eighty millions at the middle of the century, and ance of boiler-power, with dryer steam, with to about one hundred and fifty millions at the higher speed of piston, and especially with con- present time. And still the good work pro- densers producing a good vacuum, these figures gresses and we… … 2) £6) 28) 10; a2 pM AS 18; 207 22) 2h Ro 2s 80 in the mind of the designing engineer is now how POUNDS OF STEAM PER H.P. PER HOUR, AND THOUSANDS OF B.T. U. far will it pay to go in the attempt to secure addi- Fig 4.—MARINE ENGINE ECONG MICS yarns tional progress in this department of economics.…
Shipbuilding -- Periodicals · Shipbuilding industry -- Periodicals
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