Science – Future of Lithuania / Mokslas – Lietuvos Ateitis, Vol 3, No 5 (2011)

Studies on the Thermal Conductivity of Composite Materials Based on Local Renewable Resources

Giedrius Balčiūnas
Sigitas Vėjelis
Saulius Vaitkus

Abstract


Thermal insulation materials produced from local renewable resources are increasingly used for two reasons – they are environmentally friendly and their manufacture requires less amount of energy. The most renewable resources include a wide variety of crop straw – barley, rye, wheat, triticale, etc. the thermal conductivity of which depends on their orientation to the product and structure of the same straw.
For specimen composition, the straw stems of bulrush, reeds, bent and triticales were used, producing composites with the mass ratio of 1:1.
The paper analyses the results of thermal conductivity tests on different stem composites of herbaceous plants. Thermal conductivity was investigated considering composition specimens such as bulrush-reeds, bulrush-bent, bulrush-straw, reed-straw, reed-bent. The use of composites in all cases reduced thermal conductivity compared with the thermal conductivity of materials used alone. The greatest reduction in thermal conductivity compared with the thermal conductivity of the single straws of herbaceous plants has been observed in bulrush-straw composites.

Article in Lithuanian


Article in: Lithuanian

Article published: 2011-12-19

Keyword(s): local renewable resources; composite thermal insulation

DOI: 10.3846/mla.2011.091

Full Text: PDF pdf

Science – Future of Lithuania / Mokslas – Lietuvos Ateitis ISSN 2029-2341, eISSN 2029-2252
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 License.