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Diesel combustion
CONSTANT VOLUME CHAMBER

                            
Table 1 calculation condition
  Exp. (1)  Cal.
 Ambient pressure MPa
Ambient temperature K

Fuels(Physical properties)

Fuel inj. pressure MPa
Fuel inj. duration ms
Fueling mg
2.7
930
C12H26:22%,
C13H28:54%
C14H30:22%
55
3.7
12
2.7
970

C13H28:100%

80
3.7
17.6 

-Chemical reaction mechanism and soot model
* Modified Chalmers diesel oil surogate mechanism
* Waseda university the phenomenological soot model

-Figures

Fig.1  Predicted heat release rate and chemical species profiles
          (Injection timing : 0.1 msec.)


Fig.2  Predicted precusors and soot mass profiles profiles



Fig.3  Predicted soot particles number density and average diameter

-Movies Movies  0 - 18 msec.
min                  med.                max


                      (max, med., min)
 equivalence ratio (0, 1.25, 2.5)
 temperature K
(500, 1450, 2400)
 OH ppm (0, 1000, 2000)
 C2H2 ppm
(0, 1000, 2000)
 NO ppm   (0, 1000, 2000)
 NO2 ppm (0, 50, 100)
 Carbon ppm (0, 500, 1000)
 A2R5ppm (0, 0.025, 0.05)

 Soot num. density 1/cm3 (0, 3.E+11, 6.E+11)
 Soot dia. cm (0, 0.01, 0.02)
 

(1) H.Kosaka T. Aizawa and T. Kamimoto, Two-dimensional imaging of igition and soot formation process in a diesel flame, IJER 6(1), 21-42,2005
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