Current research projects

Image Micro fluidic expansion valve
Image Non- invasive flow measurements
Image Low temperature – test facilities
Image Swirl-free on the move...
Image Thermostatic Expansion Valves
Image Brine (water)-water heat pump
Image Modular storage system for solar cooling
Image Low Temperature Tribology
Image Behavior of multiphase cryogenic fluids
Image Solar Cooling
Image Software modules
Image Tensile and compression testing
Image Innovative cryogenic cooling system for the recondensation / liquefaction of technical gases up to 77 K
Image Influenced melting point of water by magnetic field
Image Investigation of coolants
Image CFE-Test of Cooker Hoods

You are here:  Home /  Testing Equipment


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 - Testing Equipment

Image

Breakthrough Sensor for Adsorption Filters (BelA)

Sensor system for detecting an imminent breakthrough in gas filtration

Image

Low temperature – test facilities

thermal cycling tests at very low temperatures

Image

All-in-one device for freeze-drying and production of biomaterial

with automated freezing and sterilisation option

Image

Corrosion inhibitor for ammonia absorption systems

An alternative to chromium(VI) compounds

Image

High temperature heat pump

Using waste heat from industrial processes