Colloquium: Vartan Margos (FPP)

21 januari 2019 10:00 - Locatie: Lecture Room C, Faculty of Aerospace Engineering, Kluyverweg 1, Delft.

Laminar burning velocity mesaurements of DNG with hydrogen addition

This thesis has investigated the laminar burning velocity of Dutch natural gas with hydrogen addition, both experimentally and numerically. Experimental measurements were performed with the Bunsen burner method. Two experimental methodologies were applied to obtain the laminar burning velocity. The mass conservation method was used in combination with the OH*-chemiluminescence. The second methodology used the semi-cone angle method in combination with Particle image velocimetry (PIV).  Numerical predictions were obtained with the GRI-Mech 3.0 kinetic mechanism. The measurements from both independent measurement techniques, PIV and OH*, are in good agreement with each other for all measured equivalence ratios. Therefore conclusions can be drawn that PIV is a reliable method to obtain the laminar burning velocity, since the OH* method was validated. Numerical results obtained with GRI-Mech 3.0 are in good agreement with OH*-chemiluminescence and PIV results for equivalence ratios 1.2 and lower. Large discrepancies are observed in the rich region.