An energetic-environmental building simulation model in transient state aimed at comfort evaluations

Through the paper a model simulating the thermal performances of an environment in transient state is presented. The model is composed by two codes that, used in sequence, concur to obtain evaluation, at a local level, of the most used comfort indexes, starting from the acquaintance of the external climatic conditions and of the thermal-physical characteristics of the building envelope. The model estimates, at the same time, energy consumption necessary to maintain prefixed environmental conditions. A validation procedure, carried out according to a method proposed in a recent european standard, is also reported.