Ventilation system with indirect adiabatic cooling and high efficiency filtering in an existing school
conference paper
We have developed a ventilation system to tackle indoor climate problems in existing schools. Core of the system is an balanced ventilation system with heat recovery. The heat exchanger is also used for indirect adiabatic cooling. For filtering a high efficiency and low pressure drop electrostatic filtration system has been developed. The components have first been tested in the TNO laboratory. After that a pilot has been started on the Montessori Lyceum in Zeist. The main results of the monitoring during 2019/2020 are a heat recovery efficiency between 60 and 75%. With regard to the indoor climate class A of the “PvE Frisse scholen” has been achieved for summer and winter temperature and for CO2 concentration. With regard to filtration depending on the flowrate the specifications of an E10 - E11 filter have been obtained. This results in a 70-96% lower PM2.5 concentration compared to a reference classroom. (C) 2022 17th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2022. All rights reserved.
Topics
TNO Identifier
986289
Publisher
International Society of Indoor Air Quality and Climate
Source title
17th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2022
Pages
1-8
Files
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