Abstract
The present study proposes a high-performance thermal insulator using a functional fibrous material of high reflectivity for thermal radiation, and the performance of thermal insulation was experimentally investigated for the glass fiber having aluminum powder on its surface as one of such functional fibrous materials. The heat transfer coefficient was measured in a rectangular cavity for vacancy, glass wool, glass wool with aluminum powder and glass wool with multilayer of aluminum foil. The experimental results showed that radiation heat transfer has serious effects on the performance of thermal insulator and that glass wool with aluminum powder is effective in thermal insulation.
