Experiments have been carried out
in a constant volume chamber to investigate the effects of Chlorella
oil addition on the laminar burning velocity and Markstein length
of Chlorella oil/RP-3 kerosene blends at an initial pressure of 0.1
MPa and temperature of 450 K over a wide equivalence ratio range from
0.8 to 1.4. The result shows that at equivalence ratios of 0.9 and
1.1, with the increase of Chlorella oil addition, no cellular structure
is observed in the flame propagation images. It means that the Chlorella
oil addition has little effect on the flame stability under these
experimental conditions; however, at an equivalence ratio of 1.3,
with the increase of Chlorella oil addition from 0 to 0.5, the flame
tends to be stable. It is found that the Markstein length of Chlorella
oil/RP-3 blend decreases with the increase of the equivalence ratio.
The blend with 0.5 Chlorella oil addition has a more rapid decrease
in Markstein length compared with that of the RP-3 between the equivalence
ratio from 1.1 to 1.3. The peak laminar burning velocity of Chlorella
oil/RP-3 kerosene blend is obtained at the equivalence ratio of 1.1,
and with the increase of Chlorella oil addition from 0 to 0.5, the
laminar burning velocity increases about 20%.
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