The National Engineer, Հատոր 25National Association of Power Engineers, 1921 Vols. 34- contain official N.A.P.E. directory. |
From inside the book
Արդյունքներ 100–ի 1-ից 5-ը:
Էջ 17
... Surface Per Hour 10 20 25 30 40 Per Cent Efficiency 0.55 070 0.71 0.700 66 065 076 077 0.76 0.73 0.63 074 076 0.75 070 067 078 079 078 0.74 Joseph T. Foster gives some inter- esting data in this connection in Power , April 23 , 1918 ...
... Surface Per Hour 10 20 25 30 40 Per Cent Efficiency 0.55 070 0.71 0.700 66 065 076 077 0.76 0.73 0.63 074 076 0.75 070 067 078 079 078 0.74 Joseph T. Foster gives some inter- esting data in this connection in Power , April 23 , 1918 ...
Էջ 18
... surface has been pretty definitely fixed at 10 square feet per rated horsepower for power work , while more recent practice shows that a much greater capacity may be developed , at a higher effi- ciency , for this amount of surface in a ...
... surface has been pretty definitely fixed at 10 square feet per rated horsepower for power work , while more recent practice shows that a much greater capacity may be developed , at a higher effi- ciency , for this amount of surface in a ...
Էջ 20
... surface , and the range of temperature difference . To develop the above capacities through convec- tion , it would be necessary to obtain transfer rates as follows : Direct fired Waste heat RX5000X460-170X33,477 . R = 2.47 . RX ...
... surface , and the range of temperature difference . To develop the above capacities through convec- tion , it would be necessary to obtain transfer rates as follows : Direct fired Waste heat RX5000X460-170X33,477 . R = 2.47 . RX ...
Էջ 21
... surface of a water tube boiler with horizon- tally inclined tubes arranged to give the gases four passes over the tubes . If the boiler were , say , 18 tubes high , a gas particle would strike the tubes 4X18 , or 72 times . Again , take ...
... surface of a water tube boiler with horizon- tally inclined tubes arranged to give the gases four passes over the tubes . If the boiler were , say , 18 tubes high , a gas particle would strike the tubes 4X18 , or 72 times . Again , take ...
Էջ 30
... surface , which is ex- clusive of superheater heating sur- face , or surface of future economizer . Inasmuch as this heating surface is substantially all in the tubes , it re- quired for each boiler nearly six miles of 314 - in . tubing ...
... surface , which is ex- clusive of superheater heating sur- face , or surface of future economizer . Inasmuch as this heating surface is substantially all in the tubes , it re- quired for each boiler nearly six miles of 314 - in . tubing ...
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Common terms and phrases
ammonia amount armature Association Auxiliary boiler horsepower boiler room burners burning capacity carbon cent Chicago coal coils combustion committee commutator compressor condenser connected convention Corliss Corliss valve cost cylinder Deputy direct current economical efficiency electric engi equipment Evansville exhaust fahr feed water fire fuel oil furnace gases gauge gineer heat heater horsepower hour indicator diagrams installed lecture load machine mechanical meeting ment meter motor National President neer operation pipe piston pounds power plant power plant engineer practically pres pressure pump rheostat Royal H Secretary shaft shown in Fig speed stack station steam steam engine steam trap steam turbine stoker stroke suction superheat supply surface talk tank temperature things tion trap trouble tubes turbine ture units vacuum valve voltage waste York City
Սիրված հատվածներ
Էջ 200 - One vessel of water rarefied by fire driveth up forty of cold water ; and a man that tends the work is but to turn two cocks, that, one vessel of water being consumed, another begins to force and refill with cold water, and so successively, the fire being tended and kept constant, which the selfsame person may likewise abundantly perform in the interim, between the necessity of turning the said cocks.
Էջ 327 - In testimony whereof I have caused these letters to be made patent, and the seal of The United States to be hereunto affixed.
Էջ 247 - Managers none. 2. That the owners are: (Give names and addresses of individual owners, or, if a corporation, give its name and the names and addresses of stockholders owning or holding 1 per cent or more of the total amount of stock.) The National Historical Society.
Էջ 247 - DRAMA, and that the following is, to the best of his knowledge and belief, a true statement of the ownership, management (and if a daily paper, the circulation), etc., of the aforesaid publication for the date shown in the above caption, required by the Act...
Էջ 100 - Twas a dangerous cliff, as they freely confessed, Though to walk near its crest was so pleasant. But over its terrible edge there had slipped A duke and full many a peasant. So the people said something would have to be done, But their projects did not at all tally, Some said, 'Put a fence 'round the edge of the cliff'; Some, 'An ambulance down in the valley.
Էջ 146 - Talent is something, but ta st is everything. Talent is serious, (sober, grave, and respectable: tact is all that, and more too. It is not a sixth sense, but it is the life of all the five. It is the open eye, the quick ear, the judging taste, the keen smell, and the lively touch; it is the interpreter of all riddles, the surmounter of all difficulties, the remover of all obstacles.
Էջ 235 - ... ideas. And although kingdoms and provinces may be wrested from the hands that hold them, in the same manner they were obtained; although ordinary and vulgar power may, in human affairs, be lost as it has been won; yet it is the glorious prerogative of the empire of knowledge, that what it gains it never loses.
Էջ 200 - ... which is but at such a distance. But this way hath no bounder, if the vessels be strong enough ; for I have taken a piece of a whole cannon, whereof the end was burst, and filled it...
Էջ 192 - There is so much good in the worst of us and so much bad in the best of us that it hardly behooves any of us to talk about the rest of us.
Էջ 458 - And no horse or ass be at his side. Under water men shall walk; Shall ride, shall sleep, shall talk. In the air men shall be seen, In white, in black, in green.