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Updated: May 17, 2025
No further progress appears to have been made with the gas-consuming type of internal combustion engine for work with aircraft; this type has the disadvantage of requiring either a gas-producer or a large storage capacity for the gas, either of which makes the total weight of the power plant much greater than that of a petrol engine.
Every acre of public land, believed to contain petroleum or natural gas, should be withdrawn from public sale and leased under conditions that regulate production. "Its use for power is justified on the Pacific coast, if used in gas-producer engines."
The most promising uses are for fuel, as bedding for stock, as a disinfectant, in briquettes for burning lime, brick, and pottery, in which it is finding a large use, and for which it is said to be particularly well fitted; and most satisfactory of all, its use in gas-producer engines.
Every ton of iron smelted requires its portion of coal for firing. If low-grade fuels in gas-producer engines, or water-power can be used it will be a great aid in conserving coal. If a limited supply of rather low-grade iron exists near a coal region, it can often be mined profitably, when, if it be far from an abundant fuel supply, it must be shipped to distant blast furnaces.
Steam uses from five to ten per cent. of the heat-units of coal, gas-producer engines use fifty per cent. and burn a lower grade of coal. One of the great problems of cities is the heavy volume of bituminous or soft coal smoke that hangs over the entire surrounding region, levying a heavy tax in cleaning and laundry work, making the air difficult to breathe, and shutting out the daylight itself.
From two to two and a half pounds will produce one horse-power per hour in gas-producer engines. By this estimate, we can see that the peat beds of this country, if properly used, may be largely employed, either now or in the future, as a substitute for the vanishing coal. Of all the fuels, natural gas may be said to be the ideal one.
This material is rich in carbon, and when used in gas-engines will furnish more power than the best Pocahontas coal when steam-engines are used. Thus one-fourth of all our coal is wasted at the mines simply because steam-engines instead of gas-producer engines have been employed.
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