Portion of 6100 Horse-power Installation of Babcock & Wilcox Boilers Equipped with Babcock & Wilcox Chain Grate Stokers at the Campbell Street Plant of the Louisville Railway Co., Louisville, Ky. This Company Operates a Total of 14,000 Horse Power of Babcock & Wilcox Boilers

[Pg 125]

[TABLE 24]
PROPERTIES OF SATURATED STEAM REPRODUCED BY PERMISSION FROM
MARKS AND DAVIS “STEAM TABLES AND DIAGRAMS”
(Copyright, 1909, by Longmans, Green & Co.)
Degrees of Superheat
Pressure
Pounds
Absolute 		Saturated
Steam 		50100150200250300
5 t
v
h 		162.3
73.3
1130.5 		212.3
79.7
1153.5 		262.3
85.7
1176.4 		312.3
91.8
1199.5 		362.3
97.8
1222.5 		412.3
103.8
1245.6 		462.3
109.8
1268.7
10 t
v
h 		193.2
38.4
1143.1 		243.2
41.5
1166.3 		293.2
44.6
1189.5 		343.2
47.7
1212.7 		393.2
50.7
1236.0 		443.2
53.7
1259.3 		493.2
56.7
1282.5
15 t
v
h 		213.0
26.27
1150.7 		263.0
28.40
1174.2 		313.0
30.46
1197.6 		363.0
32.50
1221.0 		413.0
34.53
1244.4 		463.0
36.56
1267.7 		513.0
38.58
1291.1
20 t
v
h 		228.0
20.08
1156.2 		278.0
21.69
1179.9 		328.0
23.25
1203.5 		378.0
24.80
1227.1 		428.0
26.33
1250.6 		478.0
27.85
1274.1 		528.0
29.37
1297.6
25 t
v
h 		240.1
16.30
1160.4 		290.1
17.60
1184.4 		340.1
18.86
1208.2 		390.1
20.10
1231.9 		440.1
21.32
1255.6 		490.1
22.55
1279.2 		540.1
23.77
1302.8
30 t
v
h 		250.4
13.74
1163.9 		300.4
14.83
1188.1 		350.4
15.89
1212.1 		400.4
16.93
1236.0 		450.4
17.97
1259.7 		500.4
18.99
1283.4 		550.4
20.00
1307.1
35 t
v
h 		259.3
11.89
1166.8 		309.3
12.85
1191.3 		359.3
13.75
1215.4 		409.3
14.65
1239.4 		459.3
15.54
1263.3 		509.3
16.42
1287.1 		559.3
17.30
1310.8
40 t
v
h 		267.3
10.49
1169.4 		317.3
11.33
1194.0 		367.3
12.13
1218.4 		417.3
12.93
1242.4 		467.3
13.70
1266.4 		517.3
14.48
1290.3 		567.3
15.25
1314.1
45 t
v
h 		274.5
9.39
1171.6 		324.5
10.14
1196.6 		374.5
10.86
1221.0 		424.5
11.57
1245.2 		474.5
12.27
1269.3 		524.5
12.96
1293.2 		574.5
13.65
1317.0
50 t
v
h 		281.0
8.51
1173.6 		331.0
9.19
1198.8 		381.0
9.84
1223.4 		431.0
10.48
1247.7 		481.0
11.11
1271.8 		531.0
11.74
1295.8 		581.0
12.36
1319.7
60 t
v
h 		287.1
7.78
1175.4 		337.1
8.40
1200.8 		387.1
9.00
1225.6 		437.1
9.59
1250.0 		487.1
10.16
1274.2 		537.1
10.73
1298.1 		587.1
11.30
1322.0
Degrees of Superheat
Pressure
Pounds
Absolute 		Saturated
Steam 		50100150200250300
60 t
v
h 		292.7
7.17
1177.0 		342.7
7.75
1202.6 		392.7
8.30
1227.6 		442.7
8.84
1252.1 		492.7
9.36
1276.4 		542.7
9.89
1300.4 		592.7
10.41
1324.3
65 t
v
h 		298.0
6.65
1178.5 		348.0
7.20
1204.4 		398.0
7.70
1229.5 		448.0
8.20
1254.0 		498.0
8.69
1278.4 		548.0
9.17
1302.4 		598.0
9.65
1326.4
70 t
v
h 		302.9
6.20
1179.8 		352.9
6.71
1205.9 		402.9
7.18
1231.2 		452.9
7.65
1255.8 		502.9
8.11
1280.2 		552.9
8.56
1304.3 		602.9
9.01
1328.3
75 t
v
h 		307.6
5.81
1181.1 		357.6
6.28
1207.5 		407.6
6.73
1232.8 		457.6
7.17
1257.5 		507.6
7.60
1282.0 		557.6
8.02
1306.1 		607.6
8.44
1330.1
80 t
v
h 		312.0
5.47
1182.3 		362.0
5.92
1208.8 		412.0
6.34
1234.3 		462.0
6.75
1259.0 		512.0
7.17
1283.6 		562.0
7.56
1307.8 		612.0
7.95
1331.9
85 t
v
h 		316.3
5.16
1183.4 		366.3
5.59
1210.2 		416.3
6.99
1235.8 		466.3
6.38
1260.6 		516.3
6.76
1285.2 		566.3
7.14
1309.4 		616.3
7.51
1333.5
90 t
v
h 		320.3
4.89
1184.4 		370.3
5.29
1211.4 		420.3
5.67
1237.2 		470.3
6.04
1262.0 		520.3
6.40
1286.6 		570.3
6.76
1310.8 		620.3 [Pg 126]
7.11
1334.9
95 t
v
h 		324.1
4.65
1185.4 		374.1
5.03
1212.6 		424.1
5.39
1238.4 		474.1
5.74
1263.4 		524.1
6.09
1288.1 		574.1
6.43
1312.3 		624.1
6.76
1336.4
100 t
v
h 		327.8
4.43
1186.3 		377.8
4.79
1213.8 		427.8
5.14
1239.7 		477.8
5.47
1264.7 		527.8
5.80
1289.4 		577.8
6.12
1313.6 		627.8
6.44
1337.8
105 t
v
h 		331.4
4.23
1187.2 		381.4
4.58
1214.9 		431.4
4.91
1240.8 		481.4
5.23
1265.9 		531.4
5.54
1290.6 		581.4
5.85
1314.9 		631.4
6.15
1339.1
110 t
v
h 		334.8
4.05
1188.0 		384.8
4.38
1215.9 		434.8
4.70
1242.0 		484.8
5.01
1267.1 		534.8
5.31
1291.9 		584.8
5.61
1316.2 		634.8
5.90
1340.4
Degrees of Superheat
Pressure
Pounds
Absolute 		Saturated
Steam 		50100150200250300
115 t
v
h 		338.1
3.88
1188.8 		388.1
4.20
1216.9 		438.1
4.51
1243.1 		488.1
4.81
1268.2 		538.1
5.09
1293.0 		588.1
5.38
1317.3 		638.1
5.66
1341.5
120 t
v
h 		341.3
3.73
1189.6 		391.3
4.04
1217.9 		441.3
4.33
1244.1 		491.3
4.62
1269.3 		541.3
4.89
1294.1 		591.3
5.17
1318.4 		641.3
5.44
1342.7
125 t
v
h 		344.4
3.58
1190.3 		394.4
3.88
1218.8 		444.4
4.17
1245.1 		494.4
4.45
1270.4 		544.4
4.71
1295.2 		594.4
4.97
1319.5 		644.4
5.23
1343.8
130 t
v
h 		347.4
3.45
1191.0 		397.4
3.74
1219.7 		447.4
4.02
1246.1 		497.4
4.28
1271.4 		547.4
4.54
1296.2 		597.4
4.80
1320.6 		647.4
5.05
1344.9
135 t
v
h 		350.3
3.33
1191.6 		400.3
3.61
1220.6 		450.3
3.88
1247.0 		500.3
4.14
1272.3 		550.3
4.38
1297.2 		600.3
4.63
1321.6 		650.3
4.87
1345.9
140 t
v
h 		353.1
3.22
1192.2 		403.1
3.49
1221.4 		453.1
3.75
1248.0 		503.1
4.00
1273.3 		553.1
4.24
1298.2 		603.1
4.48
1322.6 		653.1
4.71
1346.9
145 t
v
h 		355.8
3.12
1192.8 		405.8
3.38
1222.2 		455.8
3.63
1248.8 		505.8
3.87
1274.2 		555.8
4.10
1299.1 		605.8
4.33
1323.6 		655.8
4.56
1347.9
150 t
v
h 		358.5
3.01
1193.4 		408.5
3.27
1223.0 		458.5
3.50
1249.6 		508.5
3.75
1275.1 		558.5
3.97
1300.0 		608.5
4.19
1324.5 		658.5
4.41
1348.8
155 t
v
h 		361.0
2.92
1194.0 		411.0
3.17
1223.6 		461.0
3.41
1250.5 		511.0
3.63
1276.0 		561.0
3.85
1300.8 		611.0
4.06
1325.3 		661.0
4.28
1349.7
160 t
v
h 		363.6
2.83
1194.5 		413.6
3.07
1224.5 		463.6
3.30
1251.3 		513.6
3.53
1276.8 		563.6
3.74
1301.7 		613.6
3.95
1326.2 		663.6
4.15
1350.6
165 t
v
h 		366.0
2.75
1195.0 		416.0
2.99
1225.2 		466.0
3.21
1252.0 		516.0
3.43
1277.6 		566.0
3.64
1302.5 		616.0
3.84
1327.1 		666.0
4.04
1351.5
Degrees of Superheat
Pressure
Pounds
Absolute 		Saturated
Steam 		50100150200250300
170 t
v
h 		368.5
2.68
1195.4 		418.5
2.91
1225.9 		468.5
3.12
1252.8 		518.5
3.34
1278.4 		568.5
3.54
1303.3 		618.5
3.73
1327.9 		668.5
3.92
1352.3
175 t
v
h 		370.8
2.60
1195.9 		420.8
2.83
1226.6 		470.8
3.04
1253.6 		520.8
3.24
1279.1 		570.8
3.44
1304.1 		620.8
3.63
1328.7 		670.8 [Pg 127]
3.82
1353.2
180 t
v
h 		373.1
2.53
1196.4 		423.1
2.75
1227.2 		473.1
2.96
1254.3 		523.1
3.16
1279.9 		573.1
3.35
1304.8 		623.1
3.54
1329.5 		673.1
3.72
1353.9
185 t
v
h 		375.4
2.47
1196.8 		425.4
2.68
1227.9 		475.4
2.89
1255.0 		525.4
3.08
1280.6 		575.4
3.27
1305.6 		625.4
3.45
1330.2 		675.4
3.63
1354.7
190 t
v
h 		377.6
2.41
1197.3 		427.6
2.62
1228.6 		477.6
2.81
1255.7 		527.6
3.00
1281.3 		577.6
3.19
1306.3 		627.6
3.37
1330.9 		677.6
3.55
1355.5
195 t
v
h 		379.8
2.35
1197.7 		429.8
2.55
1229.2 		479.8
2.75
1256.4 		529.8
2.93
1282.0 		579.8
3.11
1307.0 		629.8
3.29
1331.6 		679.8
3.46
1356.2
200 t
v
h 		381.9
2.29
1198.1 		431.9
2.49
1229.8 		481.9
2.68
1257.1 		531.9
2.86
1282.6 		581.9
3.04
1307.7 		631.9
3.21
1332.4 		681.9
3.38
1357.0
205 t
v
h 		384.0
2.24
1198.5 		434.0
2.44
1230.4 		484.0
2.62
1257.7 		534.0
2.80
1283.3 		584.0
2.97
1308.3 		634.0
3.14
1333.0 		684.0
3.30
1357.7
210 t
v
h 		386.0
2.19
1198.8 		436.0
2.38
1231.0 		486.0
2.56
1258.4 		536.0
2.74
1284.0 		586.0
2.91
1309.0 		636.0
3.07
1333.7 		686.0
3.23
1358.4
215 t
v
h 		388.0
2.14
1199.2 		438.0
2.33
1231.6 		488.0
2.51
1259.0 		538.0
2.68
1284.6 		588.0
2.84
1309.7 		638.0
3.00
1334.4 		688.0
3.16
1359.1
220 t
v
h 		389.9
2.09
1199.6 		439.9
2.28
1232.2 		489.9
2.45
1259.6 		539.9
2.62
1285.2 		589.9
2.78
1310.3 		639.9
2.94
1335.1 		689.9
3.10
1359.8
Degrees of Superheat
Pressure
Pounds
Absolute 		Saturated
Steam 		50100150200250300
225 t
v
h 		391.9
2.05
1199.9 		441.9
2.23
1232.7 		491.9
2.40
1260.2 		541.9
2.57
1285.9 		591.9
2.72
1310.9 		641.9
2.88
1335.7 		691.9
3.03
1360.3
230 t
v
h 		393.8
2.00
1200.2 		443.8
2.18
1233.2 		493.8
2.35
1260.7 		543.8
2.51
1286.5 		593.8
2.67
1311.6 		643.8
2.82
1336.3 		693.8
2.97
1361.0
235 t
v
h 		395.6
1.96
1200.6 		445.6
2.14
1233.8 		495.6
2.30
1261.4 		545.6
2.46
1287.1 		595.6
2.62
1312.2 		645.6
2.77
1337.0 		695.6
2.91
1361.7
240 t
v
h 		397.4
1.92
1200.9 		447.4
2.09
1234.3 		497.4
2.26
1261.9 		547.4
2.42
1287.6 		597.4
2.57
1312.8 		647.4
2.71
1337.6 		697.4
2.85
1362.3
245 t
v
h 		399.3
1.89
1201.2 		449.3
2.05
1234.8 		499.3
2.22
1262.5 		549.3
2.37
1288.2 		599.3
2.52
1313.3 		649.3
2.66
1338.2 		699.3
2.80
1362.9
250 t
v
h 		401.0
1.85
1201.5 		451.0
2.02
1235.4 		501.0
2.17
1263.0 		551.0
2.33
1288.8 		601.0
2.47
1313.9 		651.0
2.61
1338.8 		701.0
2.75
1363.5
255 t
v
h 		402.8
1.81
1201.8 		452.8
1.98
1235.9 		502.8
2.14
1263.6 		552.8
2.28
1289.3 		602.8
2.43
1314.5 		652.8
2.56
1339.3 		702.8
2.70
1364.1
t = Temperature, degrees Fahrenheit.
v = Specific volume, in cubic feet, per pound.
h = Total heat from water at 32 degrees, B. t. u.

[Pg 128]

Fig. 15. Graphic Method of Determining Moisture Contained in Steam from Calorimeter Readings

[Pg 129]