Experiments made at the New York navy yard, to determine the relative economic efficiency, in proportion of weight of steam used to weight of water lifted, of a reciprocating-pulvp, a rotary-pump, and a steam siphon-pump, all three being auxiliary steam-pumps for vessels, and raising water to the same height
✍ Scribed by Isherwood
- Publisher
- Elsevier Science
- Year
- 1889
- Tongue
- English
- Weight
- 930 KB
- Volume
- 128
- Category
- Article
- ISSN
- 0016-0032
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✦ Synopsis
The following experiments were made under the direction of the writer at the New York Navy Yard during the months of March and April, 1867, to ascertain the weight of water lifted through a given height per pound weight of steam expended, by means of a reciprocating-pump, a rotarypump, and a steam siphon pump. The reciprocating and rotary-pumps were constructed for auxiliary steam pumps on board steamers, to pump water into and out of the boilers, and also from the vessel overboard. The siphon pump was constructed for the latter purpose only. The experiments were conducted, and with the utmost accuracy, by First Assistant Engineer Clark Fisher, U. S. N.
DESCRIPTION OF THE PUMPS.
The Reciprocating-Pump used is known as "The Woodward patent improved safety Steam-Pump and Fire Engine." It is of the No.~# siee~:~-The steam cylinder is 9 inches in diameter and the stroke of its piston is 6 inches. The diameter of the steam piston-rod i s i~ inches, making the average net area of the piston for a double stroke 62"414 square inches. The eylinderis horizontal, and uses the steam without expansion and without condensation. The steam-valve is an ordinary three-ported slide, and is worked by an eccentric on the fly-wheel shaft. The water cylinder or pump is 5 inches in diameter and has a 6-inch stroke of piston, the rod of which is I} inches in diameter, being a direct prolongation of the