Thermally Anisotropic Composites for Improving the Energy Efficiency of Building Envelopes
| Autor: | Jerald Allen Atchley, Diana E. Hun, Kaushik Biswas, Som S Shrestha |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Work (thermodynamics)
Control and Optimization Materials science 0211 other engineering and technologies Energy Engineering and Power Technology 02 engineering and technology Heat sink lcsh:Technology peak load reduction thermal anisotropy Thermal thermal management 021108 energy Electrical and Electronic Engineering Composite material Anisotropy Engineering (miscellaneous) energy efficiency lcsh:T Renewable Energy Sustainability and the Environment Isotropy Spray foams 021001 nanoscience & nanotechnology building envelope 0210 nano-technology Building envelope Energy (miscellaneous) Efficient energy use |
| Zdroj: | Energies Volume 12 Issue 19 Pages: 3783 Energies, Vol 12, Iss 19, p 3783 (2019) |
| ISSN: | 1996-1073 |
| DOI: | 10.3390/en12193783 |
| Popis: | This article describes a novel application of thermal anisotropy for improving the energy efficiency of building envelopes. The current work was inspired by existing research on improved heat dissipation in electronics using thermal anisotropy. Past work has shown that thermally anisotropic composites (TACs) can be created by the alternate layering of two dissimilar, isotropic materials. Here, a TAC consisting of alternate layers of rigid foam insulation and thin, high-conductivity aluminum foil was investigated. The TAC was coupled with copper tubes with circulating water that acted as a heat sink and source. The TAC system was applied to a conventional wood-framed wall assembly, and the energy benefits were investigated experimentally and numerically. For experimental testing, large scale test wall specimens were built with and without the TAC system and tested in an environmental chamber under simulated diurnal hot and cold weather conditions. Component-level and whole building numerical simulations were performed to investigate the energy benefits of applying the TAC system to the external walls of a typical, single-family residential building. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |