Testing Procedures

Aerodynamic measurements (forces, moments, bending etc.); drag measurements using a six-component balance

Snow accumulation measurements for determining filter loading of air intake filter

Use of fluorescent tracers for optimising driver’s cab aerodynamics

Thermal comfort measurements with passenger simulation by temperature, flow and humidity measurements in accordance with relevant standards EN 13129, EN 14750, EN 14813, UIC 553, VDV 181, VDV 236 using a comfort measurement device

Flow visualisation by means of smoke

by means of PIV (Particle Image Velocimetry)

Thermography for detecting irregularities and thermal bridges

Measurement of fresh air volume using pressure compensated flow rate measurement section or Accubalance air capture hood

using tracer gas method under airflow conditions

Air quality, CO₂ measurement (air flow measurement with tracergas)

Functional testing of refrigeration cycle (pressure, temperature, humidity measurements)

Measurement of energy consumption

Functional tests of different components in accordance with CEN/TR 16251 ("Railway application - Environmental conditions - Design and test of rolling stock under severe conditions")

Alternating climate tests (tunnel passages)