Abstract: A method for determining a quantity representative of the thermal resistance of a dividing wall between a first environment and a second environment, including, over at least two successive time periods Dk corresponding to distinct heating powers Pk of the first environment, measuring the heat flow rate through the wall qk and the temperature in the first environment T1k and determining the temperature in the second environment T2k, at closely spaced time intervals; the quantity representative of the thermal resistance of the wall being determined by bringing into convergence: a thermal model expressing the temporal variation of a temperature in one environment divided off from another environment by a wall, as a function of the heat flow rats: through the wall, the temperature in the other environment, and physical parameters of the wall; and the measured evolution T1k(t) of the temperature in the first environment over time.

Abstract: This method, which is aimed at determining a quantity representative of the thermal resistance of a dividing wall between a first environment and a second environment, comprises steps in which over at least two successive time periods Dk corresponding to distinct heating powers Pk of the first environment, there is undertaken a campaign of measurements of the heat flow rate through the wall qk and of the temperature in the first environment T1k at closely spaced time intervals, as well as the determination of the temperature in the second environment T2k at closely spaced time intervals; the value of the quantity representative of the thermal resistance of the wall is determined by bringing into convergence: on the one hand, a thermal model expressing the temporal variation of the temperature in one environment divided off from another environment by a wall, as a function of the heat flow rate through the wall, of the temperature in the other environment and of physical parameters of the wall, on the basis of