36 candles. | 1 litre = 1.27 candles.
1 cubic foot = 38.5 candles. | 1 cubic foot = 35.9 candles.
1 candle = 0.736 litre. | 1 candle = 0.79 litre.
1 candle = 0.026 cubic foot. | 1 candle = 0.028 cubic foot.
If the two streams of gas impinge at an angle of 90 deg., twin-injector
burners for acetylene appear to work best when the gas enters them at a
pressure of 2 to 2.5 inches; for a higher pressure the angle should be
made a little acute. Large burners require to have a wider distance
between the jets, to be supplied with acetylene at a higher pressure, and
to be constructed with a smaller angle of impingement. Every burner, of
whatever construction and size, must always be supplied with gas at its
proper pressure; a pressure varying from time to time is fatal.
It is worth observing that although injector burners are satisfactory in
practice, and are in fact almost the only jets yet found to give
prolonged satisfaction, the method of injecting air below the point of
combustion in a self-luminous burner is in some respects wrong in
principle. If acetylene can be consumed without polymerisation in burners
of the simple fish-tail or bat's-wing type, it should show a higher
illuminating efficiency.
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