tracking type CPC type) solar collector in a heating part among the five components of a basic heat engine. This is a positive displacement solar low temperature difference engine system characterized by adoption.
【０００６】また、請求項２の発明は、基本的熱機関の
構成５要素のうち膨張部分にスクロール型エキスパンダ
を採用したことを特徴とする容積型ソーラー低温度差エ
ンジンシステムである。A second aspect of the present invention is a positive displacement solar low temperature difference engine system characterized in that a scroll type expander is employed in an expanded portion of the five constituent elements of the basic heat engine.
【０００７】請求項３の発明は、基本的熱機関の構成５
要素に新たに潜熱蓄熱タンクを設けたことを特徴とする
容積型ソーラー低温度差エンジンシステムである。A third aspect of the present invention provides a basic structure of a heat engine.
This is a positive displacement solar low temperature difference engine system characterized by newly providing a latent heat storage tank in an element.
【０００８】[0008]
【発明の実施の形態】この発明の一実施形態を、図１に
示す。FIG. 1 shows an embodiment of the present invention.
【０００９】この発明の容積型ソーラー低温度差エンジ
ンシステムは図２に示す従来のランキンサイクルの加熱
部分８にCPC型ソーラーコレクタ１、膨張部分９にスク
ロール型エキスパンダ２を採用し、加えて太陽エネルギ
ーのもつ欠点である間欠性を解決するために蓄熱システ
ムとして潜熱蓄熱タンク３を組み込んだものである。A positive displacement solar low temperature difference engine system according to the present invention employs a CPC solar collector 1 for a heating portion 8 and a scroll expander 2 for an expansion portion 9 of the conventional Rankine cycle shown in FIG. The latent heat storage tank 3 is incorporated as a heat storage system in order to solve the intermittent problem of energy.
【００１０】CPC型ソーラーコレクタ１は、図３のよう
な内部構造を持つ。許容偏角内で入射した太陽光は反射
板１５によりすべて銅管１９に到達する。反射板１５の
表面は高い反射率を実現する増反射コーティングがなさ
れており、銅管１９の表面には黒色クロム（選択吸収
膜）が塗布されている。反射板の汚れ防止と断熱性能に
大きな影響を与える透過体はクリプトン封入複層ガラス
１３とアクリルベースのフィルム１４によるトリプルグ
レージングがなされている。裏面はスタイロフォーム１
６とグラスウール１７により断熱されている。The CPC solar collector 1 has an internal structure as shown in FIG. All the sunlight incident within the allowable deviation angle reaches the copper tube 19 by the reflection plate 15. The surface of the reflection plate 15 is provided with a reflection-enhancing coating for realizing high reflectance, and the surface of the copper tube 19 is coated with black chromium (selective absorption film). The transmissive material which greatly affects the prevention of contamination of the reflector and the heat insulating performance is triple glazed by the krypton-encapsulated double-glazed glass 13 and the acrylic-based film 14. Styrofoam 1 on the back
6 and glass wool 17 are insulated.
【００１１】スクロール型エキスパンダ２はエアコン用
のスクロールコンプレッサーを逆回ししたもので、図３
のような作動原理を持つ。単体での試験で高い機関効率
を持つことがわかっている。The scroll type expander 2 is obtained by reversing a scroll compressor for an air conditioner.
It has the following operating principle. It has been found that a single unit test has high engine efficiency.
【００１２】潜熱蓄熱タンク３は、内部に潜熱蓄熱カプ
セル７を持ち、蓄熱量の増大や一定条件の蒸気をアキュ
ムレータとしての自己蒸発作用により得ることができ
る。これにより夜間などの日射の無いときにでも運転が
可能となる。The latent heat storage tank 3 has a latent heat storage capsule 7 inside, and can increase the amount of stored heat and obtain steam under a certain condition by a self-evaporating action as an accumulator. This enables driving even when there is no solar radiation such as at night.
【００１３】実施形態の効果を述べれば、この実施形態
によって、高い集熱効率を有するCPC型ソーラーコレク
タ１によって得られた高圧熱水をアキュムレータに貯蔵
し、フラッシュ蒸発を利用して蒸気を造り、スクロール
型エキスパンダ２を駆動させ、コンデンサ６によって冷
却・凝縮した水をまたコレクタ１へ戻すという基本ラン
キンサイクルにおいて、図５に示すように日射に対する
軸出力の効率（自立運転効率）は冬期においても６％を
達成した。また、冷却水が受けた熱量も加えた総合効率
では３４％となった。また、使用頻度の少ないコレクタ
を利用してより高温の得られる夏季においては１０.５
％の効率が得られ、さらに、カスケード利用（多段化）
・スクロールのラップ形状（渦巻形状）や可変圧力比化
などの最適設計図６を加えれば１５％の効率も可能と試
算される。According to the effect of the embodiment, according to this embodiment, high-pressure hot water obtained by the CPC solar collector 1 having high heat collection efficiency is stored in an accumulator, steam is produced by using flash evaporation, and scrolling is performed. In the basic Rankine cycle in which the mold expander 2 is driven and the water cooled and condensed by the condenser 6 is returned to the collector 1, as shown in FIG. % Achieved. The total efficiency including the heat received by the cooling water was 34%. Further, in summer when a higher temperature can be obtained by using a collector which is not frequently used, 10.5 is used.
% Efficiency, and cascade use (multi-stage)
・ It is estimated that an efficiency of 15% can be achieved by adding an optimum design drawing 6 such as a scroll wrap shape (spiral shape) and variable pressure ratio.
【００１４】これは現在一部普及している太陽光発電装
置の効率６〜１０％を凌ぐものです。This exceeds the efficiency of the currently widely used photovoltaic power generator of 6 to 10%.
【００１５】この発明のシステムが持つ多目的性（暖房
・給湯に利用可能、多種熱源利用可能、日射の無いとき
にも発電可能、エネルギー貯蔵が電力貯蔵より安価な
ど）もふくめて考えると、太陽エネルギー利用システム
として幅広く普及することが十分期待できる。Considering the versatility of the system of the present invention (use for heating and hot water supply, use of various heat sources, power generation even without solar radiation, energy storage is cheaper than power storage, etc.), It can be expected that the system will be widely used.
【００１６】[0016]
【実施例】図１の実施形態では膨張部分にスクロール型
エキスパンダ２を１段で用いているが、これを２段や３
段にしたカスケード利用も本実施形態では可能である。
また、図１の実施形態では容積型エキスパンダとしてス
クロール型を用いているが、代わりにレシプロ型やロー
タリー型・スクリュー型など他の形式の容積型エキスパ
ンダも含む。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment shown in FIG. 1, a scroll type expander 2 is used in one stage for an inflated portion.
In this embodiment, cascaded use in stages is also possible.
Although the scroll type is used as the volume expander in the embodiment of FIG. 1, other types of volume expanders such as a reciprocating type, a rotary type and a screw type are also included.
【００１７】また、図３の実施形態では真空に引いてい
ない箱内に２次元CPC型反射板１５を配置しているが、
箱内を真空にすることにより集熱効率を向上させること
や、３次元CPC型反射板を用いて高効率化を図ることも
この実施形態に含む。図１の実施形態では、コージェネ
レーション（熱電併給）システムとしての利用も含んで
いる。さらに、図１の実施形態では熱源として太陽熱を
利用しているが、代わりに工場排熱などの利用も可能と
なる。In the embodiment shown in FIG. 3, the two-dimensional CPC reflector 15 is arranged in a box that is not evacuated.
This embodiment also includes improving the heat collection efficiency by evacuating the inside of the box and increasing the efficiency by using a three-dimensional CPC-type reflector. The embodiment of FIG. 1 includes use as a cogeneration (cogeneration) system. Further, in the embodiment of FIG. 1, solar heat is used as a heat source, but it is also possible to use, for example, factory exhaust heat.
【００１８】[0018]
【発明の効果】以上説明したように、この発明によれ
ば、比較的小規模の熱需要地に分散型エネルギーシステ
ムとして容積型ソーラー低温度差エンジンシステムを幅
広く普及できる。これにより太陽エネルギーなどの再生
可能エネルギー利用率が向上し、化石燃料消費量の削減
につながることが期待できる。As described above, according to the present invention, a positive displacement solar low temperature difference engine system can be widely used as a distributed energy system in a relatively small heat demand area. This is expected to increase the utilization rate of renewable energy such as solar energy, leading to a reduction in fossil fuel consumption.
【図１】この発明の一実施形態を示した容積型ソーラー
低温度差エンジンシステムの概要図である。FIG. 1 is a schematic diagram of a positive displacement solar low temperature difference engine system showing an embodiment of the present invention.
【図２】基本的なランキンサイクルの模式図である。FIG. 2 is a schematic diagram of a basic Rankine cycle.
【図３】この発明の一実施形態を示したＣＰＣ型ソーラ
ーコレクタの概要図である。FIG. 3 is a schematic view of a CPC solar collector showing one embodiment of the present invention.
【図４】この発明の一実施形態を示したスクロール型エ
キスパンダの作動原理図である。FIG. 4 is an operation principle diagram of a scroll type expander showing an embodiment of the present invention.
【図５】この発明の容積型ソーラー低温度差エンジンシ
ステムの性能図である。FIG. 5 is a performance diagram of the positive displacement solar low temperature difference engine system of the present invention.
【図６】この発明のさらなる最適設計の一案として、ス
クロールラップ形状の一例図である。FIG. 6 is a diagram showing an example of a scroll wrap shape as a further optimal design plan of the present invention.
【図７】従来技術を示す太陽熱発電装置の概要図であ
る。FIG. 7 is a schematic diagram of a solar thermal power generation device showing a conventional technique.
１ CPC型ソーラーコレクタ ２ スクロールエキスパンダ ３ 潜熱蓄熱タンク ４ ポンプ ５ 高揚程ポンプ ６ コンデンサ ７ 潜熱蓄熱カプセル ８ 加熱部分 ９ 膨張部分 １０ 冷却部分 １１ 圧縮部分 １２ 作動流体 １３ クリプトン封入複層ガラス １４ フィルム １５ 反射板 １６ 断熱材（グラスウール） １７ 断熱材（スタイロフォーム） １８ ケーシング １９ 銅管 DESCRIPTION OF SYMBOLS 1 CPC type solar collector 2 Scroll expander 3 Latent heat storage tank 4 Pump 5 High head pump 6 Capacitor 7 Latent heat storage capsule 8 Heating part 9 Expansion part 10 Cooling part 11 Compressed part 12 Working fluid 13 Krypton-filled double glazing 14 Film 15 Reflection Plate 16 Insulation material (glass wool) 17 Insulation material (Styrofoam) 18 Casing 19 Copper tube
Claims (3)
分に定置型（非追尾式CPC型）ソーラーコレクタを採用
したことを特徴とする容積型ソーラー低温度差エンジン
システム。1. A positive displacement solar low temperature difference engine system characterized in that a stationary (non-tracking type CPC type) solar collector is adopted in a heating portion among five components of a basic heat engine.
分にスクロール型エキスパンダを採用したことを特徴と
する請求項１記載の容積型ソーラー低温度差エンジンシ
ステム。2. A positive displacement solar low temperature difference engine system according to claim 1, wherein a scroll type expander is employed in an expansion portion of the five constituent elements of the basic heat engine.
蓄熱タンクを設けたことを特徴とする請求項１記載の容
積型ソーラー低温度差エンジンシステム。3. The positive displacement solar low temperature difference engine system according to claim 1, wherein a latent heat storage tank is newly provided for five constituent elements of the basic heat engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000062043A JP2001248539A (en) | 2000-03-07 | 2000-03-07 | Displacement type solar low temperature difference engine system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000062043A JP2001248539A (en) | 2000-03-07 | 2000-03-07 | Displacement type solar low temperature difference engine system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001248539A true JP2001248539A (en) | 2001-09-14 |
Family
ID=18582104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000062043A Pending JP2001248539A (en) | 2000-03-07 | 2000-03-07 | Displacement type solar low temperature difference engine system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001248539A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010134130A1 (en) * | 2009-05-21 | 2010-11-25 | Nishii Yasuo | Thermal engine utilizing solar light collection using lens, and power generating device |
| WO2011031894A3 (en) * | 2009-09-10 | 2011-07-14 | Hunt Arlon J | Liquid metal thermal storage system |
| JP2012127574A (en) * | 2010-12-15 | 2012-07-05 | Hitachi Plant Technologies Ltd | Solar heat utilization system and its control method |
| KR101335555B1 (en) * | 2011-12-23 | 2013-12-02 | 주식회사 네오너지 | Scroll expander generating system using heat source of solarthermal |
| KR101579004B1 (en) | 2014-07-23 | 2015-12-18 | 주식회사 우신산업 | The power generation system using solar energy |
| WO2019085712A1 (en) * | 2017-10-30 | 2019-05-09 | 北京兆阳光热技术有限公司 | Solar thermal power generation system and heat transfer and obtaining method |
-
2000
- 2000-03-07 JP JP2000062043A patent/JP2001248539A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010134130A1 (en) * | 2009-05-21 | 2010-11-25 | Nishii Yasuo | Thermal engine utilizing solar light collection using lens, and power generating device |
| WO2011031894A3 (en) * | 2009-09-10 | 2011-07-14 | Hunt Arlon J | Liquid metal thermal storage system |
| CN102597513A (en) * | 2009-09-10 | 2012-07-18 | 阿隆·J·洪特 | Liquid metal thermal storage system |
| JP2012127574A (en) * | 2010-12-15 | 2012-07-05 | Hitachi Plant Technologies Ltd | Solar heat utilization system and its control method |
| KR101335555B1 (en) * | 2011-12-23 | 2013-12-02 | 주식회사 네오너지 | Scroll expander generating system using heat source of solarthermal |
| KR101579004B1 (en) | 2014-07-23 | 2015-12-18 | 주식회사 우신산업 | The power generation system using solar energy |
| WO2019085712A1 (en) * | 2017-10-30 | 2019-05-09 | 北京兆阳光热技术有限公司 | Solar thermal power generation system and heat transfer and obtaining method |
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