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U.S. Department of Energy
Office of Scientific and Technical Information

Specific heat of coal paste and middle oil

Technical Report ·
OSTI ID:7320641
Two tables are given showing the results of experiments on Scholven coal and gasoline stalls. Table I is data taken on March 20, 1939 from coal stall 300, showing information such as temperatures and flows of paste and work gas, flue gas temperatures, heat values, and static pressures. Table II data were taken on March 22, 1939 from gasoline stall 9 and included information such as 30,000 m/sup 3//hr gas entering and 352/sup 0/ as the entering temperature of gas and oil. A presentation of the heat balancec in the individual preheater gases was not possible with the measured values. The amount of circulation gas could not be definitely measured, yet the measured temperature of the mixture of paste and gas always appeared too high. A balance of coal stall II showed 2,000 m/sup 3//hr of paste gas absorbed in the preheater, giving 232,000 k cal/hr; 27,000 m/sup 3//hr work gas given up in the preheater with a heat of 112,000 k cal/hr; 930 m/sup 3//hr of power gas; 4,650 m/sup 3//hr of air volume; 5,580 m/sup 3//hr of waste gas into the atmosphere; 200,000 k cal/hr of radiation; 694,000 k cal/hr of waste gas; 4,460,000 k cal/hr added by the power gas; and 112,000 k cal/hr added by the work gas. The specific heat for the paste with 4.25% filmoil was .506 k cal/kg/sup 0/C in stall II. Coal stall III showed .493 k cal/kg/sup 0/C and coal stall IV showed .565 k cal/kg/sup 0/C. With coal paste and oil injection in the ratio of 1:1, gasoline stall 9 gave .836 k cal/kg/sup 0/C for middle oil. For the balance for 1938 for Scholven, the specific heat of the coal paste without filmoil became .545 k cal/kg/sup 0/C.
Research Organization:
I.G. Farbenindustrie, A.G., Ludwigshafen (Germany)
OSTI ID:
7320641
Report Number(s):
TOM-237-216-219
Country of Publication:
United States
Language:
English