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AuthorKarkri, M.
AuthorLachheb, M.
AuthorNógellová, Z.
AuthorBoh, B.
AuthorSumiga, B.
AuthorAlmaadeed, M.A.
AuthorFethi, A.
AuthorKrupa, I.
Available date2022-05-31T19:01:31Z
Publication Date2015
Publication NameEnergy and Buildings
ResourceScopus
Identifierhttp://dx.doi.org/10.1016/j.enbuild.2014.11.061
URIhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84919684175&doi=http://dx.doi.org/10.1016%2fj.enbuild.2014.11.061&partnerID=40&md5=7d9b2f15f5afe814f97a934f477fae13
URIhttp://hdl.handle.net/10576/31887
AbstractMicrocapsules consisting of paraffin wax cores with a melting point of approximately 42 °C and a melamine-formaldehyde resin shell were synthesized using in situ polymerization. These microcapsules have a uniform distribution with a spherical shape and an average diameter of approximately 15 μm. The thickness of the shell was approximately 1.5 μm. Shape-stabilized phase change materials (PCM) based on high-density polyethylene (HDPE) mixed with micro-encapsulated paraffin wax were prepared and investigated for application in thermal energy storage. The distribution of the capsules within the HDPE matrix was uniform without any tendency toward agglomeration. The microencapsulated paraffin wax acts as a high-latent-heat material, whereas the HDPE matrix ensures the compact shape, structural compactness and mechanical strength of the final PCM. The periodic temperature method was used to determine the thermal conductivity and thermal diffusivity of the phase change materials. A guarded hot plate unit was used to determine the latent heats of these phase-change materials. The thermal conductivity and diffusivity of the investigated PCMs decreased as the microcapsule content increased. In contrast, the latent, sensible and total heat of the PCMs increased with the paraffin content.
Languageen
PublisherElsevier Ltd
SubjectEncapsulation
Heat storage
High density polyethylenes
Latent heat
Melamine formaldehyde resins
Microencapsulation
Paraffin waxes
Paraffins
Storage (materials)
Strength of materials
Thermal conductivity
Thermal energy
Average diameter
Guarded hot plates
In-situ polymerization
Microcapsule content
Microencapsulated paraffin
Shape stabilized phase change material
Spherical shape
Uniform distribution
Phase change materials
TitleThermal properties of phase-change materials based on high-density polyethylene filled with micro-encapsulated paraffin wax for thermal energy storage
TypeArticle
Pagination144-152
Volume Number88
dc.accessType Abstract Only


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