None
P / V 1 V h L H 1 101-83 0-068 333 0-00300 69-8 1034-6 1104-4 2 12615 0-136 173-5 0-00576 94-0 1021-0 1115-0 3 141-52 0-204 118-5 0-00845 109-4 1012-3 1121-6 4 153 01 0-272 90-5 0-01107 120-9 1005-7 1126-5 5 162-28 0-340 73-33 0-01364 130-1 1000-3 1130-5 6 170-06 0-408 61-89 001616 137-9 995-8 1133-7 7 176-85 0-476 53-56 0-01867 144-7 991-8 1136-5 8 182-86 0-544 47-27 0-02115 150-8 988-2 1139-0 9 188-27 0-612 42-36 0-02361 156-2 985 1141-1 10 193-22 0-680 38-38 0-02606 161 1 982-0 1143-1 11 197-75 0-748 35-10 0-02849 165-7 979-2 1144-9 12 201-96 0-816 32-36 0-03090 169-9 976-6 1146-5 13 205-87 0-885 30-03 0-03330 173-8 974-2 1148-0 14 209-55 0-953 28-02 0-03569 177-5 971-9 1149-4 15 213-0 1-021 26-27 0-03806 181-0 969-7 1150-7 20 228-0 1-361 20-08 0-04980 196-1 960-0 1156-2 25 240-1 1-701 16-30 00614 208-4 952-0 1160-4 30 250-3 2041 13-74 0-0728 218-8 9451 1163-9 35 259-3 2-382 11-89 00841 227-9 938-9 1166-8 40 267-3 2-7-22 10-49 00953 236 1 933-3 1169-4 45 274-5 3-062 9-39 01065 243-4 928-2 1171-6 50 281-0 3-402 8-51 0-1175 2501 923-5 1173-6 55 287-1 3-742 7-78 0-1285 256-3 919-0 1175-4 60 292-7 4-083 7-17 0-1394 262-1 914-9 1177 65 298-0 4-423 6-65 0-1503 267-5 911-0 1178-5 70 302-9 4-763 6-20 01612 272-6 907-2 1179-8 75 307-6 5103 5-81 0-1721 277-4 903-7 1181-1 80 3120 5-444 5-47 0-1829 282-0 900-3 1182-3 85 316-3 5-784 516 0-1937 286-3 897-1 1183-4 90 320-3 6-124 4-89 0-2044 290-5 893-9 1184-4 95 324-1 6-464 4-65 0-2151 294-5 890-9 1185-4 100 327-8 6-80 4-429 0-2258 298-3 888-0 1186-3 105 331-4 7-14 4-230 0-2365 302-0 885-2 1187-2 110 334-8 7-49 4-047 0-2472 305-5 882-5 1188-0 115 3381 7-83 3-880 0-2577 309 879-8 1188-8 120 341-3 817 3-7-26 0-2683 312-3 877-2 1189-'6 125 344-4 8-50 3-583 0-2791 315-5 874-7 1190-3 130 347-4 8-85 3-452 0-2897 318-6 872-3 1191-0 135 350-3 9-19 3-331 0-3002 321-7 869-9 1191-6 140 353-1 9-53 3-219 0-3107 324-6 867-6 1192-2 145 355-8 9-87 3-112 0-3213 327-4 865-4 1192-8 150 358-5 10-21 3-012 0-33-20 330-2 863-2 1193-4 155 3610 10-55 2-920 0-3425 332-9 861-0 1194-0 160 363-6 10-89 2-834 0-3529 335-6 858-8 1194-5 165 366-0 11-23 2-753 0-3633 338-2 856-8 1195-0 170 368-5 11-57 2-675 0-3738 340-7 854-7 1195-4 175 370-8 11-91 2-602 0-3843 343-2 852-7 1195-9 180 373-1 12-25 2-533 0-3948 345-6 850-8 1196-4 185 375-4 12-59 2-468 0-4052 348-0 848-8 1196-8 STEAM TABLES. Press. Lbs. Temperature. Deg. Fahr. Pressure. Atmos. Specific Volume. Cub. ft. per lb. Density. Lbs. per cub. ft. Heat of the Liquid. Latent Heat of Evaporation. Total Heat of Steam. P / V V h L H 190 377-6 12-93 2-406 0-4157 350-4 846-9 1197-3 195 379-8 13-27 2-346 0-4262 352-7 845-0 1197-7 200 381-9 13-61 2-290 0-437 354-9 843-2 1198-1 205 384 13-95 2-237 0-447 357-1 841-4 1198-5 210 386 14-29 2-187 0-457 359-2 839-6 1198-8 215 388 14-63 2138 0-468 361-4 837-9 1199-2 220 389-9 14-97 2-091 0-478 363-4 836-2 1199-6 225 391-9 15-31 2046 0-489 365-5 834-4 1199-9 230 393-8 15-65 2-004 0-499 367-5 832-8 1200-2 235 395-6 15-99 1-964 0-509 369-4 831-1 1200-6 240 397-4 16-33 1-924 0-520 371-4 829-5 1200-9 245 399-3 16-67 1-887 0-530 373-3 827-9 1201-2 250 401-1 17-01 1-850 0-541 375-2 826-3 1201-5 260 404-5 17-69 1-782 0-561 378-9 823-1 1202-1 270 407-9 18-37 1-718 0-582 382-5 8-20-1 1202-6 280 411-2 19-05 1-658 0-603 386-0 817-1 12031 290 414-4 19-73 1-602 0-624 389-4 814-2 1203-6 300 417-5 20-41 1-551 0-645 392-7 811-3 1204-1 From " Tables and Diagrams," by Lionel S. Marks and Harvey N. Davis, published by Longmans, Green, & Co. (1909). 210 MARINE STEAM TURBINES. Table 18. Values for the Calculation of the Heat of Evaporation^ 6-^., of Saturated Steam. t Y X Z 1 i Y X Z 25 0-056 6 0015 200 0-0120 1-20 000198 30 0-053 5 0014 1 205 0-0116 1-15 000189 35 0050 5 0013 210 00112 111 0-00181 40 0-048 5 0012 215 0-0108 108 0-00173 45 0045 5 0011 220 00105 1-04 000166 50 0043 4-3 00103 225 0-0101 100 0-00159 55 0041 4-1 0-0097 230 0-0098 0-97 0-00152 60 0-039 3-9 00091 235 0-0095 0-94 000146 65 0037 3-7 00085 240 0-0092 0-91 0-00139 70 0035 3-5 0-0080 245 0-0089 0-88 0-00134 75 0033 3-4 0-0075 250 0-0086 0-85 0-00128 80 0032 3-2 00070 255 0-0083 0-82 0-00123 85 0030 31 00066 260 0-0081 0-79 0-00118 90 0029 2-9 00062 265 0-orj78 0-77 0-00113 95 0-028 2-8 00059 270 0-0076 0-75 0-00109 100 00265 2-66 0-00654 275 0-0074 0-72 000105 105 00265 2-55 000524 280 00071 0-70 000101 110 0-0243 2-44 0-00494 285 00069 0-68 000097 115 0-0232 2-35 000468 290 0-0067 0-66 0-00093 120 0-0223 2-24 000442 295 0065 0-64 0-00090 125 00214 2-14 0-00418 300 00063 0-62 000086 130 00205 206 0-00397 305 0-0062 0-60 0-00083 135 00197 1-97 0-00376 310 00060 0-58 0-00080 140 00189 1-89 0-00357 315 0-0058 0-57 0-00077 146 0-0181 1-82 0-00339 320 00057 0-55 0-00074 150 0-0174 1-75 0-00321 325 0-0055 0-53 0-00072 155 0-0168 1-68 0-00306 330 0-0063 0-52 000069 160 00161 1-61 000291 335 0-0052 0-50 000067 165 0-0155 1-55 0-00277 340 00051 0-49 0-00064 170 00149 1-49 000263 345 0-0049 0-48 000062 j 175 00144 1-44 000251 350 0-0048 0-46 0-00060 180 00139 1-38 0-00239 355 0-0047 0-45 0-00058 185 00134 1-33 0'00228( 360 0-0046 0-44 0-00056 190 00129 1-29 0-00217 365 0-0044 0-43 0-00054 195 0-0124 1-24 0-00208 370 00043 0-41 0-00052 INDEX. The references are to pages. ABSOLUTE velocity of steam, 36 Acceleration of steam, work of, 47 Adiabatic curve, 18, 20 — expansion, 18 Advantages of steam turbine, 1 Angular velocity of shaft, critical, 62 Air, withdrawal of, from condenser, 166 — pump, dry, 169 — pump, turbine-driven, 199 — pump, wet, 169 Area of blade passages, 89 — ratio of propeller, 152 — tip leakage, 90 Arrangement of turbines in vessels, 170 Auxiliaries, consumption of, 12 — turbine-driven, 199 BAFFLES in condenser water-heads, 166 Battleships, arrangement of turbines in, A. E.G., 185 — arrangement of turbines in. Parsons, 178 Bearings, main, 104 — pressure on, 105 — propeller, 145 — thrust, 109 — thrust, test with. 111 " Birmingham " tests, 9 Blade angles, 48 — area, 89 — clearance, 89 — dimensions, 67 — dimensions, table of Parsons, 132 — height calculations, 89 — impulse, 58, 115, 120 — reaction, 131 — tip leakage calculations, 90 — velocity, 70 CALCULATIONS of A.E.G. turbine, 68 — of blade height, 90 — of number of stages, 73 — of Parsons turbine, 82 — of propellers, 151 — of stop time and way, 16 Casing turbine, A.E.G., 93 — turbine, Curtis, 119 — turbine. Parsons, 129 — drains, 138 — expansion by heat of, 99, 131 Cavitation effect of propeller, 152 Circulating water-pump, 169 — water-pump, turbine-driven, 203 — water, quantity, 161 Classification of steam turbines, 6 Clearance blade tips, A.E.G. turbine, 116 — blade tips. Parsons turbine, 132 — gland, intenial, 101 Coal consumption of various types of boilers, 14 — consumption, increase due to super- heating, 33 Coefficient of velocity, 37 Combination of pressure and velocity stages, — of velocities, 46 Comparison of turbine and engine driven vessels, 1 — of steam turbines and water turbines, 45 Condenser calculations, 163 Construction of A. E.G. turbine, 68, 93 — of Curtis turbine, 1 19 — of Parsons turbine, 82, 122 Consumption of steam in turbines, 29 — of steam, effect due to vacuum, 30 — of steam, effect due to superheat, 31 — of steam of auxiliaries, 12 Cooling water piping, 140 Critical velocity, 61 — number of revolutions of loaded shaft, 63,64 — pressure, 40 Cruisers, steam turbines in, 4 — arrangement of, A. E.G. turbines, 182 — arrangement of, Curtis turbines, 182 — arrangement of. Parsons turbines, 178 — tests with small, 9 Cruising turbines. Curtis turbine in vessels, 175, 182 Curve, adiabatic, 18 — isothermal, 18 — steam line, 21 — water line, 21 DEFINITION of steam turbine, 45 Degree of reaction, 45 Design of A. E.G. steam turbine, 93 — of Curtis steam turbine, 119 — of Parsons steam turbine, 122 Diagram, •*Mollier's," of steam, 24 — drop of Parsons turbine, 92 Diameter, choice of turbine, 70, 92 Diaphragms, A. E.G. turbine, 100 Dimensions of blades, A. E.G. turbine, 116 — of blades, Parsons turbine, 132 Discs, A. E.G. turbine, 107 — Curtis turbine, 119 Drains from glands, 115 — from L.P. casing, 138 Drop of heat in A. E.G. turbine, 73, 79 — of heat in Parsons turbine, 82, 92 — of pressure, 80 Drum rotor, A. E.G., 79, 107 — rotor, Parsons, 124 — end pressure on, 71, 127 "Dry" air-pumps, 169 Dryness factor, 22, 36 Dummy pistons, 124 — construction, 127 EDDY currents of steam in impulse turbine, 59 Efficiency blade, 74 — calculation of turbine, 28 — influence of wet steam on, 36 — ratio, 29 — thermodynamic, 29 Energy, kinetic, 45 Engine, reciprocating and steam turbine, 1 — reciprocating and steam turbine, attend- ance, 1 — reciprocating and steam turbine, main- tenance, 3 — reciprocating and steam turbine, manoeu- vring, 2 — reciprocating and steam turbine, opera- tion, 3 — reciprocating and steam turbine, out- put, 7 — reciprocating and steam turbine, re- pairs, 3 — reciprocating and steam turbine, space, 2 — reciprocating and steam turbine, steam consumption, 1 — reciprocating and steam turbine, vibra- tion, 2 — reciprocating and steam turbine, weight, 1,10 Entropy, 19 Entropy- temperature diagram, 20 Expanding nozzles, 40, 43 Expansion of casing due to heat, 99, 131 — of steam, adiabatic, 18 FAN, turbine-driven, ventilating, 201 Feed-pump, boiler, turbine-driven, 204 — pump boiler, measurement of water, •204 Flow of steam through blades, 58 Friction, steam, 59 — mechanical, 59 Fuel consumption, 14 GLANDS, steam, casing, 112 — steam, connections, 114 — steam, designs of A. E.G., 112 — steam, designs of Parsons, 128 — steam, internal, 100 — steam, losses, 76 Governors, 136, 193 Graphical determination of critical angular velocity of shafts, 64 Guide blades, 116 HAMBURG "tests, 8 Heat drop in a Parsons turbine, 82,92 — drop in an A. E.G. ' turbines, 93 — turbines in vessels with Parsons tur- bines, 122 Hyperbolic curve of expansion, 18 IDLY revolving turbine, 59 I. H.P. of reciprocating engine, 7 Importance of high vacuum, 30, 161 Impulse turbine, 45, 46 — turbine, ideal, 49 Indicated output, 60 Influence of vacuum on steam consump- tion, 30 — of superheat on steam consumption, 31 Initial steam pressure, 70 Inside glands of A. E.G. turbine, 100 INDEX. 213 " 1/ AISER," arrangement of turbines in **• passenger boat, 194 Kinetic energy, 45 I ABYRINTH gland, 128 ^ Latent heat, 22 Law of continuity, 37 Leakage of steam, 90 ** Leak-off" pipe, 115 Lifting gear, 140 L. P. turbine arrangement, 170 — turbine drains, 138 — turbine exhaust, 198 — turbine steam connections, 170 — turbine valves, 192 Losses, friction steam, 59 — friction mechanical, 59 — outlet, 58 — ventilation, 59 Lubrication connections, 139 — of main bearings, 105, 127 — of thrust bearings, 111, 128 — oil cooling, 140 — oil pressure, 139 MAIN bearings, 104, 127 Manoeuvring valves, A. E.G., 138 — valves, Parsons', 192 " Mauretania," 191 Material of blades, 116, 131 — of casings, 93, 119, 129 — of diaphragms, 100, 119 — of propellers, 160 — of rotor drum, 107, 124 — of shafts, 145 — of wheels, 107, 119 Melms Pfenniger, 6 Method of securing blades, A. E.G. tur- bine, 116 — of securing blades, Curtis turbine, 120 — of securing blades. Saturated steam properties of metric units, Table 16, 206, 207 Schichau, 6 Shaft, critical velocity of, 61 — horse-power, 7 — material, 145 — propeller, 147 — tail, 147 — thrust, 104 — turbine, 102, 119, 124 Slip, 162 Speed, emergency governor, 136, 193 Steam, action of, in turbine, 45 — admission pressure, 73 — bye-pass valve, 189, 191 — consumption of auxiliaries, 12 — consumption of auxiliaries, turbine, 199 — consumption of double - acting feed pumps, 205 — consumption of main turbines, 29 — critical pressure of, 40 — flow of, in A. E.G. type turbine vessels, 176 — flow of, in Parsons type turbine vessels, 170, 178, 189, 191 — gland, 112, 119. 128 — gland drain, 115, 138 — "MoUier" diagram, 24 — piping, 136 — pressure, admission, 70, 73 — l>ressure, critical, 40 — strainer, 136 — superheating of, 22 — superheating of, expenditure in fuel of, — valves, 136, 191 — velocity, 36 Stop time, 16 — way, 16 Stresses on shafts, 145 Studs, guide, 140 Superheated steam, 22 — steam, expenditure of fuel for, 34 — steam, influence on steam consumption, 31 — steam, test with A. E.G. turbine, 32 THEORETICAL blade height of Par- sons turbine, 88 Thermodynamic basis of calculation, 18 — efficiency ratio, 29 Thrust bearing, 109, 127 — propeller, 144 — shaft, 104 Thrust, test on thrust bearing. 111 Torpedo boat, arrangement of turbines in, 170 Torque, 144 Total heat of steam, 22 Turbine, A. E.G. type, calculation, 68 — A.E.G. tyjJe, design, 93 — arrangement in vessel, 170 — Curtis type, design, 1 19 — efficiency, 28 — ideal impulse, 49 — ideal reaction, 51 — impulse, 46 — fundamental formulae for work in, 47 — Parsons type, calculation, 82 — Parsons type, desig;p, 122 — reaction turbine, 45 — principle of, 45 VACUUM influence on steam consump- tion, 30 — influence on steam consumption, test on A. E.G. 3 ST) '>^^''- FOURTEEN DAY USE RETURN TO DESK FROM WHICH BORROWED LOAN DEPT This book is due on the last date stamped below on the date to which renewed. ' Renewed books are subjea to immediate recall or llurf!W^P7 x\W\ •-**' ^ tJ i^^_, Mill 4o4-ij/ijjj 1 LD 21-l00w-2,'55 <B139b22;476 General Librai7 University of California Berkeley (. 