Comparative Modelling Analysis of Air Pollutants, PM2.5 and Energy Efficiency Using Three Ventilation Strategies in a High-Rise Building: A Case Study in Suzhou, China

This study investigated the ventilation efficiency and energy performance of three strategies—an all-air system (AAS), a radiant panel with displacement (DPS), decentralized (DVS). The research analyzed indoor air quality (IAQ) in high-rise building based on building’s height, handling unit (AHU) location, infiltration rate, outdoor pollution seasonal change, filter efficiency. results indicated that AAS had best terms IAQ winter; however, also highest annual demand. For same conditions, DVS consumed less but worst maintaining satisfactory IAQ. Considering consumption, it is worth developing further to improve performance. By applying double-filter lower floors building, DVS’s was dramatically improved while at time consuming than original DPS AAS. application can minimize negative effect rate which means better maintain within healthy range for more extended period. Moreover, found still substantial potential saving during season when relatively clean. Hence, highly recommended used buildings.