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Full text of "The Flow Of Gases In Furnaces"

DESIGN  OF OPEN-HEARTH FURNACES

247

TABLE 10

REVERSING VALVES AND CHIMNEYS IN PRACTICE


	
	Valve
	Area
	
	(
	Chimney.
	

Nominal Furnace Capacity,
	
	
	SqFtp
	er Ton
	
	Area oi
	SqFt

Tons
	Gas, SqFt
	Air,
 SqFt
	Gas
	Air
	Height,
 Ft
	Bore,
 SqFt
	Per Ton

10-1 15
 20-A
	3.12 3.12 3 90
	4.87 3.12 3 90
	0.312 0.208 0 195
	0.487 0.208 0.195
	100 90 100
	9.63 12.56
	0.963 0.837

20-3
	3 07
	4 00
	0 154
	0 200
	
	
	

20-D
	3 90
	5 90
	0 195
	0 295
	
	
	

20-4
	
	
	
	
	
	5 85
	0.293

25-4 25-3 30-5-4
 35-2
	4.90 5.65 4.90
 5 90
	4.90 6.90 4.90
 5 90
	0.196 0.226 0.163
 0 169
	0.196 0.276 0.163
 0 169
	125 125 125
	12.56 19.64 14.20
	0.502 0.786 0.473

35-A 35-1 35-D
	4.90 4.90 4.90
	5.90 4.90 7.10
	0.169 0.140 0.140
	0.169 0,140 0.203
	114 130
	17.00 15.90
	0.487 0.474

40-7
	
	
	
	
	
	9.00
	0.225

40-4
	
	
	
	
	140
	19.64
	0.491

50-4 50-10
	7.06 7.06
	7.06 15.00
	0.141 0.141
	0.141 0.300
	150
	23.70 21.50
	0.474 0.430

50-11 50-8 50-13-15 50-16 50-X
	5.94 9.60 9.60 9.60 5 22
	9.18 12.50 9.60 12.50
 7 75
	0.119 0.192 0.192 0.192 0 104
	0.184 0.250 0.192 0.250 0 155
	150 150 150 160
	26.27 28.25 25.80 20.00
	0.525 0.565 0.516 0.400

50~4a
	8 13
	8 13
	0 163
	0 163
	
	
	

50-19 50- 5
	9.60
 7 00
	9.60 9 52
	0.192 0.140
	0.192 0.190
	150
	20.00
	0.400

50-D
	5 90
	8 70
	0 118
	0 174
	
	
	

60-13 60-3-5
	7.06 7.06
	12.58
 8.72
	0.118 0.118
	0.210 0.145
	180 153
	33.18
 28.27
	0.553 0.471