Simplified modelling of air movements inside dwelling room

The need for increasingly sharp modelling of building energy behaviour allowing comfort to be evaluated within a heated, ventilated dwelling room leads Electricite De France ADE Department to develop an air interior movement simulation model. This is a simplified modelling which it could be possible to integrate into a global building science-of-heat software programme (CLIM2000). The design principle is the division of the air volume of the room into areas for wich mass and energy balances are computed. Room areas where air f lows at very low velocities (standard areas) and dynamic areas such as thermal plumes or jets are processed separately. An exemple of computation made using the first version of the model ie prior to the integration of plume and jet, evidences, the possibility of using simplified modelling to represent interior air movement.