Spatiotemporal surface temperature measurements resolving flame-wall interactions of lean h2-air and ch4-air flames using phosphor thermometry

HIGHLIGHTS

• What: In this work, three different homogeneous fuel-air mixtures were investigated: a ­H2-air mixture with equivalence ratio of Ф=0.56, a ­CH4-air mixture with Ф=1.0, and_(3) a H ­ 2-air mixture with Ф=0.45. Although SA/V values are not matched to that of a piston engine, this work provides fundamental measurements to demonstrate the effect of SA/V on the wall heat loss. In the experiments, if the chamber pressure was maintained, it is reasonable to anticipate that the thermodiffusive instabilities would persist and that Q ­ wall,max values could occupy . . .
  

   

  

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