Transactions, Volumes 1-2 |
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Page 154
... cost of fuel . Following Rankine we designate the first item cost of engine , and the latter cost of full steam . These costs are expressed in terms of the same unit , for instance in terms of dollars per hour . The exact manner in ...
... cost of fuel . Following Rankine we designate the first item cost of engine , and the latter cost of full steam . These costs are expressed in terms of the same unit , for instance in terms of dollars per hour . The exact manner in ...
Page 163
... engine , Cost of coal , • $ 5,500 . 19,500 . 10 years . 20 years . . $ 4.58 per ton of 2000 pounds . 9 pounds of water evaporated per pound of coal . COST OF FULL STEAM . Cost of Coal . 4.58 X 3 X 3 % X .7854 × 20 × 26 × 60 × .08657 ...
... engine , Cost of coal , • $ 5,500 . 19,500 . 10 years . 20 years . . $ 4.58 per ton of 2000 pounds . 9 pounds of water evaporated per pound of coal . COST OF FULL STEAM . Cost of Coal . 4.58 X 3 X 3 % X .7854 × 20 × 26 × 60 × .08657 ...
Page 167
... Cost of Oil and Waste . We thus obtain the " cost of engine " = 0.111 +0.35 +.074 + .027.060 = $ 0.622 per hour as compared to a cost of full steam of $ 6.796 per hour . On the same scale ( that of our diagram ) on which $ 6.796 , " cost ...
... Cost of Oil and Waste . We thus obtain the " cost of engine " = 0.111 +0.35 +.074 + .027.060 = $ 0.622 per hour as compared to a cost of full steam of $ 6.796 per hour . On the same scale ( that of our diagram ) on which $ 6.796 , " cost ...
Contents
The Field of Mechanical Engineering 3 | 3 |
The Metric System 4 | 4 |
Regenerating Metallurgic Furnaces 5 | 5 |
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adiabatic amount back pressure belt best ratio boiler cent centre of gravity centrifugal force clearance compound engine connecting-rod constant construction cost of engine cost of full counter-balance crank crank-pin cross-head pin curve cut-off cam determined diagram diameter economy efficiency ellipse Emery empty pipette equal equation experiments feet fluid formula Franklin Institute friction full steam furnace gauge give given horse-power hour iron jacket LEAVITT length machine matter maximum meeting metal method metric system mill motion obtained P₁ paper piston pitman point of cut-off pounds per square practice President pressure of steam Professor pulley pump radius ratio of expansion reciprocating represented required to empty revolutions revolutions per minute ring shaft Society specific heat speed Spindle square inch steam engine steam in cylinder steel stroke surface temperature thickness tion valve velocity vertical weight York City