Bulletin, 325-329. sayılarU.S. Government Printing Office, 1949 |
Kitabın içinden
64 sonuçtan 1-5 arası sonuçlar
Sayfa 48
... production . Curve No. 6 is practi- cally level , except at the left end , where it is high - perhaps because the coal was so fine that it caked and allowed cracks to form in the fuel bed , or because the ash contained was high. 48 A ...
... production . Curve No. 6 is practi- cally level , except at the left end , where it is high - perhaps because the coal was so fine that it caked and allowed cracks to form in the fuel bed , or because the ash contained was high. 48 A ...
Sayfa 49
... production was attained . An attempt was made to determine the effect of -inch size ( in Indiana , Illinois , and western Kentucky coals ) on efficiency 72 * , per cent of CO loss , and combustion - chamber temperature ; but the results ...
... production was attained . An attempt was made to determine the effect of -inch size ( in Indiana , Illinois , and western Kentucky coals ) on efficiency 72 * , per cent of CO loss , and combustion - chamber temperature ; but the results ...
Sayfa 121
... production , the retarding forces of friction increase as the square of the speed of circulation . The latter sug- gestions , however , are as yet only suppositions . In each of the several calculations in the preceding table the D has ...
... production , the retarding forces of friction increase as the square of the speed of circulation . The latter sug- gestions , however , are as yet only suppositions . In each of the several calculations in the preceding table the D has ...
Sayfa 167
... production on basis of volumetric per cent of CO in combustion chamber . Per cent of CO . 0 to 0.10 . 0.10 to 0.20 to 0.20 . 0.30 . 0.50 . 0.30 to 0.40 to 0.50 to 0.60 to 0.40 . 0.60 . 0.90 . 0.90 up . Number of tests .. 9 8 4 4 1 1 ...
... production on basis of volumetric per cent of CO in combustion chamber . Per cent of CO . 0 to 0.10 . 0.10 to 0.20 to 0.20 . 0.30 . 0.50 . 0.30 to 0.40 to 0.50 to 0.60 to 0.40 . 0.60 . 0.90 . 0.90 up . Number of tests .. 9 8 4 4 1 1 ...
Sayfa 177
... production of smoke may be entirely avoided by leaving the furnace doors partly open for a short time immediately after firing . The best thickness of fire ranges from 5 to 10 inches , varying with the intensity of draft of 0.5 to 0.7 ...
... production of smoke may be entirely avoided by leaving the furnace doors partly open for a short time immediately after firing . The best thickness of fire ranges from 5 to 10 inches , varying with the intensity of draft of 0.5 to 0.7 ...
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Sık kullanılan terimler ve kelime öbekleri
Alaska Arkansas auriferous average basin beach beam bed rock bench Bendeleben Mountains boiler efficiency bowlders Cape Nome carbon cent Chickaloon chloritic clay clinker coal bed coal field coastal plain Collier combustion-chamber temperature creek bed curve deposits district ditch Drill hole dry coal east efficiency 72 fault feet thick formation Fort Smith fossils furnace Geological Survey geology granite gravel greenstone Gulch Hartshorne hydrogen inches Kigluaik Kigluaik Mountains Kougarok limestone lower Matanuska Matanuska River material miles mineral mining Mountains mouth Neuropteris Niukluk River Nome group Norton Bay Norton Bay regions Number of tests Ophir Creek outcrop pay streak placer gold Port Clarence pound of combustible pounds of dry probably quartz ratio reconnaissance reported River sample sand sandstone schist Seward Peninsula shaft Shale Shale roof shows slope Spadra stream surface tion tributary U. S. Geol upper valley veins
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