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IO-Scan - Integral measuring optical scanning method
IO-Scan
Development of a photometric measurement method for determining the air exchange rate in indoor areas
Motivation
- Cost-effective, real-time assessment of indoor air quality in the form of air exchange rates
- Verify and optimise the effectiveness of ventilation systems in occupied areas
- Ability to evaluate aerosol reduction through the interaction of window ventilation, building ventilation system and mobile room air cleaners
Project Objective
- Self-calibrating measuring system
- Deviation from previous trace gas measurements should be within 10%.
- Real-time results can detect and evaluate the influence of changes in the ventilation system during the measurement process
- Intended measurement depth in the room: 1 m to 50 m
Solution Approach
- The introduction of mist aerosols into the room air influences the light transmittance to be measured.
- Transmittance of an air-aerosol mixture and use of measured transmittance to determine air exchange rate
- Integral real-time optical measurement over individual indoor distances
Further Projects
Software for technical building equipment
Design cooling load and energetic annual simulation (VDI 2078, VDI 6007, VDI 6020)
Hydrogen and methane testing field at the ILK
Simultaneously pressures up to 1,000 bar, temperatures down to –253°C