WO1997027265B1 - Reversible liquid/solid phase change compositions - Google Patents
Reversible liquid/solid phase change compositionsInfo
- Publication number
- WO1997027265B1 WO1997027265B1 PCT/US1997/001355 US9701355W WO9727265B1 WO 1997027265 B1 WO1997027265 B1 WO 1997027265B1 US 9701355 W US9701355 W US 9701355W WO 9727265 B1 WO9727265 B1 WO 9727265B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- composition
- nucleator
- thermal energy
- phase change
- solid phase
- 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.)
- Ceased
Links
Abstract
Eutectic compositions of hydrated magnesium nitrate and either or both of sodium and potassium nitrate, as shown in the figure, are described and are useful as reversible liquid/solid phase change materials.
Claims
1. A reversible liquid/solid phase change
composition comprising a substantially eutectic binary mixture of magnesium nitrate hexahydrate and sodium nitrate.
2. The composition of claim 1 wherein said binary mixture is comprised of about 6 to about 9 weight percent sodium nitrate and about 91 to about 94 weight percent hydrated magnesium nitrate.
3. The composition of claim 2 which has a melting point of about 83ºC.
4. The composition of claim 1 and also comprising a nucleator, said composition having an average
supercooling of about 2ºC or less.
5. The composition of claim 2 and also comprising a nucleator, said composition having an average
supercooling of about. 2ºC or less.
6. This composition of claim 4 wherein said nucleator is magnesium hydroxide.
7. The composition of claim 5 wherein said nucleator is magnesium hydroxido.
8. A reversible liquid/solid phase change
composition comprising a substantially euteclic binary mixture of magnesium nitrate hexahydrate and potassium nitrate.
9. The composition of claim 8 wherein said binary mixture is comprised of about 24 to about 26 weight percent potassium nitrate and about 74 to about 76 weight percent hydrated magnesium nitrate.
10. The composi tion of claim 9 which has a meltlng point of about. 77°C.
11. The composition of claim 8 and also comprising a nucleator, said composition having an average
supercooling of about 2ºC or less.
12. The composition of claim 9 and also comprising a nucleator, sa id composition having a n average
supercooIing of about 2ºC or less.
13. The composition of claim 11 wherein said
nucleator is magnesium hydroxide.
14. The composition of claim 12 wherein said
nucleator is magnesium hydroxide.
15. A reversible Iiquid /solid phase change
composition comprising a substantially eutectic ternary mixture of magnesium nitrate hexahydrate, sodium nitrate, and potassium nitrato.
16. The composition of claim 1 wherein said ternary mixtυre is comprised of about 6 to about 8 weight percent sodium nltrate. about 23 to about 26 weight percent potassium nitrate and about 67 to about 71 weight percent. hydrated magnesium nitrate.
17. The composition of claim 16 which has a melting point of about 65 ºC.
18. The composition of claim 15 and also comprising a nucleator.
19. The composition of claim 16 and also comprising a nucleator.
20. The composition of claim 18 wherein said
nucleator is magnesium hydroxide.
21. The composition of claim 19 wherein said
nucleator is magnesium hydroxide.
22 . A method for storing and releasing thermal energy, comprising
charging a reversible liquid/solid phase change composition according to claim 1 with thermal energy, said charging including bringing said composition to a temperature above about 83ºC so as to melt said
composition; and,
thereafter allowing said composition to release thermal energy.
23. A method for storing and releasing thermal energy, comprising:
charging a reversible liquid/solid phase change composition according to claim 8 with thermal energy, said charging including bringing said composition to a temperature above about 71ºC so as to melt said composition; and,
thereafter allowing said composition to release thermal energy.
24. A method for storing and releasing thermal energy, comprising:
charging a reversible liquid/solid phase change composition according to claim 15 with thermal energy, said charging including bringing said composition to a temperature above about 65°C so as to melt said composition; and,
thereafter allowing said composition to release thermal energy.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/589,927 US5785884A (en) | 1996-01-23 | 1996-01-23 | Reversible liquid/solid phase change compositions |
| US08/589,927 | 1996-01-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1997027265A1 WO1997027265A1 (en) | 1997-07-31 |
| WO1997027265B1 true WO1997027265B1 (en) | 1997-08-28 |
Family
ID=24360145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1997/001355 Ceased WO1997027265A1 (en) | 1996-01-23 | 1997-01-23 | Reversible liquid/solid phase change compositions |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US5785884A (en) |
| WO (1) | WO1997027265A1 (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5976400A (en) * | 1997-09-19 | 1999-11-02 | Thermo Solutions, Inc. | Phase change material and use |
| US6083418A (en) * | 1998-06-02 | 2000-07-04 | Modine Manufacturing Company | Density stabilized phase change material |
| EP0962513B1 (en) * | 1998-06-02 | 2003-04-16 | Modine Manufacturing Company | Density stabilized phase change material |
| US6784356B1 (en) | 1999-04-09 | 2004-08-31 | Modine Manufacturing Company | Phase change material with inhibitor and a method of making the same |
| DE19946065A1 (en) | 1999-09-25 | 2001-04-26 | Merck Patent Gmbh | Salt mixtures for storing thermal energy in the form of phase change heat and their application |
| US6574971B2 (en) * | 2000-07-03 | 2003-06-10 | Galen J. Suppes | Fatty-acid thermal storage devices, cycle, and chemicals |
| US7160612B2 (en) | 2000-09-21 | 2007-01-09 | Outlast Technologies, Inc. | Multi-component fibers having enhanced reversible thermal properties and methods of manufacturing thereof |
| US7244497B2 (en) | 2001-09-21 | 2007-07-17 | Outlast Technologies, Inc. | Cellulosic fibers having enhanced reversible thermal properties and methods of forming thereof |
| US6793856B2 (en) | 2000-09-21 | 2004-09-21 | Outlast Technologies, Inc. | Melt spinable concentrate pellets having enhanced reversible thermal properties |
| WO2002024830A2 (en) | 2000-09-21 | 2002-03-28 | Outlast Technologies, Inc. | Stable phase change materials for use in temperature regulating synthetic fibers, fabrics and textiles |
| US6855422B2 (en) * | 2000-09-21 | 2005-02-15 | Monte C. Magill | Multi-component fibers having enhanced reversible thermal properties and methods of manufacturing thereof |
| WO2002059414A2 (en) | 2001-01-25 | 2002-08-01 | Outlast Technologies, Inc. | Coated articles having enhanced reversible thermal properties and exhibiting improved flexibility, softness, air permeability, or water vapor transport properties |
| US9434869B2 (en) | 2001-09-21 | 2016-09-06 | Outlast Technologies, LLC | Cellulosic fibers having enhanced reversible thermal properties and methods of forming thereof |
| JP2011527740A (en) * | 2008-02-22 | 2011-11-04 | ダウ グローバル テクノロジーズ エルエルシー | Heat storage device |
| US9873305B2 (en) | 2008-02-22 | 2018-01-23 | Dow Global Technologies Inc. | Heater module including thermal energy storage material |
| KR101620112B1 (en) * | 2008-02-22 | 2016-05-11 | 다우 글로벌 테크놀로지스 엘엘씨 | Thermal energy storage materials |
| US9038709B2 (en) | 2008-02-22 | 2015-05-26 | Dow Global Technologies Llc | Thermal energy storage materials |
| US7600506B2 (en) | 2008-03-12 | 2009-10-13 | ITB Group Ltd | Fuel tank having improved thermal stability |
| US8354040B1 (en) | 2010-05-14 | 2013-01-15 | The United States Of America As Represented By The Secretary Of Agriculture | Carbonate phase change materials |
| US11306238B2 (en) * | 2019-10-03 | 2022-04-19 | King Fahd University Of Petroleum And Minerals | Shape-stabilized phase change materials for energy storage |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB365623A (en) * | 1930-10-16 | 1932-01-18 | James Vernon Martin | Improvements in motor road vehicles |
| US4272392A (en) * | 1979-11-02 | 1981-06-09 | The Dow Chemical Company | Hydrated Mg(NO3)2 /MgCl2 reversible phase change compositions |
| US4271029A (en) * | 1979-11-02 | 1981-06-02 | The Dow Chemical Company | Hydrated Mg(NO3)2 reversible phase change compositions |
| US4273666A (en) * | 1979-11-02 | 1981-06-16 | The Dow Chemical Company | Hydrated Mg(NO3)2 reversible phase change compositions |
| US4272391A (en) * | 1979-11-02 | 1981-06-09 | The Dow Chemical Company | Hydrated Mg(NO3)2 reversible phase change compositions |
| US4283298A (en) * | 1979-11-02 | 1981-08-11 | The Dow Chemical Company | Hydrated Mg(NO3)2 /NH4 NO3 reversible phase change compositions |
| EP0365623B1 (en) * | 1988-03-30 | 1993-10-06 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Phase-transition material for storing heat in the form of latent heat of transformation |
-
1996
- 1996-01-23 US US08/589,927 patent/US5785884A/en not_active Expired - Lifetime
-
1997
- 1997-01-23 WO PCT/US1997/001355 patent/WO1997027265A1/en not_active Ceased
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO1997027265B1 (en) | Reversible liquid/solid phase change compositions | |
| CA2125687C (en) | Salt mixtures for storing thermal energy in the form of heat of phase transformation | |
| PL285506A1 (en) | Composition able to accmulate phase transition heat and method of obtaining such composition | |
| US5785884A (en) | Reversible liquid/solid phase change compositions | |
| KR960701816A (en) | Ignition composition for expansion gas generator | |
| CA2409266C (en) | Carboxylate salts in heat-storage applications | |
| JP2001164242A (en) | Mixed salts and their use for storing thermal energy in the form of phase transition heat | |
| JPS6317313B2 (en) | ||
| CA1288236C (en) | Latent heat store | |
| CA2487239A1 (en) | Heat-storage means | |
| CA1046261A (en) | Quaternary eutectic salt mixture containing lif | |
| JPS604583A (en) | Latent thermal energy storage material | |
| JPS57139168A (en) | Heat-accumulating agent composition | |
| JPS6221038B2 (en) | ||
| JPS63137982A (en) | Heat storage material composition | |
| CA2215906A1 (en) | Reversible hydrated magnesium chloride phase change compositions for storing energy | |
| US4009112A (en) | Pelletized rectifier for molten neutral salt baths and method | |
| JPS6251992B2 (en) | ||
| CA2529433A1 (en) | Hydrogen storage materials | |
| HU198001B (en) | Additive compositions for ammonium-nitrate-containing explosive materials | |
| SU554074A1 (en) | Exothermic mixture for warming the ingot head and method of its preparation | |
| CA2160469A1 (en) | Micropyretically Produced Components of Aluminium Production Cells | |
| CA2060215A1 (en) | Calcium chloride hexahydrate formulations for low temperature heat storage application | |
| JPS6270480A (en) | Latent heat energy accumulator | |
| JPH0443949B2 (en) |