The Marine Steam Engine: A Treatise for the Use of Engineering Students and Officers of the Royal Navy |
From inside the book
Results 1-5 of 81
Page 27
... causes acting that produce waste of work , so that the whole work done by the machine is not usefully employed , some of it being exerted in overcoming the friction of the mechanism and some wasted in various other ways . The fraction ...
... causes acting that produce waste of work , so that the whole work done by the machine is not usefully employed , some of it being exerted in overcoming the friction of the mechanism and some wasted in various other ways . The fraction ...
Page 33
... causing work to be performed are equal . By absolute temperature is meant the temperature measured from the absolute ... causes a certain loss of heat , and unless proper precautions are taken this loss may become very con- siderable ...
... causing work to be performed are equal . By absolute temperature is meant the temperature measured from the absolute ... causes a certain loss of heat , and unless proper precautions are taken this loss may become very con- siderable ...
Page 35
... cause the temperature to be uniform throughout the mass . In order that heat may be efficiently transmitted through boiler plates and flues , each of the fluids in contact with them— viz . the water on the one side and the heated gases ...
... cause the temperature to be uniform throughout the mass . In order that heat may be efficiently transmitted through boiler plates and flues , each of the fluids in contact with them— viz . the water on the one side and the heated gases ...
Page 50
... causing a considerable waste of heat . This action causes the dis- agreeable rumbling and rattling noise that is sometimes . heard in boilers when the stoking is inefficient , especially if the fires are being forced . Combustion ...
... causing a considerable waste of heat . This action causes the dis- agreeable rumbling and rattling noise that is sometimes . heard in boilers when the stoking is inefficient , especially if the fires are being forced . Combustion ...
Page 51
... cause combustion to take place . Total heat of combustion . - The total amount of heat produced by the complete combustion of one pound of carbon is 14,500 thermal units , and this is sufficient to convert 15 pounds of water at a ...
... cause combustion to take place . Total heat of combustion . - The total amount of heat produced by the complete combustion of one pound of carbon is 14,500 thermal units , and this is sufficient to convert 15 pounds of water at a ...
Other editions - View all
Common terms and phrases
absolute pressure action air-pump angle arrangement atmosphere back pressure bilge blades brass cause centre coal cocks combustion compound engine connected crank crank-shaft curve diameter draught eccentric efficiency evaporation exhaust expansion valve Fahr feed feed-water feet fitted friction funnel furnaces gases gear gun-metal heating surface high-pressure cylinder hot-well hydrometer increased indicated horse-power indicator diagrams iron jacket Kingston valves latent heat length low-pressure cylinders machinery marine boilers marine engines metal motion necessary ordinary orifice paddle-wheel pass pipes piston plates port pounds per square pressure of steam prevent propeller pumps quantity rates of expansion reduced revolutions per minute Royal Navy safety-valves screw screw-propeller sea-water sensible heat shaft ship shown in Fig side slide slide-valve speed square inch steam pressure steam-pipes steel stokeholds stroke suction suitable superheated superheater surface condensers temperature thermal units total heat triple expansion engines tubes vertical weight
Popular passages
Page 32 - ... the quantity of heat necessary to raise the temperature of one pound of water at its maximum density, one degree Fahr., can be made to perform work equal to the raising of 772 Ibs.