252 



INDEX. 



Fuel, Evaporative power, 174 



Gaseous, 92 



Weight of, ill 

 Fuels, i 



, Division of, I 



Tables, 209 



GAS, COAL 



Aguitton's experiments, 95 

 Bueb-Dessau's experiments, 95 

 Heat of combustion (table), 243 

 Mahler's experiments, 96 

 Variation in, 95 

 Gas-composimeter, 150 

 Gas, gasogene ; heat theory, 97 

 Loss of calories, 98 

 Value, 97 

 Varieties, 98 

 Gas-holder, Oil, 132 

 Gas, Natural. See Natural Gas 

 Gas, Producer ; Heat theory of, 99 

 Heat of combustion (table)245,246 

 Mahler's experiments, 101 

 Gas sampler, A. S. M. E., 131 



Scheurer-Kestner's, 128 

 Gas, water. See Water Gas 

 Gaseous fuels, 92 



Heat of combustion of (tables), 245 

 Gases, Analysis, 133 

 as fuel, 92 



Calculation of calories, 67 

 Comparative value, 107 

 Heat of combustion from anal- 

 ysis, 93 

 Heat units, 164; table, 203 



" " example, 165 

 Ignition point (table), 207 

 Weight and volume (table), 200 

 Specific heat (table), 204 

 Gases, waste. See Waste Gases 



Specific heat of (table), 205 

 Gottlieb's wood tests, 86 

 Gruener's coal table, 77 



HARTLEY'S CALORIMETER, 40 

 Heat, balance in boiler trials, 193 

 Loss of, in producer gas, 104 

 of aqueous vapor, 159 

 combination, 94 

 combustible gases, 164 

 combustion, 3 



and candle power, 96 

 ; Calculated vs. det'mined, 9 

 Cause of disagreement, 10 

 Determination of, 3, 4 

 From chem. composition, 7 

 , Litharge or lead test, 10 



Heat, Methods of determining, 7 

 of carbon, 12, 54 

 carbon vapor, 173 

 coal, 66 

 coke, 68 

 colza oil, 64 

 constant pressure., 20 

 constant pressure and vol- 

 ume, 45 



fuels (tables), 209 

 gas, 67 



gases, calculation, 68, 93 

 gases, difference in, 94 

 gases, modified by con- 

 densation, 94 

 gases (table), 203, 241 et 



seq. 



hydrogen, 97 

 marsh gas, 97 

 natural gas, 106; table, 241 

 oils (table), 238 

 olefiant gas, 97 

 petroleum, 90 

 various subst. (table), 198 

 electric igniter, 70 

 hygroscopic water, 162 

 sensible of the temperature, 160 

 soot, 166 

 vaporization of water, 4; table, 



205 



water of combustion, 162 

 Specific ; gases (table), 204 

 waste gases (table), 205 

 water (table), 205 

 Heat units, Dulong's, 21 



from chemical composition, 7 

 lead reduction test, 10 

 Ratio of, to fixed carbon, 77 

 of steam-boiler tests, Cal'tion, 159 

 of steam-boiler tests Distribu- 

 tion, 167 

 Heat value, 2 



of fuels (tables), 209 

 Heating by charcoal, 84 

 coke, 82 

 gas, 92 

 lignite, 78 

 oil, 89, 90 

 peat, 80 

 wood, 84 

 Hirn's waste-gas apparatus, 145 



formula, 146 



Horse-power, Commercial, 180 

 Hydrocarbons, Unconsumed, 25 

 Hydrogen, Calories of, 4 

 in cinders, 115 

 , Oxygen necessary for, 125 



