The Flow Of Gases In Furnaces

HEAT CAPACITY AND CALORIFIC INTENSITY CURVES 361

TABLE 3

POINTS FOR HEAT CAPACITY CURVES OF PKODUCTS OF COMBUSTION
COMPUTATIONS MADE ON BASIS OF 100 VOLUMES OF GAS BURNED

Values of Heat Capacity per gram molecule from Les Sources de L'Energie
Calorifique by Damour, Carnot and Rengade, based on the work of Mallard
and Le Chatelier. Refer to Table 7.

HEAT CAPACITY OF PRODUCTS OF COMBUSTION. (Note Below)

(1)
Temperatures
(2)
(3) 400°
(4) 800°
(5) 1200°
(6) 1600°
(7) 2000°
(8) 2400°
(9) 2800°

N2+ C02 H20
51.42 15.74 22.68
427 63 84
881 143
187
1370 245 315
1,887 364
462
2,431 501 630
3,005 657 819
3,607 832 1,035
60% air

S~

574
1211
1930
2,713
3,562
4,481
5474
Curve points

N2 + C02 H2O
164.56 26.12 25.34
464 104 94
958 237 209
1489 406 351
2,050 603 516
2,641 832 703
3,265 1,091 915
3,920 1,380 1,156
80% air

s —

662
1404
2246
3 169
4 176
5 271
6 456
Curve points

N2 CO2 H20
177.70 36.50 28.20
501
140 104
1034 331 232
1608 568 391
2,213 843 574
2,852 1,162 783
3,526 1,524 1,048
4,232 1,929 1,287
100% air

S A —

751
1597
2567
3 730
4 797
6 098
7448
Curve points

33=20%
32.85
93
192
29S
410
526
652
783
120% a:r

£/!+# =

844
1789
2865
4,140
5,323
6,750
8,231
Curve points

C=40%
65.70
185
383
595
819
1,055
1,304
1,565
140% air

SA-j-C =

936
2172
3460
4,549
5,852
7,402
9,013
Curve points

£> = 80%
131.40
371
765
1189
1,637
2,109
2,607
3,130
180% air

2A+I> =
.....
1122
2362
3756
5,367
6,906
8,705
10,578
Curve points

$ = 160%
262.8C
742
1530
2378
3,274
4,218
5,214
6,160
260% air

SA-j-# =

1493
3127
4945
7,004
9,015
11,212
13,608
Curve points

-P = 240%
394.20
1113
2295
3567
4,911
6,327
7,821

340% air

SA-fF =

1864
3892
6134
8,641
11,124
13,919

Curve points

0 = 320%
525.60
1484
3060
4756
6,548
8,436
-----

420% air

SA+£ =

2235
4657
7223
10,278
13,233

Curve points

// = 400%
657 00
1853
3824
5946
8 187

500% air

2A + H-~

2609
5421
8513
11 917

Curve points

This computation has been carried out further than necessary in order to approximate
the limits in regard to combustion conditions, both with excess and deficient air supply.