Current research projects

Image Non- invasive flow measurements
Image Certification of efficient air conditioning and ventilation systems through the new "indoor air quality seal" for non-residential buildings
Image Low temperature – test facilities
Image Energy efficiency consulting - cogeneration systems
Image Calibration leak for the water bath leak test
Image Low Temperature Measuring Service
Image Cryostats, Non-Metallic and Metallic
Image Performance tests of condensing units
Image Testzentrum PLWP at ILK Dresden
Image In-Situ-Swelling Behaviour of Polymer Materials in Flammable Fluids
Image Solar Cooling
Image Low noise and non metallic liquid-helium cryostat
Image Helium extraction from natural gas
Image In-situ investigation concerning the swelling behaviour of polymer materials under elevated pressures and temperatures
Image Investigation of materials
Image Hydrogen and methane testing field at the ILK

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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

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Software for technical building equipment

Design cooling load and energetic annual simulation (VDI 2078, VDI 6007, VDI 6020)

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Measurements on ceiling mounted cooling systems

Comparative performance measurement

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Micro fluidic expansion valve

for increasing of the efficiency of small and compact cooling units

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Solar Cooling

Solar Cooling with Photovoltaic

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Hydrogen and methane testing field at the ILK

Simultaneously pressures up to 1,000 bar, temperatures down to –253°C