JPH0323836B2 - - Google Patents
Info
- Publication number
- JPH0323836B2 JPH0323836B2 JP57197356A JP19735682A JPH0323836B2 JP H0323836 B2 JPH0323836 B2 JP H0323836B2 JP 57197356 A JP57197356 A JP 57197356A JP 19735682 A JP19735682 A JP 19735682A JP H0323836 B2 JPH0323836 B2 JP H0323836B2
- Authority
- JP
- Japan
- Prior art keywords
- heat storage
- heat
- fluid
- solid
- transition
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/025—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material being in direct contact with a heat-exchange medium or with another heat storage material
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
- Fats And Perfumes (AREA)
Description
【発明の詳細な説明】
この発明は、固相で相電転移行う物質を常に固
体状態の潜熱蓄熱材料として用いた蓄熱方法およ
び蓄熱器に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat storage method and a heat storage device using a substance that undergoes a phase electric transition in a solid phase as a latent heat storage material that is always in a solid state.
潜熱蓄熱は、種々の蓄熱技術の中でも、蓄熱密
度が高く、一定温度で熱の出し入れができるとい
う特徴があり、システムも単純であるため、実用
性の高い蓄熱方法である。 Among various heat storage technologies, latent heat storage is a highly practical heat storage method because it has a high heat storage density, can transfer heat in and out at a constant temperature, and has a simple system.
しかし、従来の潜熱蓄熱方法は、ほとんど固相
―液相間の相変化を利用したものであり、潜熱蓄
熱器のように、特に蓄熱材料と熱媒体との間の熱
交換の向上が重要となる場合、一部の特殊な蓄熱
材料を用いた蓄熱材（特開昭57−76078号公報、
特願昭57−109046号公報）を除いて熱交換が十分
に行えず、技術開発上の大きな問題点となつてい
るのが現状である。 However, most conventional latent heat storage methods utilize phase change between solid and liquid phases, and as with latent heat storage devices, it is especially important to improve heat exchange between the heat storage material and the heat medium. In this case, heat storage materials using some special heat storage materials (Japanese Patent Application Laid-Open No. 57-76078,
With the exception of Japanese Patent Application No. 57-109046), heat exchange cannot be performed sufficiently, which is currently a major problem in technological development.
上記した公報に記載されている蓄熱器でも、ポ
リエチレンを蓄熱物質として用いているので、こ
の場合でも使用温度は、約100〜150℃に限られ
る。そして、それより高温で使用する蓄熱材料に
ついても、撹拌、振動などの種々の伝熱促進方法
の提案はあるが（例えば電子技術総合研究所彙報
45、11〜12、1981）、いずれも著しいコストの上
昇を招き、かつ固相→液相に相変化する際の入熱
時には伝熱促進の効果が発揮できない。 Even in the heat storage device described in the above-mentioned publication, polyethylene is used as the heat storage material, so even in this case, the operating temperature is limited to about 100 to 150°C. Regarding heat storage materials used at higher temperatures, there are various proposals for heat transfer promotion methods such as stirring and vibration (for example, the Bulletin of the Electronics Technology Research Institute).
45, 11-12, 1981), all of which lead to a significant increase in cost, and cannot exhibit the effect of promoting heat transfer during the heat input during the phase change from solid phase to liquid phase.
この発明は、かかる実状にかんがみてなされた
もので、固相で相転移を行う結晶が蓄熱材料とし
て使用できる点に着目し、太陽熱、排ガス、排水
等から得られる熱エネルギーを蓄熱する方法およ
びその蓄熱器を提供するものである。 This invention was made in view of the above circumstances, and focuses on the fact that crystals that undergo a phase transition in the solid phase can be used as heat storage materials, and provides a method for storing thermal energy obtained from solar heat, exhaust gas, waste water, etc. It provides a heat storage device.
固相で相転移を行なう結晶を固体状蓄熱材料と
して用いると、液相―固相間の相変化がないた
め、熱交換向上の対策が立て易いという利点があ
り、さらに、常に固相であるために取り扱いが極
めて容易になる。 When a crystal that undergoes a phase transition in the solid phase is used as a solid heat storage material, there is an advantage that it is easy to take measures to improve heat exchange because there is no phase change between the liquid phase and the solid phase. This makes handling extremely easy.
特に、樹脂、化粧品、爆薬等の原料として使用
されるペンタエルスリトール〔Ｃ（CH2OH）4〕
は、188℃での転移熱がほぼ280kJ／Kg程度にな
り、蓄熱材として十分に実用できることが分かつ
た。以下、この発明を図面により説明する。 In particular, pentaerthritol [C(CH 2 OH) 4 ] is used as a raw material for resins, cosmetics, explosives, etc.
It was found that the heat of transition at 188℃ was approximately 280kJ/Kg, making it suitable for practical use as a heat storage material. Hereinafter, this invention will be explained with reference to the drawings.
第１図はこの発明の一実施例を示す蓄熱器の断
面図で、１はペンタエリスリトール等からなる蓄
熱材料結晶、２は前記蓄熱材料結晶１と溶け合わ
ない流体、３は蓄熱容器、４は撹拌機である。蓄
熱容器３内には、１本もしくは複数の伝熱管５が
設けられており、該伝熱管５内を熱媒体６が流れ
て蓄熱物質と熱交換を行うようにしてある。 FIG. 1 is a sectional view of a heat storage device showing an embodiment of the present invention, in which 1 is a heat storage material crystal made of pentaerythritol or the like, 2 is a fluid that does not melt with the heat storage material crystal 1, 3 is a heat storage container, and 4 is a heat storage material crystal. It is a stirrer. One or more heat transfer tubes 5 are provided in the heat storage container 3, and a heat medium 6 flows through the heat transfer tubes 5 to exchange heat with the heat storage material.
この発明の蓄熱器は、従来の潜熱蓄熱器と異な
り、蓄熱容器３内部の蓄熱材料は流体２に分散し
た状態であるため、伝熱面積が大きく、さらに、
撹拌することによつてより一層の伝熱促進をする
ことができる。 Unlike conventional latent heat heat storage devices, the heat storage material of the present invention has a large heat transfer area because the heat storage material inside the heat storage container 3 is dispersed in the fluid 2.
Heat transfer can be further promoted by stirring.
また、第２図に示すように、撹拌がなくとも、
伝熱管５の本数を増加しておけば、流体２の自然
体流が生じるために、伝熱は従来のものより促進
されるという結果がある。 Furthermore, as shown in Figure 2, even without stirring,
If the number of heat transfer tubes 5 is increased, a natural flow of the fluid 2 will occur, so that heat transfer will be promoted more than in the conventional case.
第３図はこの発明の他の実施例を示すもので、
前記した蓄熱材料結晶１と流体２の流動性蓄熱物
質を小容器１０内に密封し、これを蓄熱容器３内
に複数本収容し、小容器１０の間〓に熱媒体６を
流路８から流路９へ流すことによつて熱交換を行
う蓄熱器の概略図である。小容器１０としては、
例えば直径10mm、長さ500mm程度の薄肉円管のよ
うに、熱容量が小さく、半径方向の熱伝導抵抗が
小さくなるようなものが望ましい。この蓄熱器に
おいても、前記第１図または第２図に示した実施
例の蓄熱器と同様、蓄熱材料の回りで対流が発生
するため、伝熱促進を図ることができる。 FIG. 3 shows another embodiment of this invention,
The fluid heat storage materials of the heat storage material crystals 1 and the fluid 2 described above are sealed in a small container 10, a plurality of these are housed in the heat storage container 3, and a heat medium 6 is introduced between the small containers 10 from a flow path 8. 2 is a schematic diagram of a heat storage device that performs heat exchange by flowing through a flow path 9. FIG. As the small container 10,
For example, it is desirable to use a thin-walled circular tube with a diameter of 10 mm and a length of about 500 mm, which has a small heat capacity and low heat conduction resistance in the radial direction. In this heat storage device, as in the heat storage device of the embodiment shown in FIG. 1 or 2, convection occurs around the heat storage material, so that heat transfer can be promoted.
また、蓄熱材料が分散相となつているため、小
容器１０への充填、取り出しが極めて容易である
という利点がある。 Further, since the heat storage material is in the form of a dispersed phase, there is an advantage that it is extremely easy to fill and take out the small container 10.
第４図に示した蓄熱器では、蓄熱材料結晶１と
流体２の流動性蓄熱物質を蓄熱容器３内にためて
おき、蓄熱時にはポンプ７を用いて流路９から蓄
熱容器３外へ循環させて熱交換器１２等で熱を奪
つた後、流路８から蓄熱容器３内へ戻すようにし
ている。また、放熱時には逆に流路８より蓄熱容
器３外へ循環させて、熱交換機１２等に熱を放出
した後に、流路９から蓄熱容器３内へ戻す。 In the heat storage device shown in FIG. 4, fluid heat storage materials such as heat storage material crystals 1 and fluid 2 are stored in a heat storage container 3, and during heat storage, they are circulated through a flow path 9 to the outside of the heat storage container 3 using a pump 7. After the heat is removed by a heat exchanger 12 or the like, it is returned into the heat storage container 3 through the flow path 8. In addition, during heat dissipation, conversely, the heat is circulated outside the heat storage container 3 through the flow path 8, and after releasing the heat to the heat exchanger 12 and the like, it is returned into the heat storage container 3 through the flow path 9.
この場合、蓄熱材料結晶１を第５図に示すよう
にフイルタ１１によつて蓄熱容器３の外へ出さな
いようにしてもよい。蓄熱材料結晶１が細かい場
合には、フイルタ１１の目詰まりがあるため、前
記した第４図のほうが望ましく、蓄熱材料結晶１
粗い場合にはポンプ７による円滑な送液が難しい
ため、第５図に示したように、流体２のみを循環
させる方法がよい。 In this case, the heat storage material crystal 1 may be prevented from coming out of the heat storage container 3 by a filter 11 as shown in FIG. If the heat storage material crystal 1 is fine, the filter 11 may be clogged, so the above-mentioned diagram in FIG. 4 is preferable, and the heat storage material crystal 1
If the fluid is rough, it is difficult to send the fluid smoothly by the pump 7, so it is better to circulate only the fluid 2 as shown in FIG.
なお、この発明の蓄熱器に用いる蓄熱材料結晶
１は、粉末状でも10mm以下の顆粒状でも固体状物
質であれば同様の効果を発揮するが、それ以上の
大きさであると結晶内の熱伝導抵抗が大きくな
り、蓄熱器の熱交換性能が低下するので好ましく
ない。 Note that the heat storage material crystal 1 used in the heat storage device of the present invention will exhibit the same effect as long as it is a solid material, whether it is in the form of powder or granules of 10 mm or less, but if it is larger than that, the heat inside the crystal will be reduced. This is not preferable because the conduction resistance increases and the heat exchange performance of the heat storage device decreases.
また、結晶と混合させる流体は、結晶の性質を
変えない気体ならば、比熱、熱伝導率の高いもの
が好ましく、また、結晶と溶け合わない液体なら
ば粘度が低く、比熱、熱伝導率の高いものが好ま
しい。 In addition, if the fluid to be mixed with the crystal is a gas that does not change the properties of the crystal, it is preferably one with high specific heat and thermal conductivity, and if it is a liquid that does not dissolve with the crystal, it has a low viscosity and has low specific heat and thermal conductivity. The higher the price, the better.
例えば、蓄熱材料としてペンタエリスリトール
を使用する場合は、Heガス、シリコーン油や炭
化水素系液体が好ましい。 For example, when using pentaerythritol as a heat storage material, He gas, silicone oil, or hydrocarbon liquid is preferable.
以上説明したように、この発明の蓄熱方法およ
び蓄熱器は、固相で相転移に伴う転移熱を吸収、
放出する固体状物質と、この固体状物質と溶け合
わない流体とを混合し、流動性蓄熱物質として使
用するようにしたので、従来の蓄熱物質にみられ
るように液相―固相間の相変化がなく、熱交換の
向上対策が立て易いという利点がある。さらに、
常に流動性蓄熱物質の状態となつているので、そ
の取り扱いは極めて容易であり、蓄熱器の構造も
シンプルになるので、保守、点検の上でも有利で
あり、かつコストも低減できるという効果があ
る、 As explained above, the heat storage method and heat storage device of the present invention absorb transition heat accompanying phase transition in the solid phase,
The solid material to be released and the fluid that does not dissolve with this solid material are mixed and used as a fluid heat storage material, so the phase between the liquid and solid phases is different from that seen in conventional heat storage materials. It has the advantage that there is no change and it is easy to take measures to improve heat exchange. moreover,
Since it is always in the state of a fluid heat storage material, it is extremely easy to handle, and the structure of the heat storage device is simple, which is advantageous in terms of maintenance and inspection, and has the effect of reducing costs. ,
第１図はこの発明の一実施例を示す蓄熱器の断
面図、第２図、第３図はこの発明の他の実施例を
示す蓄熱器の概略図、第４図はこの発明の蓄熱方
法の一実施例を示す概略図、第５図はこの発明の
他の実施例を示す蓄熱方法の概略図である。
図中、１は蓄熱材料結晶、２は流体、３は蓄熱
容器、４は撹拌機、５は伝熱管、６は熱媒体、７
はポンプ、８，９は流路、１０は小容器、１１は
フイルタ、１２は熱交換器である。
FIG. 1 is a sectional view of a heat storage device showing one embodiment of the present invention, FIGS. 2 and 3 are schematic diagrams of a heat storage device showing other embodiments of the invention, and FIG. 4 is a heat storage method of the present invention. FIG. 5 is a schematic diagram showing one embodiment of the present invention, and FIG. 5 is a schematic diagram of a heat storage method showing another embodiment of the present invention. In the figure, 1 is a heat storage material crystal, 2 is a fluid, 3 is a heat storage container, 4 is a stirrer, 5 is a heat exchanger tube, 6 is a heat medium, 7
1 is a pump, 8 and 9 are channels, 10 is a small container, 11 is a filter, and 12 is a heat exchanger.
Claims (1)
う固体状物質と、この固体状物質と溶け合わない
流体とを混合し、流動性蓄熱物質として使用する
ことを特徴とする蓄熱方法。 ２ 固体状物質としてペンタエリスリトールを使
用することを特徴とする特許請求の範囲第１項記
載の蓄熱方法。 ３ 流体としてヘリウムガス、炭化水素系液体も
しくはシリコン油を使用することを特徴とする特
許請求の範囲第２項記載の蓄熱方法。 ４ 固相で相転移に伴う転移熱の吸収、放出を行
う固体状物質と、この固体状物質と溶け合わない
流体とを混合した流動性蓄熱物質を蓄熱容器内に
充填し、前記蓄熱容器内に設けた伝熱管内を流れ
る熱媒体と熱の交換を行わせることを特徴とする
蓄熱器。 ５ 蓄熱容器内の流動性蓄熱物質を撹拌すること
を特徴とする特許請求の範囲第４項記載の蓄熱
器。 ６ 固相で相転移に伴う転移熱の吸収、放出を行
う固体状物質と、この固体状物質と溶け合わない
流体とを混合した流動性蓄熱物質を複数個の小容
器内に密封し、熱媒体が流れる蓄熱容器内に収容
したことを特徴とする蓄熱器。 ７ 固相で相転移に伴う転移熱の吸収、放出を行
う固体状物質と、該物質と溶け合わない流体とを
混合した流動性蓄熱物質を蓄熱容器内に収容し、
前記流動性蓄熱物質、もしくは前記流体のみを蓄
熱容器外に循環させて熱の出し入れを行わせるこ
とを特徴とする蓄熱器。[Claims] 1. A solid substance that absorbs and releases transition heat associated with phase transition in a solid phase and a fluid that does not dissolve in this solid substance are mixed and used as a fluid heat storage substance. Features a heat storage method. 2. The heat storage method according to claim 1, characterized in that pentaerythritol is used as the solid substance. 3. The heat storage method according to claim 2, characterized in that helium gas, hydrocarbon liquid, or silicone oil is used as the fluid. 4 A heat storage container is filled with a fluid heat storage material that is a mixture of a solid material that absorbs and releases transition heat associated with a phase transition in a solid phase and a fluid that does not dissolve in this solid material, and A heat storage device characterized in that heat is exchanged with a heat medium flowing in a heat transfer tube provided in a heat transfer tube. 5. The heat storage device according to claim 4, characterized in that the fluid heat storage material in the heat storage container is stirred. 6 A fluid heat storage material, which is a mixture of a solid material that absorbs and releases transition heat associated with a phase transition in a solid phase, and a fluid that does not dissolve in this solid material, is sealed in multiple small containers, and the heat storage material is sealed in multiple small containers. A heat storage device characterized by being housed in a heat storage container through which a medium flows. 7. Storing a fluid heat storage material in a heat storage container, which is a mixture of a solid material that absorbs and releases transition heat associated with a phase transition in a solid phase, and a fluid that does not dissolve with the material;
A heat storage device characterized in that only the fluid heat storage material or the fluid is circulated outside the heat storage container to take in and take out heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57197356A JPS5986894A (en) | 1982-11-10 | 1982-11-10 | Regenerating method and regenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57197356A JPS5986894A (en) | 1982-11-10 | 1982-11-10 | Regenerating method and regenerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5986894A JPS5986894A (en) | 1984-05-19 |
| JPH0323836B2 true JPH0323836B2 (en) | 1991-03-29 |
Family
ID=16373120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57197356A Granted JPS5986894A (en) | 1982-11-10 | 1982-11-10 | Regenerating method and regenerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5986894A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6136696A (en) * | 1984-07-26 | 1986-02-21 | Hitachi Zosen Corp | Heat exchanger for steady heat generation |
| JPS62795A (en) * | 1985-06-26 | 1987-01-06 | Agency Of Ind Science & Technol | Heat accumulating device utilizing spiral type heat exchanger |
| JPS63118596A (en) * | 1986-11-06 | 1988-05-23 | Agency Of Ind Science & Technol | Heat accumulating device |
| JPH0823449B2 (en) * | 1989-04-07 | 1996-03-06 | 株式会社田熊総合研究所 | Heat storage type electric hot water / steam generator |
| JP2006308256A (en) * | 2005-05-02 | 2006-11-09 | Kobe Steel Ltd | Heat storage device and method of operating heat storage device |
| JP2007285701A (en) * | 2007-08-06 | 2007-11-01 | Kobe Steel Ltd | Heat storage device and method of operating heat storage device |
| WO2010070704A1 (en) * | 2008-12-16 | 2010-06-24 | 社団法人日本銅センター | Heat accumulator |
| CN106052439B (en) * | 2016-07-22 | 2017-09-29 | 金陵科技学院 | A kind of runner phase change heat exchange device and method of work |
| CN106225542B (en) * | 2016-09-12 | 2018-01-09 | 重庆大学 | A kind of active solid-liquid phase change material recuperated cycle system |
| JP6936352B1 (en) * | 2020-03-25 | 2021-09-15 | 東邦瓦斯株式会社 | Latent heat storage material composition |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2725658C2 (en) * | 1976-01-05 | 1986-11-13 | geb. Melchior Ingeborg 7148 Remseck Laing | Heat storage using the enthalpy of fusion |
| DE2814297A1 (en) * | 1977-04-04 | 1978-10-12 | Monsanto Co | PROCESS FOR DRAINING HEAT FROM A LIQUID |
| JPS5776078A (en) * | 1980-10-29 | 1982-05-12 | Agency Of Ind Science & Technol | Heat accumulator utilizing latent heat |
| JPS57146004A (en) * | 1981-03-03 | 1982-09-09 | Agency Of Ind Science & Technol | Thermal accumulator |
-
1982
- 1982-11-10 JP JP57197356A patent/JPS5986894A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5986894A (en) | 1984-05-19 |
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