Mechanics of Engineering and Machinery Volume 2, No. 1

Mechanics of Engineering and Machinery Volume 2, No. 1

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1894 edition. Excerpt: ...upon by Morin was 6 metres (19 ft.) high and 1-6 metres (5 ft.) wide, and had 36 radial floats. The sluice board was inclined 34 0 to the horizon, and the opening waso-78 metre (2 ft.) back from the beginning of the curb. The total fall was 1 9 metres (6J ft.), the height in front of sluice opening I-4 metres (4 ft.), and accordingly the pressure fall in the wheel 0-5 metre (i# ft.). The velocity of the wheel was 2 to 4 metres (6 to 13 ft.), and the velocity of the entering water 5 to 5 metres (i6to 18 ft.). As long as--did not exceed 0-63, the efficiency was n =0-41. When, however, -was between 0-5 and 0 8, r was 0-33. We have accordingly, retaining our former notation, for the delivery of this wheel in the first case, without reference to axle friction, Another wheel upon which Morin experimented was nearly 4 metres (13 ft.) high, about o-8 metre (2$ ft.) wide, 0-3 metre deep (11-8 inches), and had 24 floats. The water issued under a vertical sluice board, and passed through a guide race o-8 metre (2$ ft.) long to the wheel. This race, as well as the curb, was 01 cut stone, and the clearance was only 0-005 metre (0-2 inches). The fall was from 0-78 to 1 metre (3 ft.), the height back of the sluice was, however. o-15 to 0-45 metre (6 to 18 inches). The experiments were made for very different velocities of circumference. For very small velocities, the efficiency was also very small; for the velocity of I 5 metres (5 ft.) it was the greatest, and when the velocity of the entering water was not far from v this the greatest efficiency was 0-49. For-within the limits i and, the mean was exactly as for the preceding wheel tf = 0-74, and hence we have here also Now, we have here, I-22I, hi--h = 0-3 It, 4 hence n is only 0-42, more

Product details

  • Paperback | 140 pages
  • 189 x 246 x 8mm | 263g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 123665143X
  • 9781236651433