JPH04324092A - Latent heat accumulating material - Google Patents
Latent heat accumulating materialInfo
- Publication number
- JPH04324092A JPH04324092A JP3122337A JP12233791A JPH04324092A JP H04324092 A JPH04324092 A JP H04324092A JP 3122337 A JP3122337 A JP 3122337A JP 12233791 A JP12233791 A JP 12233791A JP H04324092 A JPH04324092 A JP H04324092A
- Authority
- JP
- Japan
- Prior art keywords
- latent heat
- heat accumulating
- heat storage
- accumulating material
- storage material
- 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
- 239000000463 material Substances 0.000 title abstract description 3
- 235000017281 sodium acetate Nutrition 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000005338 heat storage Methods 0.000 claims description 11
- 239000011232 storage material Substances 0.000 claims description 10
- BDKLKNJTMLIAFE-UHFFFAOYSA-N 2-(3-fluorophenyl)-1,3-oxazole-4-carbaldehyde Chemical compound FC1=CC=CC(C=2OC=C(C=O)N=2)=C1 BDKLKNJTMLIAFE-UHFFFAOYSA-N 0.000 claims description 8
- 229940087562 sodium acetate trihydrate Drugs 0.000 claims description 8
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 abstract description 3
- 239000013526 supercooled liquid Substances 0.000 description 7
- 230000008023 solidification Effects 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
Description
【0001】0001
【産業上の利用分野】本発明は、潜熱蓄熱材に関する。
更に詳しくは、過冷却状態を安定化させた潜熱蓄熱材に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a latent heat storage material. More specifically, the present invention relates to a latent heat storage material whose supercooled state is stabilized.
【0002】0002
【従来の技術】本出願人は先に、過冷却状態にある潜熱
蓄熱材を必要に応じて固化させ、所定温度での潜熱の放
出を可能ならしめる過冷却液体の任意固化装置を種々提
案している(特開昭63−6389号公報、同63−1
4089号公報、同63−14090号公報、同63−
135789号公報および同64−46582号公報)
。これらの固化装置は、いずれも装置内に固体蓄熱材あ
るいは発核剤接触蓄熱材を収容しておき、適当な手段で
所望の時期に過冷却液体と接触させ、固化せしめる構造
を有している。また、過冷却液体を封入した柔軟性材料
製密封容器の変形に伴って変形するスプリングによって
、過冷却液体を所望の時期に固化せしめる装置も提案さ
れている(実開平2−73582号公報)。[Prior Art] The present applicant has previously proposed various devices for optionally solidifying supercooled liquid, which solidify a latent heat storage material in a supercooled state as necessary, and make it possible to release latent heat at a predetermined temperature. (Japanese Unexamined Patent Publication No. 63-6389, 63-1
Publication No. 4089, Publication No. 63-14090, Publication No. 63-
135789 and 64-46582)
. All of these solidification devices have a structure in which a solid heat storage material or a nucleating agent-contact heat storage material is housed in the device, and is brought into contact with a supercooled liquid at a desired time using appropriate means to solidify it. . Furthermore, an apparatus has been proposed in which the supercooled liquid is solidified at a desired time using a spring that deforms as a sealed container made of a flexible material containing the supercooled liquid is deformed (Japanese Utility Model Publication No. 73582/1999).
【0003】0003
【発明が解決しようとする課題】このような過冷却液体
の任意固化装置において、所望の時期に固化せしめる迄
は、過冷却液体がその状態に安定化されていなければな
らないという当然の要求が存在する。[Problem to be Solved by the Invention] In such an arbitrary solidification device for supercooled liquid, there is a natural requirement that the supercooled liquid must be stabilized in that state until it is solidified at a desired time. do.
【0004】また、酢酸ナトリウム・3水和物は、融解
潜熱が60cal/gと高く、更に常温でも、液体状態
で蓄熱している潜熱を固化して放熱することなく、過冷
却液体として安定に存在することから、蓄熱・放熱の制
御が可能な代表的な潜熱型蓄熱材として使用されている
。しかしながら、これを−20℃迄冷却すると、自然に
固化が生じて潜熱を放熱してしまうため、それの寒冷地
での使用を不可能としている。[0004] Sodium acetate trihydrate has a high latent heat of fusion of 60 cal/g, and even at room temperature, it is stable as a supercooled liquid without solidifying and dissipating the latent heat stored in the liquid state. Because of its existence, it is used as a typical latent heat storage material that can control heat storage and radiation. However, if it is cooled to -20°C, it will naturally solidify and radiate latent heat, making it impossible to use it in cold regions.
【0005】本発明の目的は、酢酸ナトリウム・3水和
物系の潜熱蓄熱材において、その過冷却状態を安定化せ
しめたものを提供することにある。An object of the present invention is to provide a latent heat storage material based on sodium acetate trihydrate whose supercooled state is stabilized.
【0006】[0006]
【課題を解決するための手段】かかる本発明の目的は、
酢酸ナトリウム・3水和物に水を添加することによって
達成される。[Means for Solving the Problems] The purpose of the present invention is to
This is accomplished by adding water to sodium acetate trihydrate.
【0007】酢酸ナトリウム・3水和物CH3COON
a・3H2O(融点58℃)は、前述の如く過冷却状態
となっても0〜−20℃付近で固化を開始してしまうた
め、氷点下における環境下では自然固化してしまい、前
記の如き各種の任意固化装置を用いて、必要なときにそ
れの潜熱を取り出すことができなくなってしまうが、こ
れに水を酢酸ナトリウム・3水和物に対して約10〜4
0重量%、好ましくは約20〜30重量%添加すること
により、過冷却状態を安定に保持することができる。Sodium acetate trihydrate CH3COON
a.3H2O (melting point 58°C) starts to solidify at around 0 to -20°C even if it is supercooled as mentioned above, so it will naturally solidify in an environment below freezing, and various types of Using an optional solidification device, it becomes impossible to extract the latent heat when necessary, but water is mixed with sodium acetate trihydrate to
By adding 0% by weight, preferably about 20 to 30% by weight, a supercooled state can be stably maintained.
【0008】[0008]
【発明の効果】酢酸ナトリウム・3水和物に水を添加す
ることにより、液体分子同志の凝集反応を弱めて酢酸ナ
トリウム・3水和物の過冷却状態を安定化させることが
でき、その安定化の程度は−40℃迄冷却しても固化せ
ず、前記の如き各種装置や寒冷地での潜熱放熱に有効に
使用することができる。[Effect of the invention] By adding water to sodium acetate trihydrate, the aggregation reaction between liquid molecules can be weakened and the supercooled state of sodium acetate trihydrate can be stabilized. It does not solidify even when cooled to -40°C, and can be effectively used for various devices such as those mentioned above and for dissipating latent heat in cold regions.
【0009】[0009]
【実施例】次に、実施例について本発明を説明する。[Example] Next, the present invention will be explained with reference to an example.
【0010】実施例
CH3COONa・3H2Oに、それに対して10重量
%、20重量%または30重量%の純水を加えてプラス
チック製容器に入れ、密閉した状態で80℃に加熱した
後、一定の降温速度で−40℃迄冷却し、この潜熱蓄熱
材が固化を開始する温度を3回くり返して測定した。Example 10%, 20% or 30% by weight of pure water was added to CH3COONa.3H2O, placed in a plastic container, heated to 80°C in a sealed state, and then cooled at a constant temperature. The latent heat storage material was cooled to −40° C. and the temperature at which the latent heat storage material started to solidify was measured three times.
Claims (1)
加し、過冷却状態を安定化させた潜熱蓄熱材。[Claim 1] A latent heat storage material in which water is added to sodium acetate trihydrate to stabilize the supercooled state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3122337A JPH04324092A (en) | 1991-04-24 | 1991-04-24 | Latent heat accumulating material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3122337A JPH04324092A (en) | 1991-04-24 | 1991-04-24 | Latent heat accumulating material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04324092A true JPH04324092A (en) | 1992-11-13 |
Family
ID=14833476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3122337A Pending JPH04324092A (en) | 1991-04-24 | 1991-04-24 | Latent heat accumulating material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04324092A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004239591A (en) * | 2002-12-09 | 2004-08-26 | Denso Corp | Supercooling thermal storage device, and vehicular supercooling thermal storage system |
WO2014024883A1 (en) | 2012-08-08 | 2014-02-13 | 古河電気工業株式会社 | Heat storage material composition, auxiliary heat source using same, and heat supply method |
EP2853576A1 (en) | 2013-09-30 | 2015-04-01 | Panasonic Corporation | Heat storage material composition and method for using heat storage material composition |
EP3127986A1 (en) | 2015-08-06 | 2017-02-08 | Panasonic Corporation | Latent heat storage material |
-
1991
- 1991-04-24 JP JP3122337A patent/JPH04324092A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004239591A (en) * | 2002-12-09 | 2004-08-26 | Denso Corp | Supercooling thermal storage device, and vehicular supercooling thermal storage system |
WO2014024883A1 (en) | 2012-08-08 | 2014-02-13 | 古河電気工業株式会社 | Heat storage material composition, auxiliary heat source using same, and heat supply method |
US10359237B2 (en) | 2012-08-08 | 2019-07-23 | Furukawa Electric Co., Ltd. | Heat source material composition, and auxiliary heat source and heat supply method using the same |
EP2853576A1 (en) | 2013-09-30 | 2015-04-01 | Panasonic Corporation | Heat storage material composition and method for using heat storage material composition |
US9732264B2 (en) | 2013-09-30 | 2017-08-15 | Panasonic Corporation | Heat storage material composition and method for using heat storage material composition |
EP3127986A1 (en) | 2015-08-06 | 2017-02-08 | Panasonic Corporation | Latent heat storage material |
US9650554B2 (en) | 2015-08-06 | 2017-05-16 | Panasonic Corporation | Latent heat storage material |
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