JP5002912B2 - 蓄熱材及びその製造方法 - Google Patents
蓄熱材及びその製造方法 Download PDFInfo
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- JP5002912B2 JP5002912B2 JP2005150928A JP2005150928A JP5002912B2 JP 5002912 B2 JP5002912 B2 JP 5002912B2 JP 2005150928 A JP2005150928 A JP 2005150928A JP 2005150928 A JP2005150928 A JP 2005150928A JP 5002912 B2 JP5002912 B2 JP 5002912B2
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- heat storage
- storage material
- expanded graphite
- phase change
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- 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
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- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Description
(1) 相変化物質と膨張黒鉛とを含み、容積比で1〜40%の空隙を含むことを特徴とする蓄熱材。
(2) 相転移温度が10〜70℃の範囲内である相変化物質を含む(1)記載の蓄熱材。
(3) 相変化物質に炭素数が15以上のアルカンを用いた(1)又は(2)記載の蓄熱材。
(4) 相転移温度の異なる2種類以上の相変化物質を混合してなる(1)〜(3)のいずれかに記載の蓄熱材。
(5) 膨張黒鉛が、かさ密度が0.002〜0.02g/cm3の未粉砕の膨張黒鉛と、膨張黒鉛シートを粉砕したかさ密度が0.02〜0.20g/cm3の膨張黒鉛粉砕粉の混合物からなる(1)〜(4)のいずれかに記載の蓄熱材。
(6) 相変化物質の限界吸収量が、体積比で500〜8000%である膨張黒鉛を使用することを特徴とする(1)〜(5)のいずれかに記載の蓄熱材。
(7) 膨張黒鉛に対する限界吸収量の5〜90Vol.%の相変化物質を含むことを特徴とする(1)〜(6)のいずれかに記載の蓄熱材。
(8) かさ密度が、0.4〜1.2g/cm3である(1)〜(7)のいずれかに記載の蓄熱材。
(9) 筐体で包み込むことを特徴とする(1)〜(8)のいずれかに記載の蓄熱材。
(10) 厚さ0.5mm以下のフィルムで密閉したことを特徴とする(1)〜(8)のいずれかに記載の蓄熱材。
上記膨張黒鉛粉砕粉の混合比は、全膨張黒鉛に対する重量比で0〜90%であることが好ましい。90%よりも大きい場合には、膨張黒鉛と相変化物質の分離が発生する。さらに好ましい範囲は10〜80%である。
プレス機等を用いて膨張黒鉛、相変化物質混合物を圧縮すると蓄熱材の成形体を得ることが出来る。
実施例1〜7、比較例1〜4
日立化成製−膨張黒鉛(HGP)に溶融したパラフィンの一種である融点20〜23℃のヘプタデカン(和光純薬製;C17H36)を徐々に加えていき、軽く圧力をかけた際に膨張黒鉛からヘプタデカンが染み出てくるかどうかを目視で確認し、膨張黒鉛に吸収されるヘプタデカンの限界吸収量の測定を行った。また、スクリュー押出機を用いて圧縮した上記膨張黒鉛、及び上記膨張黒鉛をシート化した膨張黒鉛シート(HGP−5)粉砕粉についても同様の測定を行った。各試験条件のn数は3で、平均値を結果とした。測定結果を表1及び表2に示す。
Claims (10)
- 相変化物質と膨張黒鉛とを含み、容積比で1〜40%の空隙を含むことを特徴とする蓄熱材。
- 相転移温度が10〜70℃の範囲内である相変化物質を含む請求項1記載の蓄熱材。
- 相変化物質に炭素数が15以上のアルカンを用いた請求項1又は2記載の蓄熱材。
- 相転移温度の異なる2種類以上の相変化物質を混合してなる請求項1〜3のいずれかに記載の蓄熱材。
- 膨張黒鉛が、かさ密度が0.002〜0.02g/cm3の未粉砕の膨張黒鉛と、膨張黒鉛シートを粉砕したかさ密度が0.02〜0.20g/cm3の膨張黒鉛粉砕粉の混合物からなる請求項1〜4のいずれかに記載の蓄熱材。
- 相変化物質の限界吸収量が、体積比で500〜8000%である膨張黒鉛を使用することを特徴とする請求項1〜5のいずれかに記載の蓄熱材。
- 膨張黒鉛に対する限界吸収量の5〜90Vol.%の相変化物質を含むことを特徴とする請求項1〜6のいずれかに記載の蓄熱材。
- かさ密度が、0.4〜1.2g/cm3である請求項1〜7のいずれかに記載の蓄熱材。
- 筐体で包み込むことを特徴とする請求項1〜8のいずれかに記載の蓄熱材。
- 厚さ0.5mm以下のフィルムで密閉したことを特徴とする請求項1〜8のいずれかに記載の蓄熱材。
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JP2005150928A JP5002912B2 (ja) | 2005-05-24 | 2005-05-24 | 蓄熱材及びその製造方法 |
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JP2005150928A JP5002912B2 (ja) | 2005-05-24 | 2005-05-24 | 蓄熱材及びその製造方法 |
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JP2006328143A JP2006328143A (ja) | 2006-12-07 |
JP5002912B2 true JP5002912B2 (ja) | 2012-08-15 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105408247A (zh) * | 2013-05-29 | 2016-03-16 | Gts有限公司 | 包含高密度压缩和膨胀石墨颗粒的复合石墨绝热材料及其制造方法 |
Families Citing this family (10)
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US8464760B2 (en) * | 2006-08-16 | 2013-06-18 | Samsung Electronic Co., Ltd. | Valve unit, reaction apparatus with the same, and method of forming valve in channel |
KR101007536B1 (ko) * | 2008-07-08 | 2011-01-14 | 백영신 | 고효율 축열식 전열교환기를 구비한 열회수형 환기장치 |
JP2016069392A (ja) * | 2014-09-26 | 2016-05-09 | 株式会社デンソー | 蓄熱材料、触媒ユニット、及び蓄熱システム |
KR101618352B1 (ko) * | 2014-11-07 | 2016-05-04 | 라성에너지(주) | 파라핀계 상변화 물질을 이용한 내열성 축열재 및 이의 제조방법 |
CN109689833A (zh) * | 2016-09-02 | 2019-04-26 | 日立化成株式会社 | 复合构件及其制造方法、蓄热材及其制造方法、蓄热式空调装置、以及蓄热型热管式供油设备 |
CN107233158A (zh) * | 2017-07-05 | 2017-10-10 | 北京航天新材科技有限公司 | 一种相变保暖面罩 |
WO2020021684A1 (ja) * | 2018-07-26 | 2020-01-30 | 日立化成株式会社 | 組成物、シート及び蓄熱材 |
CN113831896B (zh) * | 2020-09-08 | 2024-02-23 | 湖南大学 | 一种用于选择性激光烧结的复合相变粉末材料及其制备方法和应用 |
CN115141609A (zh) * | 2021-03-31 | 2022-10-04 | 国家能源投资集团有限责任公司 | 低取向度储热材料、制备该储热材料的组合物及其制备方法 |
CN115143557B (zh) * | 2022-07-07 | 2023-10-20 | 南京师范大学 | 一种基于非共晶相变材料的蓄冷蓄热辐射板 |
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JPH0496987A (ja) * | 1990-08-14 | 1992-03-30 | Lion Corp | 蓄熱剤組成物 |
JPH08188407A (ja) * | 1995-01-11 | 1996-07-23 | Hitachi Chem Co Ltd | フィラー材 |
JP2003329270A (ja) * | 2002-05-08 | 2003-11-19 | Panahome Corp | 調温換気方法および装置 |
DE10250249A1 (de) * | 2002-10-28 | 2004-05-13 | Sgl Carbon Ag | Mischungen für Wärmespeicher |
JP5048916B2 (ja) * | 2003-09-05 | 2012-10-17 | エスケー化研株式会社 | 蓄熱体 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105408247A (zh) * | 2013-05-29 | 2016-03-16 | Gts有限公司 | 包含高密度压缩和膨胀石墨颗粒的复合石墨绝热材料及其制造方法 |
CN105408247B (zh) * | 2013-05-29 | 2017-10-03 | Gts有限公司 | 包含高密度压缩和膨胀石墨颗粒的复合石墨绝热材料及其制造方法 |
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