Abstract
In Part IX of this series, experiments were described showing ( inter alia ) that, under tbs usual bring conditions, the explosion range of "well-dried" CO-air mixtures becomes progressively narrower as the initial pressure increases. In each case the components of the experimental mixtures bad been slowly passed into the bomb (at room temperature) from cylinders at 100 to 150 atmospheres, through an 8-inch long column of freshly distilled and specially purified phosphoric anhydride, so that they would all be fired at room temperature in a uniformly very dry condition. Under such conditions, the "explosion ranges" found for CO-air mixtures at various initial pressures were as follows:- It will be observed that, whereas an increase in P i beyond 50 atmospheres hardly affected the lower limit, where the oxygen was present in great excess, the upper limit, when it was always in considerable detect, continued to tall, so that the "explosion range" continued to contract with increasing pressure.
Highlights
In Part IX* of this series, experiments were described showing that, under the usual firing conditions, the explosion range of “ well-dried ” CO-air mixtures becomes progressively narrower as the initial pressure increases
Hitherto it has been our regular practice to introduce the constituents of our mixtures slowly and successively into the bomb from cylinders where they had been stored at pressures somewhere between 100 and 200 atmospheres, en route, through an 8- to 10-inch column of redistilled and purified phosphoric anhydride, a pro cedure which ensures the mixture being fired in a state of fairly uniform “ dryness ” corresponding with something substantially more than “ CaCl2dryness,” namely, with a moisture content probably below 0-02 per cent
Reference to the third series of experiments described in Part X I hereof will show that as nearly as possible “ optimum ” combustion conditions would be attained in such “ moist ” experiments at each of the two initial pressures in question
Summary
In Part IX* of this series, experiments were described showing ( alia) that, under the usual firing conditions, the explosion range of “ well-dried ” CO-air mixtures becomes progressively narrower as the initial pressure increases. The “ explosion ranges ” found for CO-air mixtures at various initial pressures were as follows :—
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