Analysis of the Performance of a Passive Downdraught Evaporative Cooling System Driven by Solar Chimneys in a Residential Building by Using an Experimentally Validated TRNSYS Model

Natural ventilation, combined with a passive cooling system, can provide significant energy savings in the refrigeration of indoor spaces. The performance these systems is highly dependent on outdoor climatic conditions. objective this study was to analyse feasibility passive, downdraught, evaporative system driven by solar chimneys different zones using an experimentally validated simulation tool. This tool ventilation model and thermal dwelling which empirical direct made plastic mesh implemented. For experimental validation model, sensors were installed calibrated laboratory. applied Spanish European cities climates. In simulation, values per volume air ranging between 0.53 Wh/m3 0.79 obtained for Alicante (hot climate moderate humidity) Madrid dry climate), respectively. locations, medium high applicability obtained, respectively, comparison Burgos (cold Bilbao humid low. evaluation reference building each location allowed establishing classification terms performance, comfort climate.