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Table 1 Combustion Constants
f%oo3 -f flu
Nit. Substance
Molecu lar Lb per
Formula Weight Cu Ft
Cu FI per Lb
Sp Gr Air = 1.000
Heat of Combustion Btu per Cu Ft Btu per Lly Gross Net Gross Net (High) (Low) (High) (Low)
For 100% Total Air Mots per mol of Combustible
or Cu Fl per Cu Ft of Combustible Required lor Combusion Flue Products O4 N9 Air COa HaO Ns
For 100% Total Air Lb per Lb of Combustible Required for Combustion Flue Product! Ot St Air COt HO Nf
1 Carbon*
c not
14,09] 14,093 1.0 3.76 4.76 1.0
3.76 2.66 8.86 11.53 3.66
8.16
2 Hydrogen
2.016 0.0033 187.723 00696 321 275 61.100 _ 31,623 0.5 1.B8 2.38 .... 1.0 1.88 7.94 26.41 34.34
1.94 26.41
3 Oiyscn
o* 32.000 0.0646 11.819 1.1053
.... .
...
,,,T,, i---
n' 2D.016 0 0744 13.443 0.971 H
5 Carbon monoxide c6
Pafdllm series
CO1
28.01 0.0740 13.306 0.9672 322 322 4,347 4,347 0.5 1.88 2.38 1.0 1 44.01 0.1170 6.S4B 1.3282
1.88 0.JT I.90_ 2.47" 1.57
1.90
7 Methane
Cll 16.041 0 0424 23.363 0.5543 1013 913 23,879 21,320 2.0 7.33 9.33 1.0 2.0 7.33 3.99 13.28 17.27 2.74 2.25 11.28
* Ethane
C t/ 2U.067 0.0603 12.433 1.04B8 1792 1641 ~ 22.320" 20,432 3.5 13.IS 16.68 2.0 3.0 13.18 3.71 12.39 16.12 2.93 1.80 12.39
9 Propane
C II 44.0*#2 0.1196 8.363 1.5617 2390 2383 21.661 19,944 5.0 18.82 23.12 3.0 4.0 1t*2 3.63 12.07 15.70 2.99 1.63 12.07
ID n-llutane M Ist^uiitie 12 n-l'cniane
c.",. c.",. C.H
suit 0.3312
36.1 IK 0.1362 72.144 0.1904
6.321 2.0663 3370 3133 21,30* 19,680 6.5 24.47 30.97 4.0 3.0 24.47 3.38 11.91 15.49 3.03 1.55 11.91 6.321 2.0663 3363 3103 21.237 19.629 6.5 24.47 30.97 4.0 5.0 24.41 3.58 11.91 13.49 3.03 1.35 11.91 3.232 2.4S72 4016 3709 21,091 19,317 8.0 30.11 38.11 3.0 6.0 30.11 333 1141 15.35 3.05 1.50 n.ii
13 Iwipenldne
C H 72.144 0.1904 3.232 2.4872 4008 3716 21.032 19.478 8.0 30.11 38.11 5.0 6.0 30.11 3.35 11.81 15.33 3.05 1.30 11.81
14 NcupenUne
C It" 72.344 0.1904 3.232 2.4872 3993 3693 20,970 19,396 8.0 30.11 38.11 5.0 6.0 30.11 3.55 11.SI 13.35 3.05 1.50 11.81
13 n-Hcxane
c.h!* 66.169 0.2274 4.39* 2.9704 4762 4412 20,940 19.403 9.3 35.76 45.26 6.0 7.0 35.76 3.53 11.14 15.27 3.06 L46 11.74
Olcltii aeries
16 Ethylene
17 Propylene ID n-Bulenc
c,h. cC.*l*i .
26.031 0.0746 42.022 0.1110 36.101 0.14*0
13.412 0.9740 1614 1513 21,644 20.293 3.0 11.29 14.29 2.0 2.0 11.19 1.41 11.39 14.81 3.14 1.29 11.19 9 007 1.4304 2336 2186 21.041 19,691 4.5 16.94 21.44 3.0 3.0 16.94 1.42 11.39 4.81 3.14 1.29 11.39 6.736 1.9336 30*4 288] 20,840 19.496 6.0 22.59 28.39 4.0 44) 22.39 3.42 11.39 14.11 3.14 1.29 11.19
19 Isobutene
c.h; 36.102 0.1480 6.736 1.9336 3068 2869 20,730 19,382 6.0 22.39 28.39 4.0 4.0 22.59 3.42 11.39 14.81 3.14 1.29 11.19
20 n-Pentene AromaIk series
c. 70.121 0.1*32
5.400 2.4190 3836 3386 20,712 19,363 7.5 23.23 33.73 5.0 5.0 28.23 3.42 11.39 14.81 3.14 t.29 11.39
21 Iklirene 22 Tokiene
cC.It.
71.102 0.2060 92.132 0.2431
4.132 2.6920 3751 3601 11,210 17.480 7.3 28.23 33.73 6.0 3.0 28.23 3.07 10.22 13.30 3.38 0.69 10.22 4.113 3.1760 4484 4284 18,440 17,620 9.0 33.BB 42.SI 7.0 4.0 33.88 3.11 10.40 13.53 3.34 0.71 10.40
23 Xylene
c.l> 106.131 0.2603 3.367 3.6611 5230 4980 18,630 17,760 10.5 39.52 50.02 1.0 3.0 29.52 3.17 10.53 13.70 3.32 0.83 1033
Miscellaneous gases
24 Aieiykue
C 11 26.036 0.0697 14.344 0.9107 1499 144* 21,300 20,776 2.5 9.41 11.91 2.0 1.0 9.41 3.07 10.22 13.30 3.38 0.69 10.11
23 Naphthalene c' li 126.162 0.3364 2.933 4.420* 3*34 3634 17.298 16,708 12.0 43.17 37.17 10.0 4.0 45.17 3.00 9.97 12.96 3.43 0.36 9.97
26 Methyl alcohol cti 6ii 32.041 0.0846 11.120 1.1032 868 768 10.239 9,071 1.5 5.65 7.15 1.0 2.0 5.65 1.50 4.9* 6.43 1.37 1.13 4.91
27 Ethyl itkruhol c if OH 46.067 0.1216 8.221 1.5890 1600 1431 13,161 11.929 3.0 11.29 14.29 2.0 3.0 11.29 2X18 6.93 9.02 1.92 1.17 6.91
28 Ammonia 29 Sullur*
Nil 17.011 0.W36 21.914 0.1961 441 365 9,66* 8.001 0.75 2.82 3.57 OT. 1.3 3.32 1.41 4.69 6.10
1.59 531
* so so
s 32.06
......
3,9*3 3,9*3 1.0 3.76 4.76 trf - 3.76 LOO 3.29 4,29 2J00
129
3(3 Hydrogen sulfide II s
34.076 0.0911 10.979 1.1898 647 596 7,100 6,345 1.5 3.65 7.15 1.0 1.0 5.65 1.41 4.69 6.10 1.88 0.53 439
M M 0 1733 5.770 2 264
0 0476 21 017 0 6215
[1
i1
33 Air
2K.V 0.0766 13.063 1.0000
TM ----
--------
* Curium and sulfur are considered us gases for molal calculations only.
Note: This table is arranged from B&W work data. All gas volumes corrected to 80 F and 30 in. Hg dry.