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12 atmos adiabatic admission advantage amount arranged boiler brake Burmeister & Wain clearance space clearance surfaces compound engine considerable construction counter counter-flow engine cover jacket crank cross section curves Cylinder diameter cylinder engine cylinder jacket cylinder walls diagram employed engine built exhaust belt exhaust ports exhaust steam exhaust valve expansion engines favourable compression flow engine flywheel governor Grate area heat units heating action Heating surface increased initial pressure inlet valve Kolomna later cut-off leakage lever lift valves load low pressure cylinder lubricating Maschinenfabrik maximum mean pressures Mechanical efficiency obtained operation ordinary piston valve portable engine roller saturated steam shown in figure shows side slide valve speed steam consumption steam passes steam pressure steam tightness steam turbine superheated steam superheater supplementary clearance temperature difference tests thermal throttling una-flow cylinder una-flow engine una-flow locomotive una-flow steam engine valve gear velocity Weight whilst winding engine
Page 20 - Stages and superheating are therefore "make shifts" used to correct the injurious results of the principal error in the ordinary form of steam engine construction which, throughout this work, is referred to as the counterflow type.
Page 17 - C the corresponding mean pressure is about 3'4 atmos., that is the mean pressure at the point of intersection of the two curves. The point of intersection of the two curves...
Page 20 - ... now these fundamental mistakes are avoided, that is to say, if the counter-flow \ is replaced by a uni-directional flow, the cooling of the...
Page 19 - It may also be seen from consideration of the character of the adiabatic expansion and compression curves, that the una-flow steam engine must give almost the same economic efficiency with superheated as with saturated steam.
Page 3 - Owing to the complete removal of all the moisture at each stroke, the well known heat losses, caused by the presence of water, in ordinary engines are avoided.
Page 141 - With a 2% clearance, cut-off at 5%, condenser pressure 0.07 atmos absolute, the most favourable compression is 90% and these conditions may be taken as normal for the unaflow engine.
Page 126 - ... the cylinder during the latter part of the expansion and the early part of compression.