315

89

19-82

5-72

6

>,

"

338

88

22-56

6-21

7

»

490

84

16-0

3-32

8

„

»

493

63

15-63

3-60

9

^

[400]

78

17-23

4-95

10

5)

Donkin     &

[50]

50

10-2

2-20

Kennedy

11

"

»

[50]

57

18-5

4-09

12

H                               •

M



79

16-0

3-79

13

„

M

[164]

77-8

16-8

4-02

14

Babcock.
Longridge.
[130]

98

38-0

3-54

15

i>

JT

[80]

61

24-7

2-34

16

»

Percy  Still

214

150

14-4

3-17

17

Tubular.
Leavitt

252

99

7-35

2-12

18

290

99

8-62

2-44

19

»>

Carpenter.
574

122

1-39

20

Water  Tube  (Thorny-

Kennedy.
89

182

7-74

1-24

croft)

21

»!                •

f>

282

171

18-60

3-20

22

))               »                  •                  •

M

449

149

29-8

4-70

23

»               •                  •                  •

f

775

181

66-8

8-50

24

Marine.
Admiralty

[200]

—.
17-27

5-94

Report

25

>»

?)

[300]



28-51

8-88

26

Portable       Agricul-

R.A.S.E.
[25]

—

15-7

1-70

tural

Report

27

"

"

[35]

20-7

3-80

JS/^^Ti^

1

28

Meteor.
Kennedy.
1,994

145

19-25

4-49

29

Fusiyama

?)

371

57

18-98

3-48

30

Colchester        .         .  !

980

81

26-10

7-39

31

Tartar.
»

1,087  j

144

11-93

4-13

32

lona

645

165

22-4

2-73

33

Ville  de  Douvres

"

2,977

106

31-3

9-02

Figures  in  square  brackets  are  approximate


BOILER   EFFICIENCY
OF   VARIOUS   TYPES   OF   BOILERS


21


Coal  used

Heating
value  of  coal
per  pound  in
Th.  U.
Water  eva
from  and
per  pound
as  us

By  boiler
only

poratcd
at  212°,
of  coal

ed

By  feed
heater

Equivalent
evapora-
tion by
boiler  only
per  pound
of  carbon
value

Remarks

Ibs.
Ibs.
Ibs.
—

—

10-78

—

11-25

—

Welsh  Steam.
14,500

11-87



11-87

_

Seaborne      Rough

—

8-95

1-64

—

—

Small

—



11-04.
