None
t 1 Y X Z 0-015 t Y X Z 25 0056 6 200 0-0120 1-20 0-00198 ao 0053 5 0014 205 0-0116 115 0-00189 35 0050 5 0013 210 0-0112 1-11 0-00181 40 0-048 5 0-012 215 0-0108 108 0-00173 45 0045 5 0-011 220 0-0105 1-04 0-00166 50 0043 4-3 00103 225 00101 1-00 0-00159 55 0041 41 0-0097 230 0-0098 0-97 0-00152 60 0-039 3-9 00091 235 0096 0-94 0-00146 65 0-037 3-7 0-0085 240 0-0092 0-91 0-00139 70 0035 3-5 0-0080 245 0-0089 0-88 000134 75 0-033 3-4 00075 •250 0-0086 0-85 0-00128 ' 80 0-032 3-2 0-0070 ; 255 0083 0-82 00123 ' 85 0030 31 0-0066 260 0-0081 0-79 0-00118 90 0029 2-9 0-0062 265 0-0078 0-77 0-00113 95 0-028 2-8 0-0059 270 0-0076 0-75 000109 100 0-0265 2-66 0-00564 275 0-0074 0-72 0-00105 105 0-0255 2-55 0-00524 280 00071 0-70 0-00101 110 00243 2-44 00494 285 00069 0-68 0-00097 115 0-0232 2-35 00468 290 0-0067 0-66 000093 120 0-0223 2-24 000442 295 00065 0-64 000090 125 00214 2-14 0-00418 300 0-0063 0-62 0-00086 130 0-0205 2 06 0-00397 305 0062 0-60 0-00083 135 0-0197 1-97 0-00376 310 0-0060 0-58 0-00080 140 0-0189 1-89 00357 315 0-0058 0-57 0-00077 145 00181 1-82 0-00339 320 0-0057 0-55 0-00074 150 0-0174 1-75 00321 325 0-0055 0-53 0-00072 155 0-0168 1-68 0-00306 330 00053 0-52 0-00069 160 0-0161 1-61 0-00*291 335 0-0052 0-50 0-00067 165 0-0155 1-55 0-00277 340 0-0051 0-49 0-00064 170 0-0149 1-49 00263 345 0-0049 0-48 0-00062 175 0-0144 1-44 0-00251 350 0-0048 0-46 0-00060 180 00139 1-38 0-00239 355 0-0047 0-45 0-00058 185 0-0134 1-33 0-00-228 360 0-0046 0-44 0-00056 190 0-0129 1-29 0-00217 365 0-0044 0-43 0-00054 195 00124 1-24 0-00208 370 p 1 0-0043 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 propell'er, 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, 14o — thrust, 109 — thrust, test with. 111 ** Birmingham " tests, 9 Blade angles, 48 — area, 89 — clearance, 89 — dimensions, 57 — 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 — drainsf 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, internal, 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, 57 — 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, 119 — of Parsons turbine, 82, 122 Consumption of steam in turbines, 29 — of steam, effect due to vacuum, 30 — of steam, efiect 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. Curtis turbine in vessels, 175, 182 Curve, adiabatic, 18 — isothermal, 18 — steam line, 21 — water line, 21 DEFINITION of steam turbine, 46 Degree of reaction, 45 Design of A. E.G. steam turbine, 93 — of Curtis steam turbine, 1 19 — 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, atten<1- 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, ^ Expansion of casing due to heat, 99, 131 — of steam, adial^tic, 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 Lr 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 JUI AIN bearings, 104, 127 *"* Manreuvnng 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. 