Current research projects

Image In-situ investigation concerning the swelling behaviour of polymer materials under elevated pressures and temperatures
Image Helium extraction from natural gas
Image Investigation according to DIN EN ISO 14903
Image Measurement of insulated packaging
Image Reducing the filling quantity
Image Brine (water)-water heat pump
Image Influenced melting point of water by magnetic field
Image Software for test rigs
Image Cryogenic liquid piston pumps for cold liquefied gases like LIN, LOX, LHe, LH2, LNG, LAr
Image Lifetime prediction of hermetic compressor systems
Image Non- invasive flow measurements
Image Micro fluidic expansion valve
Image Preformance measurements of heat exchangers
Image Laseroptical measurement
Image Hybrid- Fluid for CO2-Sublimation Cycle
Image IO-Scan - Integral measuring optical scanning method

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

Your Request

Further Projects

Image

Low noise and non metallic liquid-helium cryostat

Low-noise Magnetic Field Cryostat for SQUID-Applications

Image

Cryostats, Non-Metallic and Metallic

position indenpendent, highest endurance, tiltable for liquid helium and liquid nitrogen

Image

Calibration of Low Temperature Sensors

According to the comparative measurement method

Image

High Capacity Pulse Tube Cooler

for Cryogenic High-Power Applications