Method and arrangement for determining thermal conductivity in building walls

摘要

The invention relates to the in situ determination of thermal conductivity of building walls, according to a non-steady state method. It is distinguished in that the heating power of a cylindrical heater arranged in the wall is completely transmitted to the building part to be measured and the temperature/time profiles measured at various locations on the wall surface are used for numerical evaluation of thermal conductivity (including possible position dependence thereof). <IMAGE>