TESTS PENNSYLVANIA. 
CHEMICAL ANALYSES. 
179 
Mine samples. 
Car 
sample. 
2014 
2. 80 
3.49 
16.12 
74. 68 
5.71 
.95 
2015 
2.20 
3.09 
16. 66 
74.79 
5.46 
1.18 
2152 
2 90 
3 51 
16 82 
73. 04 
J Ash 
6.63 
([Sulphur 
.94 
4. 56 
80.70 
1.26 
5.91 
lorific value determined: 
8,064 
14,515 
7,933 
14/279 
STEAMING TESTS. 
Test 23(5, Pennsylvania No. 8. 
size as shipped, run of mine. Size as used, over 
nch, 6.5 per cent; h inch to 1 inch, 13.6 per cent; 
ich to £ inch, 22. 4 per cent; under! inch, 57.5 per 
it. Duration of test, 9.88 hours. Kind of grate, 
ping. 
Test 237, Pennsylvania No. 8. 
ize as shipped, run of mine. Size as used, over 
ich, 5.8 per cent; h inch to 1 inch. 12.3 per cent; 
ch to ^ inch, 19.5 per cent; under \ inch, 62.4 per 
t. Duration of test, 10 hours. Kind of grate, 
king. 
Test 238, Pennsylvania No. 8. 
as shipped, run of mine. Size as used, over 
ich, 5.4 per cent; I inch to 1 inch, 9.1 per cent; 
\ inch to J inch, 14.9 per cent; under \ inch, 70.6 per 
cent. Duration of test, 10.02 hours. Kind of 
grate, rocking. 
Test 230, Pennsylvania No. 8. 
Size as shipped, run of mine Size as used, over 
1 inch, 4.4 per cent; \ inch to 1 inch, 8.8 per cent; 
\ inch to \ inch, 16.2 percent; under \ inch, 70.6 per 
cent. Duration of test, 9.92 hours. Kind of 
grate, rocking. 
Test 242, Pennsylvania No. 8. 
Size as shipped, run of mine. Size as used, over 
1 inch, 2.0 per cent; \ inch to 1 inch, 7.0 per cent; 
\ inch to \ inch, 14.5 per cent; under \ inch. 76.5 per 
cent. Dried coal. Duration of test, 7.88 hours. 
Kind of grate, plain. 
MISCELLANEOUS ITEMS. 
Bating value of coal 15. T. U. per pound dry coal. 
Pice of draft: 
■ [Under stack damper inch water. 
»|Above fire , do.. 
Fnace temperature °F. 
0, coal used per square foot of grate surface per 
|ur pounds. 
Efivalent water evaporated per square foot of 
ater-heating surface per hour pounds. 
P<tentage of rated horsepower of boiler developed 
Wter apparently evaporated per pound of coal as 
;,ed pounds. 
WFer evaporated from and at 212° F.: 
Per pound of coal as fired do... 
Per pound of dry coal do. . . 
uPer pound of combustible do... 
Ef iency of boiler, including grate per cent. 
Test 236. Test 237. Test 238. Test 239. Test 242. 
0.43 
.15 
2,317 
15.74 
2.93 
82.0 
8.51 
10.12 
10. 37 
11.20 
67.27 
0.45 
.16 
2,266 
16. 23 
2.96 
83.0 
8.27 
9.85 
10.17 
11.02 
66.06 
14,828 
0.50 
.17 
2,212 
15. 69 
2.93 
82.1 
10.05 
10.42 
11.29 
67.86 
14,690 
0.63 
.19 
17. 64 
9.52 
9.75 
10.71 
64.10 
0.47 
.16 
2,059 
14.33 
2.92 
81.9 
8.52 
10.17 
10.22 
11.15 
67.19 
