TESTS VIKGINIA. 
197 
STEAMING TESTS. 
Test 240, Virginia No. 4. 
Size as shipped, over 1| inches. Size as used, 
>ver 1 inch, 46.5 per cent; \ inch to 1 inch, 21.9 per 
sent; { inch to 1 inch, 12. 9 per cent; under £ inch, 
.8.7 per cent. Duration of test, 9.70 hours. Kind 
)f grate, plain. 
Test 248, Virginia No. 4. 
Size as shipped, over l\ inches. Size as used, 
>ver 1 inch, 46.1 per cent; \ inch to 1 inch, 20.4 per 
:ent; \ inch to \ inch, 12.5 per cent; under \ inch, 
[1.0 per cent. Duration of test, 8.02 hours. Kind 
rfgrate, plain. Limestone spread over grate at 
itart. 
Test 254, Virginia No. 4. 
Size as shipped, over U inches. Size as used, 
over 1 inch, 62.6 per cent; \ inch to 1 inch, 15.4 per 
cent; \ inch to | inch, 7.9 per cent; under \ inch, 
14.1 per cent. Duration of test, 10 hours. Kind 
of grate, plain. Limestone spread over grate at 
start. 
Test 245, 2-3 Virginia No. 4 and l-.'J Penn- 
sylvania No. 8 (dried). 
Size as shipped, ovet 1^ inches and run of mine. 
Size as used, over 1 inch, 44.8 per cent; \ inch to 1 
inch, 13.G per cent; \ inch to \ inch, 9.3 per cent; 
under \ inch, 32.3 per cent. Coals mixed. Dura- 
tion of test, 7.82 hours. Kind of grate, plain. 
MISCELLANEOUS ITEMS. 
rleating value of coal B. T. U. per pound drj coal . . 
Force of draft: 
Under stack damper inch water. . 
Above fire do 
Furnace temperatu re ° F . . 
Dry coal used per square foot of prate surface per hour 
pounds 
Equivalent water evaporated per square foot of watcr-heat- 
| ing surface per hour pounds. . 
Percentage of rated horsepower of boiler developed 
IVater apparently evaporated per pound of coal as fired, 
pounds 
ater evaporated from and at 212° F.: 
Per pound of coal as fired pounds. . 
Per pound of d ry coal do 
Per pound of combustible do. . . . 
fficiency of boiler, including grate per cenl . . 
oal as fired: 
Per indicated horsepower hour pounds. . 
Per electrical horsepower hour do 
ry coal: 
Per indicated horsepower hour do 
Per electrical horsepower hour do 
I 
Test 240. I Test 248 
0. 53 
.22 
2, 224 
15.73 
3.04 
85. 10 
9. 33 
9. 66 
10. 39 
64. 08 
3. 03 
3.74 
2.93 
3. 61 
14,677 
0.46 
.11 
2, 483 
17.14 
3.48 
97.50 
9.81 
10.18 
10. 86 
66. 98 
2.88 
3. 56 
2.78 
3.43 
Test 254. 
14,414 
0.44 
.13 
2, 582 
18.0 
3. 46 
96. 9 
9.22 
9. 62 
10. 20 
64. 45 
3.07 
3.79 
2.94 
3.63 
Test 245. 
0. 45 
.12 
2, 338 
17.14 
3. 06 
85. 7 
8. 60 
8.93 
9.81 
-.9. 57 
3.27 
4.03 
3.17 
3.91 
ANALVSKS. 
Test 240. 
Test 248. 
Test 254. 
Test 245. 
Proximate. 
usture 
3.40 
36. 01 
55. 87 
4.72 
3.62 
35.84 
56.58 
3.96 
4.13 
36. 18 
56.09 
3. 60 
2.99 
latile matter 
28.16 
xed carbon 
63.30 
,h 
5.55 
j 
i phur 
100.00 
.49 
100. 00 
.44 
100.00 
.44 
100.00 
.70 
