HEATING MARINE BOILERS WITH LIQUID FUEL.


We were recently witness of an experiment made at Eragny Conflans on
the steam yacht Flamboyante. It was a question of testing a new
vaporizer or burner for liquid fuel. The experiment was a repetition
of the one that the inventor, Mr. G. Dietrich, recently performed with
success in the presence of Admirals Cloue and Miot.

The Flamboyante is 58 ft. in length, 9 ft. in width, draws 5 ft. of
water, and has a displacement of 10 tons. She is provided with a
double vertical engine supplied by a Belleville boiler that develops
28 horse power. The screw makes 200 revolutions per minute, and gives
the yacht a speed of 6½ knots.

Mr. Dietrich's vaporizer appears to be very simple, and has given so
good results that we have thought it of interest to give our readers a
succinct description of it. In this apparatus, the inventor has
endeavored to obtain an easy regulation of the two essential
elements--naphtha and steam.

Fig. 1 represents the apparatus in section. The steam enters through
the tubulure, A, and finds its way around the periphery of a tuyere,
D. It escapes with great velocity, carries along the petroleum that
runs from two lateral tubulures, B (Fig. 2), and throws it in a fine
spray into the fireplace, through the nozzle, C (Fig. 1), which is
flattened into the shape of a fan opened out horizontally. The mixture
at once ignites in contact with the hot gases, and gives a beautiful,