3 o8 



Table 297 

 HEAT VALUES AND ANALYSES OF VARIOUS FUELS 



(a) Coals 



Coal. 



I ip-nitp / Low grade. 

 Lignite j High gfade 



Sub-bitu- / Low grade. 



minous \ High grade 

 Bitu- | Low grade. 



minous \ High grade 

 Semi-bitu-j Low grade 



minous \ High grade 



Semi-anthracite 



Anthra- I Low grade. 



cite 1 High grade 

 Oven J Low grade. 



coke \ High grade 



•£ 4> 



27. 2g 



29.62 

 36.60 

 46.06 

 43 -92 



58.83 



75-5 



78. 20 



78.82 



82.07 



84.28 



88.87 



94.66 



0.94 

 o. 29 

 0.58 

 4-94 

 0.58 

 0.99 

 o-54 

 1-74 

 o.54 

 0.60 

 1. 18 

 0.69 



37-45 

 41-31 

 52.54 

 60.08 

 60.06 

 77.98 

 80.65 

 84.62 

 80.28 

 79. 22 

 81.35 



0.50 

 0.67 

 103 

 1. OS 

 1.02 

 1.29 

 1.82 

 1.02 

 1-47 

 0.68 

 0.79 



45-57 



40.75 



34 09 



27.03 



17.88 



II. 51 



4.66 



5 09 



3-59 



4.64 



5 06 



_0 M 

 3£ 



3526 

 3994 

 5"5 

 5865 

 6088 

 7852 

 7845 

 8166 

 7612 

 6987 

 7417 

 7946 

 8006 



» 3 

 . o 



H ft 



6347 

 7189 

 9207 

 10557 

 10958 

 14134 

 14121 

 14699 

 13702 

 12577 

 13351 

 14300 

 14410 



(b) Peats and Woods (air dried) 



Franklin Co., N. Y 

 Sawyer Co., Wis. . . 

 Woods: 



Oak, dry 



Birch, dry 



Pine, dry 



Vol. 

 hydro- 

 carbon. 



67. 10 

 56.54 



Fixed 

 carbon. 



28.99 

 27.92 



Ash. 



3-9i 



15-54 



Sul- 

 phur. 



Hydro- 

 gen. 



6.02 

 6.06 

 6. 20 



Carbon. 



57-17 

 51.00 



50.16 

 48.88 

 50.31 



Nitro- 

 gen. 



1.48 

 1 .92 



o.og 

 0.10 

 0.04 



Oxygen. 



31-36 

 26.54 



43 36 

 44.67 

 43.08 



Calories 



per 

 gram. 



5726 

 4867 



4620 

 4771 

 5085 



B.T.U.'s 



per 

 pound. 



10307 

 8761 



8316 

 8588 

 9153 



(c) Liquid Fuels 



Fuel. 



Petroleum ether 



Gasoline 



Kerosene 



Fuel oils, heavy petroleum or refinery residue 



Alcohol, fuel or denatured with 7 to 9 per 



cent water and denaturing material 



Calories per gram. 



12210-12220 

 11100-11400 

 11000-11200 

 10200-10500 



6440-6470 



British thermal units 

 per pound. 



21978-21996 

 19980-20520 

 1 9800-201 60 

 18360-18900 



11592-11646 



(d) Gases 



Gas. 



Natural gas, Cal 



Natural gas, Pa 



Natural gas, France. . 

 Coal gas, high grade . 

 Coal gas, low grade . . 

 Water gas, low grade. 

 Water gas, high grade 



B.T.U 



per 



cu.ft. 



937 

 1420 

 1052 

 65 7 

 399 

 283 

 657 



* C2H6. Data from the Geological Survey, Poole's The Calorific Power of Fuels, and for natural gas from Snelling 

 (Van Nostrand's Chemical Annual). 



Smithsonian Tables 



