Current research projects

Image Calibration leak for the water bath leak test
Image Ionocaloric cooling
Image Brine (water)-water heat pump
Image Innovative cryogenic cooling system for the recondensation / liquefaction of technical gases up to 77 K
Image Electrical components in refrigeration circuits
Image Pulse-Tube-Refrigerator with sealed compressor
Image Industry 4.0 membrane heat and mass exchanger (i-MWÜ4.0)
Image Panel with indirect evaporative cooling via membrane
Image Tribological investigations of oil-refrigerant-material-systems
Image Swirl-free on the move...
Image Micro fluidic expansion valve
Image Certification of efficient air conditioning and ventilation systems through the new "indoor air quality seal" for non-residential buildings
Image Corrosion inhibitor for ammonia absorption systems
Image Electrochemical decontamination of electrically conducting surfaces „EDeKo II“
Image Low Temperature Tribology
Image In-Situ-Swelling Behaviour of Polymer Materials in Flammable Fluids

You are here:  Home /  Research and Development


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 - Research and Development

Image

Multifunctional electronic modules for cryogenic applications

Electronic with less wiring effort - more than 100 sensors via one feedthrough

Image

Certifiable connection types in cryogenics

Detachable and permanent connections, adhesive bond / form closure / force closure

Image

Combined building and system simulation

Scientific analysis of thermodynamic processes in buildings and its systems

Image

Heat2Power

Refining of fuel cell waste heat