A thermal simulation method based on the thermal resistance/ inertia coupling

This paper concerns a thermal diagnosis method for buildings in a dynamic state that is capable of predicting energy behavior in summer and winter by implementing a calculation tool based on the representation of building components through a resistance/thermal inertia couple. The internal temperature has been identified only by the coefficients that couple weather conditions, building envelope properties, and internal generation, making the thermal analysis of the building simple and efficient. This helps decision-makers, designers, and non -energy professionals create energy balances by respecting all physical phenomena, such as thermal inertia, orientation, and changing weather conditions, without having to calculate the heat flow in steady-state (with the U value), which does not take into consideration the term of storage or calculate with other programs that require time, know-how, and training in physics.To demonstrate the effect of thermal inertia on the internal temperature, the results were tested and compared to the steady-state (as adopted by the Moroccan thermal regulation RTCM 2012). The results showed a deviation of about 7 degrees C at the peak of the temperature distribution, which will influence the thermal design of the building in terms of air renewal, glazing, and building orientation.