Table 4 Characteristic parameters of the size distributions measured under each set of engine operation conditions and at three sampling temperatures using two types of fuels.

From: The investigation of diesel soot emission using instrument combination of multi-wavelength photoacoustic spectroscopy and scanning mobility particle sizer

Fuel type and temperature

TNC (*106) (cm−3)

GSDN (nm)

GMD (nm)

TVC (*10–10) (cm−3)

Engine mode #1

I.a

2.91

108.5

87

54.6

45.7

4.26

   

88.1

 

60.2

 

II.a

2.61

104.4

91

51.8

47.8

3.38

   

88.7

 

61.6

 

I.b

2.17

81.4

 

38.2

 

1.41

II.b

2.15

72.1

 

35.3

 

1.20

I.c

1.05

51.5

 

24.2

 

0.982

II.c

1.02

48.3

 

24

 

0.709

Engine mode #2

I.a

1.32

165.6

 

57.3

 

3.98

II.a

1.24

160.8

 

57

 

3.52

I.b

1.09

166.8

 

55.1

 

3.15

II.b

0.98

171.9

 

55.5

 

2.98

I.c

0.98

163.4

 

54

 

2.59

II.c

0.91

169

 

55.2

 

2.66

Engine mode #3

I.a

1.29

228.8

 

67.6

 

10.4

II.a

1.23

238.6

 

66.8

 

10.7

I.b

1.13

230.9

 

68.2

 

9.65

II.b

0.94

239.5

 

68.5

 

8.28

I.c

0.89

220.3

 

68

 

6.91

II.c

0.89

228.6

 

66.1

 

6.99

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