Industrial Refrigeration Volume 34-35

Industrial Refrigeration Volume 34-35

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 edition. Excerpt: ... fire and filling the outside supply or collecting vessel with liquid anhydrous ammonia, the temperature and boiling point of which at atmospheric pressure (--29.6 is far below the temperature of the brine, etc., in which the coils are immersed, we arrive at the application of the described process for refrigerating and ice making purposes. The scant supply generally introduced by unreliable feeding under high pressure through hand regulated expansion valves represents the prevalent system of today where for good reason only some of the pipe lines near the supply side of each coil are flooded with the refrigerant and "do the work" while those near the outlet side remain comparatively inactive. The ample supply by gravity flow through which the entire surface of the coils from end to end is made available permanently and to its full extent represents the "flooded system." No matter whether the refrigerant is circulated though the freezing coils in its liquid or gaseous state, we know, that steam, vapor or gases of a liquid have the same temperature as the fluid from which they emanate as long as they are in contact with same, and vice-versa, and we know further that the boiling point of liquidsthat is the temperature at which the tension of their vapors equals that under which the process of evaporation takes plaee----is in distinct relation to the pressure under which a liquid is held. It was in connection with the plate ice freezing process by direct use of liquid ammonia where the value of the method of supply by gravity flow was first recognized some ten years ago. Here it was of paramount importance to obtain and maintain an equally uniform efficiency in every one of the pipe lines of the coils constituting the...show more

Product details

  • Paperback | 686 pages
  • 189 x 246 x 35mm | 1,207g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236850785
  • 9781236850782