Measurement.

TLK-Thermo GmbH offers measurement services in co-operation with the Technische Universität Braunschweig, Institut für Thermodynamik. In existing test facilities, various natural and synthetic refrigerants e.g. R-744, R-134a and newly-developed mixtures, can be used.

Calorimetric test rig for air conditioning and heat pump systems and their components:

  • Steady state and transient measurements with ambient conditions in the range from -20°C to 50°C and controlled humidity.
  • Measurement of a/c, refrigeration and heat pump systems with up to 25 kW cooling capacity.
  • Energy analysis using calorimetric evaporator balances, refrigerant balances, air balances and compressor torque.

Test rigs for:

  • R-134a TXV and R-744 valves or ejectors for steady state and transient measurements.
  • R-744 accumulators including a glass accumulator for steady state and transient measurements of refrigerant mass and outlet quality.
  • R-744 compressors with a large range of speed and refrigerant flow rates for measurement of efficiencies and indicator diagrams.
  • Detailed analysis of R-134a condensers including online analysis of mass and non uniform flow distribution.

Further measurement services:

  • Analysis of high efficient heat transfer fluids (e.g. nano fluids).
  • Thermal imaging with 14 bit temperature resolution and high accuracy calibration.
  • Air flow visualization with Particle Image Velocimetry (PIV) and 2-D Laser Doppler Anemometry.