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Catalytic reactor (TWC, DOC, NSC, SCR) and solid particle filter (DPF, GPF) efficiency tests
Efficiency tests of catalytic exhaust gas aftertreatment purifying systems through measurements with 2 emission measurement lines of undiluted exhaust before and after the given exhaust aftertreatment system.
Examples of exhaust sampling points:
- Engine OUT – engine exhaust manifold, untreated exhaust
- PRE cat – catalytic reactor entrance, unpurified exhaust
- POST cat – catalytic reactor exit, purified exhaust
- PRE DPF – solid particle filter entrance, unpurified or purified exhaust
- POST DPF – solid particle filter exit, purified exhaust
- TAIL PIPE – exhaust system exit, purified exhaust
Diluted or undiluted exhaust concentration measurements: CO, CO2, O2, NO, NOx, NO2, THC, CH4
Diluted or undiluted calculations: CO, CO2, O2, NO, NOx, NO2, THC, CH4
Equipment
- Exhaust analysing set – HORIBA MEXA 7400 HTRLE
- Exhaust analysing set – HORIBA MEXA 7500 DEGR
- Exhaust collection system – HORIBA CVS 7400 S
- Solid particle collection system – HORIBA DLS 7100 E
- Solid particle counter – HORIBA MEXA-2000SPCS
- Soot concentration measuring device – AVL Micro Soot Sensor 483
- Climatic chamber WEISS WK 643’/35-60/Ro, with temperature range from -35°C to +60°C
- Chassis dyno – AVL 4WD
