TEST OF A 60 B.H.P. GAS-ENGINE, TYPE G 9, WITH A SUCTION-GAS PLANT OF THE GASMOTOREN FABRIK DEUTZ
(Made at Cologne, March 15, 1904, by R. Mathot.)
Diameter of Piston = 16.5". Piston Stroke = 18.9"
1. Average number of revolutions per minute 188.66 2. Corresponding effective work 65.11 B.H.P. 3. Average compression per square inch 176 lbs. 4. Average initial explosive pressure per square inch 397 lbs. 5. Average final expansion pressure 25 lbs. 6. Vacuum at suction 4.4 lbs. 7. Average pressure on piston 81 lbs. 8. Corresponding indicated horse-power 77 I.H.P.
9. Nature of fuel: Anthracite coal 0.4" to 0.8" 10. Origin: Coalpit of Zeihe, Morsbach at Aix-la-Chapelle. 11. Chemical composition of coal: Carbon 83.22% Hydrogen 3.31% Nitrogen and Oxygen 3.01% Sulphur 0.44% Ash 7.33% Water 2.69% 12. Calorific value. 13650 B.T.U.
13. Chemical composition of gas: Carbonic acid 6.60% Oxygen 0.30% Hydrogen 18.90% Methane 0.57% Carbon monoxide 24.30% Nitrogen 49.33% 14. Calorific value of gas, combination water, at 59° F. constant volume reduced to 32° F. and atmospheric pressure 140 B.T.U.
15. Cooling water at the inlet of the cylinder-head 55.4 deg. F. Temperature at the outlet 109.5 deg. F. 16. Temperature at outlet of cylinder 127.5 deg. F.
17. Temperature of water in the vaporizer 158.3 deg. F.
18. Mechanical efficiency 84.6% 19. Gross consumption of coal per B.H.P. per hour 0.86 lbs 20. Thermal efficiency in proportion to the effective work and the gross consumption of coal in the gas-generator 24.3%
1. Average number of revolutions per minute 195.5 2. Corresponding effective work 33.85 B.H.P. 3. Corresponding average compression 125 lbs. 4. Average initial explosive pressure 258 lbs. 5. Average final expansion 18 lbs. 6. Vacuum at suction 6.8 lbs. 7. Average mean pressure on piston 46.2 lbs. 8. Corresponding indicated power 45. I.H.P. 9. Speed variation between full and half load 3.5%
10. Gross consumption of coal per B.H.P. per hour 1.155 lbs.
1. Average number of revolutions per minute 199 2. Minimum corresponding compression 95.55 lbs. 3. Average initial explosive pressure 220 lbs. 4. Average final expansion 0 lbs. 5. Vacuum at suction 8.8 lbs. 6. Average pressure on piston 11.2 lbs. 7. Corresponding indicated horse-power. 11 I.H.P. 8. Speed variation between full load and no load 5.2%