Current research projects

Image Modular storage system for solar cooling
Image Hydrogen and methane testing field at the ILK
Image Refrigerants, lubricants and mixtures
Image Filter Tests
Image Lifetime prediction of hermetic compressor systems
Image Range of services laboratory analyses
Image Electrical components in refrigeration circuits
Image In-Situ-Swelling Behaviour of Polymer Materials in Flammable Fluids
Image Combined building and system simulation
Image Calibration leak for the water bath leak test
Image Pulse-Tube-Refrigerator with sealed compressor
Image Industry 4.0 membrane heat and mass exchanger (i-MWÜ4.0)
Image Ionocaloric cooling
Image Micro fluidic expansion valve
Image Measurements on ceiling mounted cooling systems
Image Reduction of primary noise sources of fans

You are here:   /  Home


IO-Scan - Integral measuring optical scanning method

6718,6719,6720,6721,7482,7484

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

[Translate to EN:] Ergebnisse / Aktueller Stand

[Translate to EN:]

[Translate to EN:]

[Translate to EN:]

Your Request