Current research projects

Image Hybrid- Fluid for CO2-Sublimation Cycle
Image Intelligent innovative power supply for superconducting coils
Image Reduction of primary noise sources of fans
Image Refrigerants, lubricants and mixtures
Image Software modules
Image Cryostats, Non-Metallic and Metallic
Image Thermal engines
Image Computational fluid dynamics CFD
Image CFE-Test of Cooker Hoods
Image Overall System Optimization of Refrigeration Plant Systems for Energy Transition and Climate Protection
Image Verification of storage suitability of cryo tubes
Image Certification of efficient air conditioning and ventilation systems through the new "indoor air quality seal" for non-residential buildings
Image High Capacity Pulse Tube Cooler
Image Lifetime prediction of hermetic compressor systems
Image Calibration of Low Temperature Sensors
Image Thermostatic Expansion Valves

You are here:  Home /  Measurements and Tests


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 - Measurements and Tests

Image

Mass Spectrometer

Determining the composition of gas mixtures in the high or ultra-high vacuum range

Image

Tensile and compression testing

Determination of yield strength, tensile strength and elongation at break

Image

Investigation of material-dependent parameters

Investigation of the permeation behavior

Image

Breakthrough Sensor for Adsorption Filters (BelA)

Sensor system for detecting an imminent breakthrough in gas filtration