Natural Materials for Thermal Insulation: Mulch and Lava-Rock Characterizations
| Autor: | Craig D. Adams, Mario A. Medina, Frédéric Miranville, Aurélien Jean |
|---|---|
| Přispěvatelé: | Physique et Ingénierie Mathématique pour l'Énergie, l'environnemeNt et le bâtimenT (PIMENT), Université de La Réunion (UR), University of Kansas [Kansas City] |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Brick
Materials science Mulch [SPI.GCIV.CD]Engineering Sciences [physics]/Civil Engineering/Construction durable Building insulation business.industry Lava Natural materials General Medicine 7. Clean energy Thermal conductivity Heat flux Thermal insulation Lava-Rock Thermal [PHYS.MECA.THER]Physics [physics]/Mechanics [physics]/Thermics [physics.class-ph] Geotechnical engineering Composite material business Thermal characterization Construction [SPI.GCIV.EC]Engineering Sciences [physics]/Civil Engineering/Eco-conception |
| Zdroj: | Applied Mechanics and Materials Applied Mechanics and Materials, Trans Tech Publications, 2014, Machinery Electronics and Control Engineering IV, 705, pp.8-13. ⟨10.4028/www.scientific.net/AMM.705.8⟩ |
| ISSN: | 1660-9336 1662-7482 |
| Popis: | This paper reports on the thermal characterization, via the thermal conductivity, of natural materials, such as mulch and lava rock and their usefulness as building insulation. Experiments were carried out using a scale one monitored wall (i.e. heat flux and temperature sensors) exposed to a heating source on one side and to an air conditioned space on the other. The wall system was composed of an 8.85 cm thick cavity, where the mulch and lava rock were placed. The cavity was enclosed between two layers of pine wood (40 mm thick each). After the experiments and statistical data manipulation, the estimated thermal conductivity of the materials were 0.48 ± 0.001 W.m-1.K-1 and 0.129 ± 0.003 W.m-1.K-1 for mulch and lava-rock, respectively. That is, mulch has a thermal conductivity comparable to that of bulk hemp while lava rock has a thermal conductivity comparable to that of hemp brick. These values indicate the usefulness of mulch, compared to the impracticality of using lava-rocks materials for building insulation. |
| Databáze: | OpenAIRE |
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