Current research projects

Image 3D - Air flow sensor
Image Reducing the filling quantity
Image Low temperature – test facilities
Image Electrical components in refrigeration circuits
Image IO-Scan - Integral measuring optical scanning method
Image Service offer for Leak Detection and Tightness Test
Image Modular storage system for solar cooling
Image In-situ investigation concerning the swelling behaviour of polymer materials under elevated pressures and temperatures
Image Investigation of material-dependent parameters
Image Tribological investigations of oil-refrigerant-material-systems
Image Combined building and system simulation
Image Calibration leak for the water bath leak test
Image Certifiable connection types in cryogenics
Image Thermal engines
Image Practical training, diploma, master, bachelor
Image Measurements on ceiling mounted cooling systems

You are here:   /  Home


IO-Scan - Integral measuring optical scanning method

INNO-KOM

02/2022 - 07/2024

M.Sc. Rebekka Grüttner

+49-351-4081-5314

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

[Translate to EN:] Ergebnisse / Aktueller Stand

[Translate to EN:]

[Translate to EN:]

[Translate to EN:]


Your Request

Further Projects

Image

Low Temperature Tribology

Tribological studies at cryogenic temperatures

Image

Investigation of coolants

Secondary loop refrigerants

Image

Refrigerants, lubricants and mixtures

Determination of working fluid properties

Image

Reduction of primary noise sources of fans

...using numerical and experimental methods with contra-rotating axial fan

Image

Software for technical building equipment

Design cooling load and energetic annual simulation (VDI 2078, VDI 6007, VDI 6020)