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actually amount analyses average axis base of hood beginning brake horsepower British thermal units Bulletin carbon cents changes charged close coke considerable consumed correction corresponding cubic curves depth determine distance Distance from axis duration entire equal error expected experiments figure fired foot formation four fuel bed fuel consumption fuel-bed fuel-testing plant Gas analysis gas producer gas samples gas-producer Geological Survey give given green coal grouped Height above base horsepower per hour inches increase inner length Louis lower means measurements method necessary Norfolk observations obtained operations outer percentage period plant points in gas portion position possible pounds practically problems proper Purchase pyrometer reactions region represented samples taken sampling tube shown specified points sufficient surface Table take place temperature test hole thickness ture uniform United States Geological units of gas values variation varies vertical volume wall
Page 28 - Experimental work conducted in the chemical laboratory of the United States fuel-testing plant at St. Louis, Mo., January 1, 1905, to July 31, 1906, by NW Lord.
Page 28 - BULLETIN 339. The purchase of coal under government and commercial specifications on the basis of its heating value, with analyses of coal delivered under government contracts, by DT Randall. 1908.
Page 28 - BULLETIN 332. Report of the United States fuel-testing plant at St. Louis, Mo., January 1, 1906, to June 30, 1907 ; JA Holmes, in charge. 1908. 299 pp.
Page 28 - Geological Survey, Washington, DC The priced publications can be purchased from the Superintendent of Documents, Government Printing Office, Washington, DC BULLETIN 261.
Page 13 - A test should never be started when the producer has been standing idle for some time with banked fires, as the fuel bed will not be in the average condition under which it will be required to work during the test.
Page 29 - BULLETIN 373. The smokeless combustion of coal in boiler plants, by DT Randall and HW Weeks. 1909. 188 pp. BULLETIN 378. Results of purchasing coal under government specifications, by JS Burrows; Burning the small sizes of anthracite for heat and power purposes, by DT Randall.
Page 28 - Richard Moldenke, AW Belden, and GR Delamater. 1908. 76 pp. 10 cents. BULLETIN 339. The purchase of coal under government and commercial specifications on the basis of its heating value, with analyses of coal delivered under government contracts, by DT Randall.
Page 1 - BULLETIN 31. Incidental problems in gas-producer tests, by RH Fernald, CD Smith, JK Clement, and HA Grine.
Page 28 - BULLETIN 343. Binders for coal briquets, by JE Mills. 1908. 56 pp. BULLETIN 362. Mine sampling and chemical analyses of coals tested at the United States fuel-testing plant, Norfolk, Va., in 1907, by JS Burrows. 1908. 23 pp. 5 cents. BULLETIN 363. Comparative tests of run-of-mine and briquetted coal on locomotives, including torpedo-boat tests and some foreign specifications for briquetted fuel, by WFM Goss.