Year: 2018 Volume: 1 Issue: 2 Page: 108-113
CHARACTERIZING THE PERFORMANCE OF THE MASS FLOW CONDITIONER IN AUTOMOTIVE APPLICATION
İ. HAKKI SAVCI
An experimental methodologies were developed in order to characterize performance of the mass air flow meter in automotive application. Mass Air flow meter is a key sensor that is used to determine fuel air flow ratio. These sensors were developed on the basis of the thermal hot wire technology.
Air flow should be uniform and smooth downstream of the sensor. The turbulent flow cause the noise for the signal of the sensor due to bends flow which become turbulent flow such as Reynolds Number between 150.000 and 250.000. These turbulent flow cause unstable mass flow measurement.
To smooth the turbulent flow, the conditioners were exposed to the flow disturbed by bends. The experiments were performed with air induction system of the heavy duty trucks. Signal and pressure drop measurements provide data to understand the flow uniformity effect of the conditioner on the MAF sensor. The results of the work are utilized to develop a robust methodology for the conditioner characteristics. New Design Conditioner performance was assessed by the new methodology.
Anahtar Kelimeler (Keywords): MAF, Signal, Noise, Reynolds