JPH0292988A - Heat-storing material composition - Google Patents
Heat-storing material compositionInfo
- Publication number
- JPH0292988A JPH0292988A JP63247660A JP24766088A JPH0292988A JP H0292988 A JPH0292988 A JP H0292988A JP 63247660 A JP63247660 A JP 63247660A JP 24766088 A JP24766088 A JP 24766088A JP H0292988 A JPH0292988 A JP H0292988A
- Authority
- JP
- Japan
- Prior art keywords
- heat storage
- material composition
- storage material
- heat
- agent
- 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
- 239000000203 mixture Substances 0.000 title claims abstract description 29
- 239000002562 thickening agent Substances 0.000 claims abstract description 8
- 239000011232 storage material Substances 0.000 claims description 29
- 238000005338 heat storage Methods 0.000 claims description 26
- 230000008018 melting Effects 0.000 abstract description 13
- 238000002844 melting Methods 0.000 abstract description 13
- 238000002156 mixing Methods 0.000 abstract description 9
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract description 8
- 235000019270 ammonium chloride Nutrition 0.000 abstract description 8
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 abstract description 3
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052921 ammonium sulfate Inorganic materials 0.000 abstract description 3
- 235000011130 ammonium sulphate Nutrition 0.000 abstract description 3
- 229910021538 borax Inorganic materials 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 abstract description 3
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 abstract description 3
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 abstract description 3
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 abstract description 3
- 239000004328 sodium tetraborate Substances 0.000 abstract description 3
- 235000010339 sodium tetraborate Nutrition 0.000 abstract description 3
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 abstract description 3
- 229960001763 zinc sulfate Drugs 0.000 abstract description 3
- 229910001871 ammonium zinc sulfate Inorganic materials 0.000 abstract description 2
- 239000003431 cross linking reagent Substances 0.000 abstract description 2
- 229910020284 Na2SO4.10H2O Inorganic materials 0.000 abstract 2
- 230000000881 depressing effect Effects 0.000 abstract 2
- 239000012752 auxiliary agent Substances 0.000 abstract 1
- 230000024278 histolysis Effects 0.000 abstract 1
- GBCAVSYHPPARHX-UHFFFAOYSA-M n'-cyclohexyl-n-[2-(4-methylmorpholin-4-ium-4-yl)ethyl]methanediimine;4-methylbenzenesulfonate Chemical compound CC1=CC=C(S([O-])(=O)=O)C=C1.C1CCCCC1N=C=NCC[N+]1(C)CCOCC1 GBCAVSYHPPARHX-UHFFFAOYSA-M 0.000 abstract 1
- 125000000914 phenoxymethylpenicillanyl group Chemical group CC1(S[C@H]2N([C@H]1C(=O)*)C([C@H]2NC(COC2=CC=CC=C2)=O)=O)C 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 5
- 238000007711 solidification Methods 0.000 description 5
- 230000008023 solidification Effects 0.000 description 5
- 230000000994 depressogenic effect Effects 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002075 main ingredient Substances 0.000 description 3
- 239000002667 nucleating agent Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、住宅やビルの冷暖房システムにおける蓄冷材
、青果物の蓄冷材、冷凍魚貝の解凍用蓄熱材、ガス吸収
式冷房システムにおける蓄冷・蓄熱材、ヒートポンプ用
の蓄冷・蓄熱材等として利用することのできる蓄熱材組
成物に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention is applicable to cold storage materials in heating and cooling systems for houses and buildings, cold storage materials for fruits and vegetables, heat storage materials for thawing frozen fish and shellfish, and cold storage materials in gas absorption cooling systems. The present invention relates to a heat storage material composition that can be used as a heat storage material, a cold storage/heat storage material for heat pumps, etc.
［従来の技術］
冷・暖房システム等に使用される蓄熱材組成物としては
、従来、硫酸ナトリウム１０水塩を主剤とし、これに凝
固点調整剤を添加して相変化点を調整したものが使用さ
れている。[Prior Art] Conventionally, heat storage material compositions used in cooling and heating systems, etc. have been made using sodium sulfate decahydrate as the main ingredient and adding a freezing point regulator to adjust the phase change point. has been done.
［発明が解決しようとする課題］
しかるに上記蓄熱剤組成物であって相変化点を０〜１０
℃に調整したものについては、凝固・融解の相変化があ
る温１度幅に渡って起こり、明確な相変化点（プラトー
）を持たないという欠点があり、また凝固温度と融解温
度の差が大きくヒステリシスによってかなりの熱量を浪
費するという問題もある０例えば蓄熱材組成物をビル等
の冷房熱源として利用する場合、冷凍機等で冷却・凝固
させた蓄熱材組成物と室内空気との間で熱交換を行なっ
て室内空気を冷却する訳であるが、蓄熱材組成物のプラ
トーが明確でないので一定温度に空気を冷却することが
できず、室温を所定の温度に調整・保持することが難し
い。又吸熱して融解した蓄熱材組成物を再び冷却凝固さ
せて再利用するに当たり、融解温度と凝固温度の差が大
きいと蓄熱材組成物を凝固させる為により低い温度まで
冷却しなければならず、冷却機等にかかる負荷が太きく
なる。[Problems to be Solved by the Invention] However, the above heat storage agent composition has a phase change point of 0 to 10.
For those adjusted to ℃, the phase change of solidification and melting occurs over a temperature range of 1 degree, and there is a drawback that there is no clear phase change point (plateau), and the difference between the solidification temperature and melting temperature There is also the problem that a considerable amount of heat is wasted due to large hysteresis.0 For example, when a heat storage material composition is used as a heat source for cooling a building, etc., there is a problem that a large amount of heat is wasted between the heat storage material composition that has been cooled and solidified by a refrigerator, etc., and the indoor air. Indoor air is cooled by heat exchange, but since the plateau of the heat storage material composition is not clear, it is not possible to cool the air to a constant temperature, making it difficult to adjust and maintain the room temperature at a predetermined temperature. . In addition, when the heat storage material composition that has absorbed heat and melted is cooled and solidified again for reuse, if the difference between the melting temperature and the solidification temperature is large, the heat storage material composition must be cooled to a lower temperature in order to solidify. The load on the cooler etc. increases.
本発明はこうした事情に着目してなされたものであって
、明確なプラトーを有し、ヒステリシスの小さな蓄熱材
組成物を提供することを目的とするものである。The present invention was made in view of these circumstances, and it is an object of the present invention to provide a heat storage material composition that has a clear plateau and small hysteresis.
［課題を解決するための手段］
しかして上記目的を達成した本発明の蓄熱組成物は、Ｎ
ａ２ Ｓｏ、 ・ｌＯＨ２Ｏを主成分とし、増結剤を加
えて安定化した蓄熱材組成物に、ＮＨ４Ｃｌを１５〜１
９重量％加えた点に要旨を有するものである。[Means for Solving the Problems] The heat storage composition of the present invention that achieves the above object has N
a2 So, 15 to 1 NH4Cl is added to a heat storage material composition that is mainly composed of 1OH2O and stabilized by adding a binder.
The gist lies in the addition of 9% by weight.
［作用及び実施例］ 以下、実験の経緯に沿って本発明を説明する。[Function and Examples] The present invention will be explained below along with the details of the experiment.
冷冴システム等の用途に利用するには蓄熱材組成物の相
変化点を０〜１０℃に調整する必要があるが、Ｎａ、Ｓ
ｏ４・ｌ０Ｈ２Ｏ自体の相変化点は３０℃前後と高いの
で融点降下剤を添加する必要がある。In order to use it for applications such as cold storage systems, it is necessary to adjust the phase change point of the heat storage material composition to 0 to 10°C.
Since the phase change point of o4.10H2O itself is as high as around 30°C, it is necessary to add a melting point depressant.
そこで本発明者等は、Ｎａ２５Ｏ，・１０Ｈ，Ｏを主成
分とする蓄熱材組成物において融点降下剤の種類を種々
変更して加え、その相変化特性を調べた結果、前記目的
を達成する上でＮＨ４Ｃｌの添加が有効であるとの知見
を得た。Therefore, the present inventors added various types of melting point depressants to heat storage material compositions containing Na25O, .10H, O as main components and investigated the phase change characteristics. It was found that the addition of NH4Cl was effective.
そしてこうした知見の下にさらに実験を重ねた結果、本
発明を完成するに至った。As a result of further experiments based on this knowledge, the present invention was completed.
即ち第１表に示す様に、ＮＨ４Ｃｌの配合割合を変えた
蓄熱材組成物を夫々用意し、その相変化特性を調査した
ところ第１表及び第１図（ａ）〜（ｄ）に示す結果が得
られた。That is, as shown in Table 1, heat storage material compositions with different blending ratios of NH4Cl were prepared, and their phase change characteristics were investigated, and the results are shown in Table 1 and Figures 1 (a) to (d). was gotten.
第
表
尚ＮａｚＳＯ４及びＮＨ４Ｃｌ以外の添加剤としては、
増粘剤としてポリアクリル酸ナトリウム（バージコール
ＷＮ２３）、核剤として四硼酸ナトリウムを夫々添加し
、さらに硫酸アンモニウム、硫酸亜鉛、硫酸アルミニウ
ム等を配合した。Additives other than NazSO4 and NH4Cl in the table include:
Sodium polyacrylate (Vergicol WN23) was added as a thickener, sodium tetraborate was added as a nucleating agent, and ammonium sulfate, zinc sulfate, aluminum sulfate, etc. were added.
そしてこれらの成分を十分に混合した後、水を加えて蓄
熱材組成物を調製した。After thoroughly mixing these components, water was added to prepare a heat storage material composition.
動、１及びＮｏ、２は、ＮＨ４Ｃｌの配合量が少ない比
較例であり、第１図（ａ）に示される様に凝固点及び融
解点が明確ではなく、プラトーを有するものが得られな
かった。又Ｎｏ、１．２は融解温度と凝固温度の差（Δ
Ｔ）が大きく、ヒステリシスが過大であった。Ｎｏ、３
は第１図（ｂ）に示される様に凝固点及び融解点がかな
り明瞭でありこの点では一応の満足を得ることができた
が、ＮＨ，ＣＩの配合量が依然として少ないのでΔＴが
５．６℃と大きく、ヒステリシスの点で不十分であった
。これらに対し、Ｎｏ、４及び動、５はＮＨ，ＣＩの配
合量が適正であり、ΔＴが小さくしかも第１図（Ｃ）に
示される様に明確なプラトーを有する蓄熱材組成物であ
ることが確認された。Motion No. 1 and No. 2 are comparative examples in which the blended amount of NH4Cl is small, and as shown in FIG. 1(a), the freezing point and melting point were not clear and no plateau was obtained. Also, No. 1.2 is the difference between the melting temperature and the solidification temperature (Δ
T) was large and the hysteresis was excessive. No.3
As shown in Figure 1(b), the freezing point and melting point were quite clear, and we were able to obtain some satisfaction in this respect, but the blended amounts of NH and CI were still small, so ΔT was 5.6. ℃, which was insufficient in terms of hysteresis. On the other hand, No. 4 and Dynamic No. 5 are heat storage material compositions with appropriate blending amounts of NH and CI, small ΔT, and a clear plateau as shown in Figure 1 (C). was confirmed.
しかしながらＮｏ、６のようにＮ）Ｉ４Ｃ１の配合量が
多すぎると第１図（ｄ）に示される様に、相変化点は却
って不明瞭になり、且つΔＴも大きくなった。上記実験
結果から、Ｎａ２ ＳＯ２・１０Ｈ２Ｏを主剤とし、こ
れに増粘剤を加えた蓄熱材組成物に、融点降下剤として
ＮＨ４Ｃｌを１５〜１９重量％配合したものがヒステリ
シスも小さく明確なプラトーを持ち、しかも相変化点も
十分に低いものであることが分かり本発明の完成に到達
した。However, when the blending amount of N)I4C1 was too large as in No. 6, the phase change point became rather unclear and ΔT became large, as shown in FIG. 1(d). From the above experimental results, we found that a heat storage material composition containing Na2SO2・10H2O as the main ingredient and a thickener added thereto, with 15 to 19% by weight of NH4Cl as a melting point depressant, had less hysteresis and a clear plateau. Moreover, it was found that the phase change point was sufficiently low, and the present invention was completed.
本発明において増粘剤等の主剤及び融点降下剤以外の成
分については、特にその種類を限定するものではないが
、例えば増粘剤としてはポリアクリル酸ナトリウム、カ
ルボキシメチルセルロース、ポリビニルアルコール等が
挙げられる。増粘剤は蓄熱材組成物の相変化特性を安定
化させる上で不可欠の成分であり、組成物中における主
剤等の均一分散状態を維持する機能を発揮する。その配
合量は１〜１０重量％とすることが好ましく、さらには
４〜７重量％とすることがより一層望まれる。又核剤は
、過冷却現象を緩和して安定的に凝固を進める機能を発
揮する。核剤としては、四硼酸ナトリウムが一般に用い
られ、その配合量は０．５〜１．６重量％（より好まし
くは１．４〜１．６重量％）とすることが望ましい。In the present invention, the types of components other than the main ingredient such as a thickener and the melting point depressant are not particularly limited, but examples of the thickener include sodium polyacrylate, carboxymethyl cellulose, polyvinyl alcohol, etc. . The thickener is an essential component for stabilizing the phase change characteristics of the heat storage material composition, and functions to maintain a uniformly dispersed state of the base agent, etc. in the composition. The blending amount is preferably 1 to 10% by weight, and even more preferably 4 to 7% by weight. Further, the nucleating agent exhibits the function of alleviating the supercooling phenomenon and stably proceeding with solidification. As the nucleating agent, sodium tetraborate is generally used, and its content is preferably 0.5 to 1.6% by weight (more preferably 1.4 to 1.6% by weight).
その他、本発明組成物には、硫酸アンモニウム、硫酸亜
鉛、硫酸アルミニウム等の成分を配合することができ、
これらは夫々融点降下補助剤。In addition, the composition of the present invention may contain other components such as ammonium sulfate, zinc sulfate, and aluminum sulfate.
These are respectively melting point lowering aids.
架橋剤としての機能を発揮し、その配合量は３〜４重量
％、 ０．０５〜０．０９重量％、 ０．２５〜０．３
重景％８することが推奨される。そして上記成分を混合
した後、添加する水の量は３５〜５０重量％（より好ま
しくは３９〜４２重量％）とすることが望まれる。It functions as a crosslinking agent, and its blending amount is 3 to 4% by weight, 0.05 to 0.09% by weight, and 0.25 to 0.3% by weight.
It is recommended that the focus be 8%. After mixing the above components, the amount of water added is preferably 35 to 50% by weight (more preferably 39 to 42% by weight).
［発明の効果］
本発明は、以上の様に構成されており、明確なプラトー
を有すると共にヒステリシスが小さく、しかも相変化温
度が０〜１０℃と十分に低い蓄熱材組成物を得ることが
できる。[Effects of the Invention] The present invention is configured as described above, and it is possible to obtain a heat storage material composition that has a clear plateau, has small hysteresis, and has a sufficiently low phase change temperature of 0 to 10°C. .
かくして蓄冷材や冷暖房システム等の用途、殊にヒート
ポンプ式冷暖舅システムにおける利用価値の高い蓄熱材
組成物を完成することができた。In this way, we were able to complete a heat storage material composition that has high utility value in applications such as cold storage materials and air conditioning systems, particularly in heat pump type cooling and heating systems.
第１図（ａ）〜（ｄ）は実施例及び比較例に係る蓄熱材
組成物の相変化特性を示すグラフである。FIGS. 1(a) to 1(d) are graphs showing phase change characteristics of heat storage material compositions according to Examples and Comparative Examples.
Claims (1)
を加えて安定化した蓄熱材組成物に、ＮＨ＿４Ｃｌを１
５〜１９重量％加えたことを特徴とするヒステリシスが
少なく、明確なプラトーを持つ蓄熱材組成物。Add 1 NH_4Cl to a heat storage material composition containing Na_2SO_4・10H_2O as a main component and stabilized by adding a thickener.
A heat storage material composition with little hysteresis and a clear plateau, characterized by containing 5 to 19% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63247660A JPH0292988A (en) | 1988-09-30 | 1988-09-30 | Heat-storing material composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63247660A JPH0292988A (en) | 1988-09-30 | 1988-09-30 | Heat-storing material composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0292988A true JPH0292988A (en) | 1990-04-03 |
Family
ID=17166777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63247660A Pending JPH0292988A (en) | 1988-09-30 | 1988-09-30 | Heat-storing material composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0292988A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0620261A1 (en) * | 1993-04-12 | 1994-10-19 | Mitsubishi Chemical Corporation | Latent heat storage material composition |
| EP0659863A1 (en) * | 1993-12-24 | 1995-06-28 | Mitsubishi Chemical Corporation | Latent heat storage material composition |
| US5882542A (en) * | 1993-02-12 | 1999-03-16 | Sumitomo Chemical Company, Limited | Sodium sulfate base heat-storage composition and process for producing the same |
| US10881138B2 (en) | 2012-04-23 | 2021-01-05 | British American Tobacco (Investments) Limited | Heating smokeable material |
| US11659863B2 (en) | 2015-08-31 | 2023-05-30 | Nicoventures Trading Limited | Article for use with apparatus for heating smokable material |
| US11672279B2 (en) | 2011-09-06 | 2023-06-13 | Nicoventures Trading Limited | Heating smokeable material |
| US11896055B2 (en) | 2015-06-29 | 2024-02-13 | Nicoventures Trading Limited | Electronic aerosol provision systems |
| US11924930B2 (en) | 2015-08-31 | 2024-03-05 | Nicoventures Trading Limited | Article for use with apparatus for heating smokable material |
| US12016393B2 (en) | 2015-10-30 | 2024-06-25 | Nicoventures Trading Limited | Apparatus for heating smokable material |
-
1988
- 1988-09-30 JP JP63247660A patent/JPH0292988A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5882542A (en) * | 1993-02-12 | 1999-03-16 | Sumitomo Chemical Company, Limited | Sodium sulfate base heat-storage composition and process for producing the same |
| EP0620261A1 (en) * | 1993-04-12 | 1994-10-19 | Mitsubishi Chemical Corporation | Latent heat storage material composition |
| US5453213A (en) * | 1993-04-12 | 1995-09-26 | Mitsubishi Petrochemical Co., Ltd. | Latent heat storage material containing Na2 SO4.10H2 O, NH4 Cl, NaCl and (NH4)2 SO4 |
| EP0659863A1 (en) * | 1993-12-24 | 1995-06-28 | Mitsubishi Chemical Corporation | Latent heat storage material composition |
| US5567346A (en) * | 1993-12-24 | 1996-10-22 | Mitsubishi Chemical Corporation | Latent heat storage material composition |
| US11672279B2 (en) | 2011-09-06 | 2023-06-13 | Nicoventures Trading Limited | Heating smokeable material |
| US12041968B2 (en) | 2011-09-06 | 2024-07-23 | Nicoventures Trading Limited | Heating smokeable material |
| US10881138B2 (en) | 2012-04-23 | 2021-01-05 | British American Tobacco (Investments) Limited | Heating smokeable material |
| US11896055B2 (en) | 2015-06-29 | 2024-02-13 | Nicoventures Trading Limited | Electronic aerosol provision systems |
| US11659863B2 (en) | 2015-08-31 | 2023-05-30 | Nicoventures Trading Limited | Article for use with apparatus for heating smokable material |
| US11924930B2 (en) | 2015-08-31 | 2024-03-05 | Nicoventures Trading Limited | Article for use with apparatus for heating smokable material |
| US12016393B2 (en) | 2015-10-30 | 2024-06-25 | Nicoventures Trading Limited | Apparatus for heating smokable material |
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