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Low-vacuum heat insulating panels based on the byproducts of crystalized silicon
Abstract.The heat insulating materials that reduce the thermal losses of buildings and constructs will play the key role in their energy performance. The low-vacuum insulation panels are an effective alternative to the non-vacuumed heat insulating materials due to the lower coefficient of thermal conductivity. The goal of this research is to examine the potential application of silica fume, aluminum byproduct as a filler for vacuum insulation panel. The author examines the properties of silicon dioxide powder, develops the composition and technology of production of the vacuum heat insulating panels on its basis. The article explores the silica fume – byproduct of crystalized silicon of Bratsk Ferroalloy Plant, which annual putput is 30,000 tons. The acquired results allow assuming that for manufacturing of the low-vacuum insulating panels can be used not only factory produced powder, but also less expansive powders of silica fume – the byproduct of crystalized silicon. In future, the use of byproducts can become the foundation of production of the high-quality vacuum insulation wilt low cost.
Keywords: micro photos, thermal conductivity, aluminum manufacturing wastes, LVIP, differential thermal analysis, X-ray phase analysis, vacuum insulating panels, micro silica, nano-size, energy efficiency
Article was received:03-05-2018
This article written in Russian. You can find full text of article in Russian here .