Current research projects

Image Low Temperature Tribology
Image Panel with indirect evaporative cooling via membrane
Image IO-Scan - Integral measuring optical scanning method
Image Behavior of multiphase cryogenic fluids
Image High Capacity Pulse Tube Cooler
Image Calibration of Low Temperature Sensors
Image Micro heat exchangers in refrigeration
Image 3D - Air flow sensor
Image Measurements on ceiling mounted cooling systems
Image Industry 4.0 membrane heat and mass exchanger (i-MWÜ4.0)
Image Energy efficiency consulting - cogeneration systems
Image ZeroHeatPump
Image Software modules
Image Modular storage system for solar cooling
Image Reduction of primary noise sources of fans
Image Mass Spectrometer

You are here:  Home /  Consulting, Expert Opinions


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 - Consulting, Expert Opinions

Image

Tribological investigations of oil-refrigerant-material-systems

Modified Almen-Wieland wear testing machine

Image

Computational fluid dynamics CFD

Scientific analysis of flows

Image

Combined building and system simulation

Scientific analysis of thermodynamic processes in buildings and its systems

Image

Reducing the filling quantity

How much refrigerant must be filled?