Analysis of Specificity of ecological insulation material thermal Parameters

Abstract

This paper is devoted to analysis of insulation materials quality and characteristics, method for the determination of thermal conductivity coefficient and the influence of various factors on the thermal conductivity coefficient. The paper summarizes the estimated process consumption of thermal energy. The research is defined experimental hemp fiber-sheaves insulation plates manufactured in Latvia further specified actual parameter and quality water absorption; thickness changes; drying process; thermal conductivity coefficient; thermal conductivity coefficient depending from moisture. Research is made using experimental hemp fiber-sheaves insulation pattern manufactured in Latvia – plates in size 300 x 300 mm. In research totally are used three hemp fiber-sheaves pattern series with different substance and extrusion modes. Each series consist from four plate with different thickness. As result of research is determined hemp fiber-sheaves insulation pattern Water absorption, dynamics of Drying process, Thickness changes, Thermal conductivity coefficient and Thermal conductivity coefficient depending from moisture.

Effects of the Coupling of Insulating and Conductive Materials to Limit the Temperature at Chimney-Roof Penetration

“…For example, the roof in which a chimney is installed can be very thick and very insulating. Nowadays, roofs can be made of standard materials but also materials based on biomass such as cellulose [23,24], wood fiber [25], hemp [26], and straw [27], whose self ignition temperature may be very low. For example, wood self ignition temperature was defined ranging between 250°C and 300 C for short time exposure [28], 66 C in [29,30], and 100 C [31].…”