# Full text of "The Flow Of Gases In Furnaces"

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APPENDIX VII
TABLE 16

Gas on Gas
Air on
Air
Gas on Waste
Gas
Air on Waste Gas

Calories available for gas checker 2035X0.3619=     ...........

736

Calories available for air checker 2035X0 6381 =

1299

Percentages for air and gas: 736-f- 921 =

79 91

1299-f-1114 =

116 61

Correction to make sum 200 .....

1 41
2 07

Corrected values

81 32
118 68

Reducing to 100% basis .....

40 66
59 34

Calories per cubic meter of gas burned-    921X0 4066=   .

374

1114X0.5934= .......

661

Calories required by preheat .....
279
492

Volumes of gas, air supply and products of combustion: Gas at 0° 760 mm ............
5 m332

Air at 0° 760mm ............

8m3 51

Products of combustion: 12.77X0.4066= ...........

5m3 19

12.77X0.5934= ...........

7 m358

Calories per second required: 5.32X279= .................
(188 cu ft ' 1484
(300 cu ft)
(181 cuft)
(270 cuft)

5.32X492= .................

2618

5.32X374= ..............

1990

5.32X661 = ...............

3516

Calories per cycle: 15 minute = 900 seconds
1,335,COO

1,791 000

20 minute = 1200 seconds ......
1,781,000
2,356,000
2,388,000
3,164,000

25 minute = 1500 seconds ......
2,226,000
3,141,000
2 985 000
4,219,000

3,627,000

4,974,000

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