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WO2018188880A1 - Matériau adiathermique à changement de phase - Google Patents

Matériau adiathermique à changement de phase Download PDF

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Publication number
WO2018188880A1
WO2018188880A1 PCT/EP2018/056385 EP2018056385W WO2018188880A1 WO 2018188880 A1 WO2018188880 A1 WO 2018188880A1 EP 2018056385 W EP2018056385 W EP 2018056385W WO 2018188880 A1 WO2018188880 A1 WO 2018188880A1
Authority
WO
WIPO (PCT)
Prior art keywords
phase change
heat retaining
change heat
retaining material
paraffin
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
Application number
PCT/EP2018/056385
Other languages
English (en)
Inventor
Yusuf YUSUFOGLU
Gokce UGUR ERINC
Nilufer ERTUNCAY
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arcelik AS
Original Assignee
Arcelik AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Arcelik AS filed Critical Arcelik AS
Publication of WO2018188880A1 publication Critical patent/WO2018188880A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
    • C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials

Definitions

  • the present invention relates to a material that changes phase and thus that enables the heat received to be stored and retained.
  • Phase change materials store latent heat occurring during the phase change.
  • Phase change materials can be basically inorganic or organic. Among organic materials paraffin stands out thanks to its high performance and stable structure. Phase change materials with different structures are selected according to the temperature range where said materials are desired to be used. With phase change materials suitable for use at the freezing temperature of water or at negative centigrade degrees being used in household appliances such as refrigerators, etc., the temperature controls can be carried out by means of phase change materials in case of power outages, thus the interior temperature of the cabin can be kept at proper values for a long time and the shelf life of foodstuffs are increased. Moreover, it is anticipated that obtaining the cooling energy required especially at hours when the electrical energy is expensive by using PCMs will provide cost advantage to the user. In the state of the art, since commercially-available PCMs have very high costs, they cannot be used as cost-effective products.
  • the aim of the present invention is the realization of a low-cost phase change material with high performance that is produced by using organic paraffin chains and that changes phase in the similar operating temperatures as the high-cost commercial phase change materials for use in white goods.
  • phase change heat retaining material realized in order to attain the aim of the present invention and explicated in the claims is composed of a mixture of paraffins having two different chain lengths.
  • the phase change heat retaining material of the present invention comprises c10-c13 n-paraffin 5-30% by weight and c14-c20 n-paraffin 95-70% by weight.
  • a low-cost phase change heat retaining material is obtained by mixing the paraffin mixture with water.
  • the water ratio is kept at 40-80% by weight and paraffin ratio at 55-5% by weight.
  • a surfactant 5-15% by weight is added to the mixture. While the phase change feature of the paraffin chains is utilized, the cost of the phase change heat retaining material is decreased by adding water.
  • the enthalpy of the resulting phase change heat retaining material can be between 200 and 300 J/gr, which is higher than that of similar materials.
  • c10-c13 n-paraffin and c14-c20 n-paraffin as paraffin, a material that changes phase between -20 and 10°C according to the ratio of the mixture is obtained.
  • the phase change temperature of the resulting phase change heat retaining material can be controlled according to the ratio of the paraffins.
  • phase change heat retaining materials developed provide a long lifetime of 5-10 hours. While a performance increase of 10% or more is provided compared to similar materials, the production costs are also decrease by half at the least.
  • the phase change heat retaining material can be used especially in refrigerators. Thus, energy efficiency is increased. By using the phase change heat retaining materials in the refrigerators, at least 10% energy saving is provided.
  • phase change heat retaining material of the present invention By means of the phase change heat retaining material of the present invention, product costs are decreased thanks to the use of inorganic salt hydrates, and a material with high enthalpy values and long lifetime is obtained with the additives and mixture ratios used.
  • the phase change heat retaining material of the present invention can be used for at least 2,000 cycles.
  • the phase change heat retaining material (1) of the present invention is a phase change heat retaining material (1) comprising paraffin (2) with a content of c10-c13 n-paraffin 5-30% by weight and c14-c20 n-paraffin 95-70% by weight. By changing the mixture ratios of the paraffin (2) chains, the phase change temperature is controlled.
  • the phase change heat retaining material (1) comprises the paraffin (2) 55-5% by weight, water (3) 40-80% by weight and a surfactant (4) 5-15% by weight.
  • the surfactant (4) is used in the mixture in order to mix the water (3) and the paraffin (2).
  • the surfactant (4) comprises polysorbate 60 or polysorbate 80 30-70% by weight and sorbitan ester 60 or sorbitan ester 80 70-30% by weight.
  • the density of the paraffin (2) used is between 0.5-1 gr/cm3.
  • the phase change material (1) of the present invention is produced by mixing the ingredients for 2-5 hours at 400-700 rpm.
  • phase change heat retaining material (1) of the present invention a phase change heat retaining material (1) that is low cost and that provides the same performance compared to the similar state-of-the-art materials is obtained.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Building Environments (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne un matériau adiathermique à changement de phase (1) qui change de phase autour du point de congélation de l'eau et qui fournit une utilisation à long terme.
PCT/EP2018/056385 2017-04-10 2018-03-14 Matériau adiathermique à changement de phase Ceased WO2018188880A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2017/05272A TR201705272A2 (tr) 2017-04-10 2017-04-10 Bi̇r faz deği̇şti̇ren isi tutucu malzeme
TRA2017/05272 2017-04-10

Publications (1)

Publication Number Publication Date
WO2018188880A1 true WO2018188880A1 (fr) 2018-10-18

Family

ID=61691961

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/056385 Ceased WO2018188880A1 (fr) 2017-04-10 2018-03-14 Matériau adiathermique à changement de phase

Country Status (2)

Country Link
TR (1) TR201705272A2 (fr)
WO (1) WO2018188880A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020134962A1 (en) 2001-03-25 2002-09-26 Benjamin Romero Phase change material for maintaining refrigerated temperatures
JP2009173834A (ja) * 2008-01-28 2009-08-06 Japan Energy Corp パラフィン系蓄熱材組成物
US20140075963A1 (en) 2012-09-14 2014-03-20 Whirlpool Corporation Phase change materials for refrigeration and ice making
US20150034528A1 (en) * 2011-11-01 2015-02-05 Arlène Marcellina Pouw Paraffin wax
DE102013109054A1 (de) * 2013-08-21 2015-02-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Paraffin-in-Wasser-Dispersion mit verringertem Unterkühlungseffekt sowie Verfahren zu deren Herstellung
US20150203734A1 (en) * 2012-08-10 2015-07-23 Jsr Corporation Heat storage material composition
US20160114646A1 (en) * 2013-06-03 2016-04-28 Denso Corporation Cold storage heat exchanger

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020134962A1 (en) 2001-03-25 2002-09-26 Benjamin Romero Phase change material for maintaining refrigerated temperatures
JP2009173834A (ja) * 2008-01-28 2009-08-06 Japan Energy Corp パラフィン系蓄熱材組成物
US20150034528A1 (en) * 2011-11-01 2015-02-05 Arlène Marcellina Pouw Paraffin wax
US20150203734A1 (en) * 2012-08-10 2015-07-23 Jsr Corporation Heat storage material composition
US20140075963A1 (en) 2012-09-14 2014-03-20 Whirlpool Corporation Phase change materials for refrigeration and ice making
US20160114646A1 (en) * 2013-06-03 2016-04-28 Denso Corporation Cold storage heat exchanger
DE102013109054A1 (de) * 2013-08-21 2015-02-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Paraffin-in-Wasser-Dispersion mit verringertem Unterkühlungseffekt sowie Verfahren zu deren Herstellung

Also Published As

Publication number Publication date
TR201705272A2 (tr) 2018-10-22

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