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Full text of "The Flow Of Gases In Furnaces"

HEAT CAPACITY AND  CALORIFIC  INTENSITY CURVES    359

80 per cent air supply.    Assumed that CH4 dissociates, that 90 per cent
will be burned.    02 available = 32.85X0.8 =26.28.

80% Air Supply
	Calories
	Products of Combustion
					
		02
	H2
	CO
	C02
	H2O
	N2

H2   16.60X0.9 = 14.94X58.2 = CH3 5.50     Dissociates H2   11.0 X0.9= 9.90X58.2 = C       5.50                        X97.6 = 26.28-17.92=8.36
 CO 27.10             16.72X68.2 = C02  3.90 N2   46.30 H20 0.60
 F
	870
 576 537
 1141
	7.47
 4.95 5.50
	1.66 1.10
	
	
	14.94 9.90
	29.88
 19.80 22.00
 33.44 46.30

				
	
		
				
	5.50
		
			
	10.38
	16.72 3.90
	
	
		17.92 8.36
					
	
	
	
	
			
	
	
	
	
	
	0.60
	
	
	
	
	
	
		
	3124
	26.28
	2.76
	10.38
	26.12
	25.34
	151.42

60 per cent air supply.    Assumed that CH3 dissociates, 80 per cent of H2
will be burned.    O2 available = 32.85X0.6 = 19.71.

60% Air Supply
	Calories
	Products of Combustion
					
		02
	H2
	CO
	CO2
	H2O
	N2

H2   16.60X0.8 = 13.28X58.2 = CH4 5 . 50   Dissociates H2   11.00X0.8= 8.80X58.2 = C       5.50                        X97.6 = CO 27.10 19.71-16.54 = 3.17 6.34X68.20 =
 A
	773
 512 537
	6.64
 4.40 5.50
	3.32 2.20
	
	
	13.28 8.80
	26.56
 17.60 22.00
 12.68 46.30

				
	
		
				
	5 50
		
			
	20.76
	6.34 3.90
	0.60
	
	
	16.54 3.17
					
	432
						
	2254
	19.71
	5.52
	20.76
	15.74
	22.68
	125.14

100 per cent air supply, products of combustion: N2 = 177.70
80 per cent air, products of combustion:

N2-fCO-f-H2 = 151. 42+10. 38+2.76 = 164. 56.
60 per cent air, products of combustion :

2 = 125.14+20.76-h5.52 = 151.42.

The assumption is made that air = l volume O2 and 4 volumes of N2;
that 5 volumes of air are required to supply 1 volume O2. This allows for
moisture in fuel and air supply.