The
facts observed were as follows:
Steam pressure 53 lb................................... = 300.6 deg. F.
lb.
Fuel--Water in coke and wood........................... 26.08
Ash.............................................. 10.53
Hydrogen, oxygen, nitrogen, and sulphur.......... 7.18
------
Total non-combustible..................... 43.79
Carbon, being useful combustible................. 194.46
------
Total fuel................................ 238.25
Air per pound of carbon................................ 17-1/8 lb.
Time of experiment..................................... 4 h. 12 min.
Water evaporated from 60 deg. into steam at 53 lb. pressure 1,620 lb.
Heat lost by radiation and convection.................. 70,430 units.
Mean temperature of chimney............................ 700 deg. F.
" " " air................................ 70 deg. F.
No combustible gas was found in the chimney.
I will apply Carnot's doctrine to this case.
Potential energy of the fuel with respect to absolute zero:
Units.
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