Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Building Thermal Insulation—Biodegradable Sugarcane and Coconut Fiber
Apparent thermal conductivity, Λ, measurements were conducted on sugarcane and coconut fiber specimens using LaserComp “FOX 304” and Holometrix “Rapid-k” heat-flow meters. Both heat-flow meters were built and operated in accordance with ASTM C 518. The Λ measurements for sugarcane and coconut fiber were investigated over the density ranges 70 to 120 kg/m3 and 40 to 90 kg/m3 over the mean test temperature ranges 18 to 32°C and 13.2 to 21.8°C, respectively.
The experimental results for sugarcane and coconut fiber indicated the general trend associated with that of loose-fill thermal insulation. Using the Method of Least Squares, empirical relationships for calculating Λ. as a function of temperature and density for sugarcane and coconut fiber were developed. The percentage deviation of the measured apparent thermal conductivities from the empirical relation ships was less than ±3% for both sugarcane and coconut fiber.
The results indicated that sugarcane and coconut fiber show minimum Λ at 100 kg/m3 and 80 kg/m3, respectively. The minimum Λ vary with temperature and ranged from 0.046 W/m.K to 0.049 W/m·K and 0.048 W/m·K to 0.049 W/m·K, respectively. The minimum apparent thermal conductivities of both sugarcane and coconut fiber are within the range of those normally associated with building thermal insulation.
Building Thermal Insulation—Biodegradable Sugarcane and Coconut Fiber
Apparent thermal conductivity, Λ, measurements were conducted on sugarcane and coconut fiber specimens using LaserComp “FOX 304” and Holometrix “Rapid-k” heat-flow meters. Both heat-flow meters were built and operated in accordance with ASTM C 518. The Λ measurements for sugarcane and coconut fiber were investigated over the density ranges 70 to 120 kg/m3 and 40 to 90 kg/m3 over the mean test temperature ranges 18 to 32°C and 13.2 to 21.8°C, respectively.
The experimental results for sugarcane and coconut fiber indicated the general trend associated with that of loose-fill thermal insulation. Using the Method of Least Squares, empirical relationships for calculating Λ. as a function of temperature and density for sugarcane and coconut fiber were developed. The percentage deviation of the measured apparent thermal conductivities from the empirical relation ships was less than ±3% for both sugarcane and coconut fiber.
The results indicated that sugarcane and coconut fiber show minimum Λ at 100 kg/m3 and 80 kg/m3, respectively. The minimum Λ vary with temperature and ranged from 0.046 W/m.K to 0.049 W/m·K and 0.048 W/m·K to 0.049 W/m·K, respectively. The minimum apparent thermal conductivities of both sugarcane and coconut fiber are within the range of those normally associated with building thermal insulation.
Building Thermal Insulation—Biodegradable Sugarcane and Coconut Fiber
Manohar, Krishpersad (Autor:in) / Yarbrough, David W. (Autor:in) / Kochhar, Gurmohan S. (Autor:in)
Journal of Building Physics ; 23 ; 263-276
01.01.2000
14 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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