Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fabrication and stability of form-stable diatomite/paraffin phase change material composites
Highlights Absorption mechanisms for diatomite/paraffin composites were investigated. Paraffin leakages of diatomite/paraffin composites were determined quantitatively. An effective surface modification method was proposed to prevent paraffin leakage. Thermal behaviors of diatomite/paraffin composites and Micronal were studied.
Abstract In this study, three grades of diatomite particles, DP1, DP2 and DP3, were used to produce phase change material composites, DP1P, DP2P and DP3P, by absorbing paraffin into the pores of diatomite particles. The absorption mechanism of the finest DP1 was found to be different with that of DP2 and DP3. In addition to absorption mechanism, stability of the composites was also investigated. However, a significant amount, up to 67%, of paraffin leaked from the composites when they were used in concrete mixture directly. In order to prevent the leakage, a surface-modification method was proposed and promising results were achieved. Thermal behaviors of concrete panels incorporating with DP1P and Micronal were then compared with a control one. The results indicate that addition of PCM composites improves the thermal inertia.
Fabrication and stability of form-stable diatomite/paraffin phase change material composites
Highlights Absorption mechanisms for diatomite/paraffin composites were investigated. Paraffin leakages of diatomite/paraffin composites were determined quantitatively. An effective surface modification method was proposed to prevent paraffin leakage. Thermal behaviors of diatomite/paraffin composites and Micronal were studied.
Abstract In this study, three grades of diatomite particles, DP1, DP2 and DP3, were used to produce phase change material composites, DP1P, DP2P and DP3P, by absorbing paraffin into the pores of diatomite particles. The absorption mechanism of the finest DP1 was found to be different with that of DP2 and DP3. In addition to absorption mechanism, stability of the composites was also investigated. However, a significant amount, up to 67%, of paraffin leaked from the composites when they were used in concrete mixture directly. In order to prevent the leakage, a surface-modification method was proposed and promising results were achieved. Thermal behaviors of concrete panels incorporating with DP1P and Micronal were then compared with a control one. The results indicate that addition of PCM composites improves the thermal inertia.
Fabrication and stability of form-stable diatomite/paraffin phase change material composites
Li, Xiangyu (Autor:in) / Sanjayan, Jay G. (Autor:in) / Wilson, John L. (Autor:in)
Energy and Buildings ; 76 ; 284-294
28.02.2014
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Preparation method of liquid paraffin/diatomite capsule phase change material and obtained material
| Europäisches Patentamt | 2020
| British Library Online Contents | 2014