Global warming potential is one of the most important life cycle assessment indicator, which shows how much heat a greenhouse gas traps in atmosphere relative to CO2. In this study, we calculated global highly insulated building construction detail residential nearly-zero energy based on numerical simulations. To calculate loss constructions, necessary for estimating operational demand use phas...

Wood-based thermal insulation materials have interesting hygroscopic characteristics because of their high moisture capacity. The present paper investigates the conditions in wood-frame walls with wood fibre insulation. effect forced convection moist air into construction is studied particular. Laboratory measurements were carried out on a full-scale wall model divided five sections various con...

This paper presents structures of timber-framed walls designed for passive houses, using natural and waste resources as insulation materials, such wool, wood fibers, ground paper, reeds (Phragmites communis), Acrylonitrile Butadiene Styrene (ABS) wastes. The systems stud composed wool–ABS composite boards five types fillers (wool, ABS, reeds) were investigated to reach U-value requirements hous...

Abstract Woodworkers darken wood by reacting iron in solution with tannins the to form blue–black phenolate complexes, a process called ebonizing. According literature, darkness and color are controlled tannin concentration (higher, darker) counterion of (acetate, darker). Iron acetate is not readily available, so woodworkers prepare it woodshop steel wool vinegar. This reaction was studied. Pr...

This paper studied the wool and alpaca fibre curvature and its variation during the fibre processing. It revealed the effect of wool fibre crimp on the cohesion properties of alpaca and wool blended slivers. Different wool and alpaca tops were blended via a number of gillings, and the role of wool fibre curvature in alpaca/wool blend processing has also been investigated. During the wool fibre ...