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DESIGN OF HOT-BLAST STOVES

315

TABLE 4r-Continued


	TI    ,
	Air Suppb bustion
	t for Com-of Gas


	Blast
	40 Per Cent Excess
	80 Per Cent
 Excess

The total average temperature change in brickwork of checker will be on above basis ............................
	112.3
	160.7
	182.2

The difference between the heat in the blast of the gases will be

16,078,000-11,232,000 =4,846,000 = 30.4% loss
18,232,000-11,232,000 =7,000,000 = 38.8% loss

This covers merely the interchange loss in stove checker.    If the total heat
released by the gases is considered, down to 0, the following will govern:

Calories released by gases:  Per
(2.26X44.80 -f-100) X1950= .

22$
Per cycle: 1974X10,080 =

2248X 10,080=.......................       22,485,000

Der second )= .....
	
	1974


	
	


	
	19,520 000


	
	

2248

19,520,000-11,232,000
22,485,000 = 11,232,000

= 8,288,000 = 42.46% loss
= 11,253,000 = 50.04% loss