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Ongoing project

Micro-Encapsulated Phase Change Materials in Concrete

In order to make more energy efficient buildings it is important to reduce the energy consumption used for heating and cooling. While the daytime temperature can be too hot for comfort, the temperature at night can be too cold. The resulting need for cooling during the day and heating during the night results in an unnecessary energy consumption that can be greatly reduced by storing the energy from the excess heat during the day and releasing it back at night.

A substance that melts will absorb energy (heat) during the melting process while keeping the temperature constant until it is completely melted. This energy will be released again when the substance solidifies. This process can be used to reduce the unwanted temperature fluctuation inside buildings, utilizing a phase change material (PCM) that melts at a comfortable indoor temperature. Bulk quantities of PCMs are subject to problems that can be avoided by encapsulating the PCM into microcapsules. These microcapsules can then be added to building materials, such as concrete, in order to create a "smart" material suitable for passive house construction. It is however important to solve the problem of reduced material strength due to the incorporation of the PCM.

Addition of micro-encapsulated PCMs has been found to decrease the compressive strength of concrete. Although some speculations have been put forward, very little is actually known about the mechanisms behind this. We aim to discover these mechanisms, in order to optimize the combined mechanical and thermal properties of the concrete. This knowledge can be used to build more energy efficient buildings without adversely affecting their structural integrity.

In addition, we will gain valuable new knowledge about microcapsules. This will also be of great interest for other fields where microcapsules are utilized, e.g., medical and pharmaceutical applications, and the food and cosmetic industry.

This project is financed by the Norwegian Research Council (project number 238198).

There are 4 PhD-candidates working on this project, together with several national and international cooperation partners.

SEM-picture of microcapsules
SEM-picture of microcapsules synthesized by Anna Szczotok.

 

Participants

Publications

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  • Kjøniksen, Anna-Lena; Calejo, Maria Teresa Rebelo; G. Sanfèlix, Susana ; Pilehvar, Shima; Szczotok-Piechaczek, Anna Maria & Cao, Vinh Duy (2019). Advanced Materials - From drug delivery by energy technology to 3D-printing concrete on the Moon.
  • Kjøniksen, Anna-Lena; Calejo, Maria Teresa Rebelo; Cao, Vinh Duy; Pilehvar, Shima; G. Sanfèlix, Susana & Szczotok-Piechaczek, Anna Maria (2019). Advanced Materials - From drug delivery by energy technology to 3D-printing concrete on the Moon.
  • Cao, Vinh Duy (2018). Micro-encapsulated Phase Change Materials in Concrete .
  • Santacruz, Isabel; Romero-Espinosa, A.; G. Sanfèlix, Susana ; Cuesta, A; De la Torre, Ángeles G. & Kjøniksen, Anna-Lena [Show all 7 contributors for this article] (2018). Processing and characterisation of calcium sulphoaluminate ecocements containing Microencapsulated Phase Change Materials.
  • G. Sanfèlix, Susana ; Santacruz, Isabel; Szczotok-Piechaczek, Anna Maria; Ordonez, Luis M.; G. De la Torre, Angeles & Kjøniksen, Anna-Lena (2017). Rheological performance of cement composites with Microencapsulated Phase Change Materials .
  • Cao, Vinh Duy; Pilehvar, Shima; Carlos, Salas Bringas; M. Szczotok, Anna & Kjøniksen, Anna-Lena (2017). The Effect of Microcapsulated Phase Change Materials on Thermal and Mechanical properties of Geopolymer Concrete.
  • Szczotok-Piechaczek, Anna Maria; Serrano, A.; Carmona, Manuel; Kjøniksen, Anna-Lena & Rodriguez, Juan F. (2017). Development of thermoregulating microcapsules having flame retardant properties for building applications.
  • Pilehvar, Shima (2017). Investigating the mechanical properties of geopolymer concrete with incorporated micro-encapsulated phase change materials.
  • Pilehvar, Shima (2017). Investigating the different types of micro-encapsulated phase change materials on the mechanical properties of Geopolymer concrete.
  • Cao, Vinh Duy; Pilehvar, Shima; Salas-Bringas, Carlos; M. Szczotok, Anna & Kjøniksen, Anna-Lena (2017). Smart Geopolymer Concrete Containing Microencapsulated Phase Change Materials for Passive Building Applications.
  • Szczotok-Piechaczek, Anna Maria; Kjøniksen, Anna-Lena; Carmona, Manuel & Rodriguez, Juan F. (2017). Development of thermoregulating microcapsules with cyclotriphosphazene as a flame retardant agent.
  • Pilehvar, Shima (2016). Investigating the mechanical behavior of Geopolymer and Portland cement concrete with incorporated microencapsulate-phase change material.
  • Pilehvar, Shima (2016). Influence of micro-encapsulated phase change materials on the mechanical properties of Geopolymer and Portland cement concretes.
  • Kjøniksen, Anna-Lena (2016). Hva skal til for å gjennomføre et forskningsprosjekt.
  • Szczotok, Anna; Carmona, Manuel; Rodriguez, Juan & Kjøniksen, Anna-Lena (2016). Using fatty acids for developing thermal energy storage materials.
  • Szczotok, Anna; Carmona, Manuel; Rodriguez, Juan F. & Kjøniksen, Anna-Lena (2016). The effect of suspending agent type on thermal and physical properties of thermoregulating microcapsules.
  • Szczotok, Anna; Carmona, Manuel; Rodriguez, Juan F. & Kjøniksen, Anna-Lena (2016). Using fatty acids for money and energy savings.
  • Pilehvar, Shima & Kjøniksen, Anna-Lena (2016). The mechanical behavior of geopolymer and Portland cement concrete with micro-encapsulated PCM.
  • Pilehvar, Shima & Kjøniksen, Anna-Lena (2016). The Effect of Micro-encapsulated Phase Change Materials in Liquid State on Properties of Geopolymer and Portland Cement Concrete.
  • Pilehvar, Shima (2016). Investigating the mechanical properties of Geopolymer concrete with micro-encapsulated phase change materials.
  • Cao, Vinh Duy (2016). Micro-encapsulated Phase Change Materials in Concrete: summarization of data and discussion.
  • Szczotok, Anna (2016). Progress in synthesis of thermoreagulating microcapsules: pilot plant reaction and flame retardant microcapsules.
  • Kjøniksen, Anna-Lena (2016). Micro-encapsulated phase change materials in concrete.
  • Szczotok, Anna (2016). Development of Microcapsules with Thermal Energy Storage (TES) Capability for Concrete Applications.
  • G. Sanfèlix, Susana ; De la Torre, Ángeles G. & Kjøniksen, Anna-Lena (2016). Low CO2 binders with Micro-Encapsulated Phase Change Materials.
  • Cao, Vinh Duy (2016). Micro-encapsulated Phase Change Materials in Concrete.
  • Kjøniksen, Anna-Lena (2016). Faseovergangsmaterialer i Betong.
  • Pilehvar, Shima (2015). Investigating the mechanical behavior of Geopolymer and Portland cement concrete.
  • Kjøniksen, Anna-Lena (2015). Smart Betong.
  • Szczotok, Anna (2015). Progress in synthesis of thermoregulating microcapsules: Optimization of the micro-encapsulation process.
  • Szczotok, Anna (2015). Progress in synthesis of thermoreagulating microcapsules: encapsulation of different PCM and experimental designs.
  • Szczotok, Anna (2015). Progress in synthesis thermoregulating of microcapsules: Optimization of the micro-encapsulation process update.
  • Kjøniksen, Anna-Lena (2014). Superbetong. [Radio]. NRK, Distriktsprogram - Østfold, Morran i Østfold 18.
  • Kjøniksen, Anna-Lena (2014). Forskningsprosjekt med energieffektiv beting på Høgskolen i Østfold. [TV]. Distriktsnyheter Østfold.
  • Kjøniksen, Anna-Lena; Hauge, Bjørn Gitle; Dursun, Kamil & Drøbak, Trond Atle (2014). Rekordstor forskning - 18 millioner til varmeforskning. [Newspaper]. Fredriksstad Blad.
  • Hauge, Bjørn Gitle & Kjøniksen, Anna-Lena (2014). Gjør "gull" av betong. Banebrytende forskning på betongens egenskaper er målsetningen når ingeniøravdelingen tar fatt på Høgskolen i Østfolds største prosjekt noensinne. [Internet]. HiØ Aktielt.

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Published July 5, 2018 11:09 AM - Last modified July 26, 2021 11:13 AM