SYSTEM FOR VENTILATING AND HEATING A BUILDING, WITH IMPROVED PERFORMANCE

摘要

The invention relates to a system (1) for ventilating and heating a building (2), comprising a vitiated air inlet (24) and a fresh air outlet (18) that are connected to the building, and a dual-air-flow exchanger allowing heat transfer between a vitiated air flow (62) and a fresh air flow (60), the vitiated air flow communicating with the vitiated air passage of the exchanger and the fresh air outlet communicating with the fresh air passage of said exchanger. According to the invention, the system comprises a thermochemical reactor (10) for thermochemical storage, with at least part of the vitiated air flow (62) passing through the reactor in order to generate an exothermal hydration reaction therein, causing the heating of the vitiated air flow that is to be at least partially guided towards the vitiated air passage (12) once it has passed through the reactor (10).