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Table 1 – Data on various types of fly ashes and limestone particles (Biermann and Vortmeyer)

No.

Origin of fly ash

ρst

kg/m3

A

m2/kg

d P

10−6 m

Q̄ abs A

m2/kg

Q̄ abs

–

k

m−1/3

Coal

Firing

1

Ruhr-Westerholt

Slag-tap

2110

113.0

6.3

40.6

0.360

19.5

2

Ruhr + US

Slag-tap

2220

74.8

9.0

30.5

0.408

19.6

3

Lower Rhine/Lohberg

Slag-tap

2130

79.0

8.9

17.5

0.221

10.7

4

Lower Rhine/Lohberg

Slag-tap

2290

87.0

7.5

17.6

0.202

10.3

5

Ruhr blend

Grate

2200

56.0

12.2

14.4

0.257

11.2

6

Saar

Dry bottom

2230

111.7

6.0

15.8

0.142

7.8

7

Ruhr-Gneisenau

Dry bottom

2270

42.8

15.4

13.3

0.310

12.5

8

Upper Palatinate Lignite

Dry bottom

2360

99.5

6.7

24.5

0.246

13.1

9

Saar

Cyclone

2050

47.0

15.6

14.3

0.305

12.2

10

Ruhr-Marl

Cyclone

2330

70.0

9.2

16.0

0.229

10.9

11

Saar

Dry bottom

2370

55.2

11.5

17.4

0.315

14.0

12

Ruhr blend

Cyclone

2550

73.1

8.1

18.0

0.246

12.3

13

Ruhr-Gneisenau

Cyclone

2250

120.0

5.6

22.9

0.191

10.8

14

Ruhr blend

Dry bottom

1930

82.0

9.5

21.3

0.260

12.3

15

Lignite Helmstedt

Dry bottom

2580

33.6

17.3

9.94

0.295

11.4

16

West Virginia

Dry bottom

1980

59.3

12.8

23.5

0.396

16.9

17

Ruhr-Prosper + Brassert

Cyclone

2360

69.0

9.2

8.9

0.128

6.15

18

Ruhr-Marl

Cyclone

2100

67.3

10.6

21.4

0.318

14.5

19

Hungarian Lignite I

Dry bottom

1640

42.3

21.6

16.6

0.392

14.1

20

Hungarian Lignite II

Dry bottom

1660

30.5

29.6

9.3

0.305

9.86

21

Limestone

 

2700

38.7

14.4

5.84

0.150

6.17

© Springer Verlag Berlin Heidelberg 2013