New formulation and characterization of enhanced bulk-organic phase change materials
Impacte
Scholar |
Altres documents de l'autoria: Palacios, Anabel; De Gracia, Álvaro; CABEZA, LUISA F.; Juliá Bolívar, José Enrique; Fernández, A. Inés; Barreneche, Camila
Metadades
Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7035
comunitat-uji-handle3:10234/8617
comunitat-uji-handle4:
INVESTIGACIONAquest recurs és restringit
https://doi.org/10.1016/j.enbuild.2018.01.069 |
Metadades
Títol
New formulation and characterization of enhanced bulk-organic phase change materialsAutoria
Data de publicació
2018-02-14Cita bibliogràfica
PALACIOS, Anabel; DE GRACIA, Álvaro; CABEZA, Luisa F.; JULIÁ BOLÍVAR, José Enrique; FERNÁNDEZ, A. Inés; BARRENECHE, Camila. New formulation and characterization of enhanced bulk-organic phase change materials. Energy and Buildings (2018), v. 167, p. 38-48Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
https://www.sciencedirect.com/science/article/pii/S037877881730230XVersió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
The main drawbacks faced by researchers to successfully implement organic-PCM as materials to improve the thermal performance of building systems are their low thermal conductivity, their high flammability, and their ... [+]
The main drawbacks faced by researchers to successfully implement organic-PCM as materials to improve the thermal performance of building systems are their low thermal conductivity, their high flammability, and their low thermal cycling stability. In the present work, authors present a new enhanced PCM formulations aimed to solve the stated disadvantages in organic bulk-PCM. The new enhanced PCMs were prepared by adding high thermal conductivity particles and two kinds of flame retardants into organic PCM (paraffin and fatty acid eutectic mixtures). In the first stage, the effective thermal conductivity of organic-PCM was increased by using two different methods: directly dispersion of powder graphite (PG) bulk-PCM and vacuum impregnation of PCM into expanded graphite (EG). In the second stage, the fire reaction behaviour of the thermal conductivity enhanced PCM formulations was improved by adding two kind of flame retardants: magnesium hydroxide and ammonium phosphate (APP). Their fire reaction behaviour, thermal conductivity and thermophysical properties were measured by adapting the dripping test (UNE 23727-90), the hot-wire method and Differential Scanning Calorimetry (DSC), respectively. The enhanced PCM composites show a self-extinguished behaviour in terms of fire performance mechanism. The EG working with endothermic and phosphates flame retardants improve the fire performance of PCM by acting as a synergic system and the thermal conductivity is increased. However, their thermal storage capacity is significant decreased due to the large amount of flame retardant added (up to 40%). The thermal reliability was also tested, the enhanced PCM composites were stable up to 1000 thermal cycles. [-]
Publicat a
Energy and Buidings (2018), v. 167Drets d'accés
http://rightsstatements.org/vocab/CNE/1.0/
info:eu-repo/semantics/restrictedAccess
info:eu-repo/semantics/restrictedAccess
Apareix a les col.leccions
- EMC_Articles [807]