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Filtering by: Creator Hancock, James F. Remove constraint Creator: Hancock, James F. Contributor advisor sim Knudsen, James G. Remove constraint Contributor advisor sim: Knudsen, James G.

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  • Fouling characteristics of a desalted crude oil

    Creator:
    Lin, Dah-cheng
    Abstract:
    The fouling characteristics of a desalted crude oil were investigated in a systematic investigation. There are two main parts in this study, the dry bulk tests (dehydrated crude oil) and the wet bulk tests (to which desalter brine was added). Three barrels of desalted crude oil provided by Amoco Oil...
    Resource Type:
    Masters Thesis
    Full Text:
    were 400 450 °F (3.0 ft/sec), 525 550 °F (5.5 ft/sec), 550 600 °F (8.0 ft/sec) and about 600 °F (10.0

  • Deposition characteristics of magnesium silicate and calcium carbonate in cooling tower water

    Creator:
    Lee, Sai Heep
    Abstract:
    Deposition characteristics of magnesium silicate and calcium carbonate on a heated surface in cooling tower water using city water as make-up was investigated. Flow velocity, bulk temperature and calcium hardness were maintained constant at 5.3 ft/ sec, 95°F and 150 ppm as CaCO₃ respectively whereas surface temperature varied from 105°F...
    Resource Type:
    Masters Thesis
    Full Text:
    for Privacy DR. JAMES G. KNUDSEN Deposition characteristics of magnesium silicate and calcium

  • Calcium carbonate scaling in a deluged dry cooling system

    Creator:
    Barton, Kathleen Patricia
    Abstract:
    Scaling characteristics of calcium carbonate on a heated surface in a deluged dry cooling system were investigated. Bulk temperature of the deluge water was maintained constant at 90°F. Air flow velocity was maintained constant at 181 cfm., and deluge water flow was maintained at the minimum level that provided thorough...
    Resource Type:
    Masters Thesis
    Full Text:
    System Abstract approved: Redacted for Privacy Dr..-James G.rkinudsen Scaling characteristics of

  • Fouling characteristics of cooling tower water : pH effect

    Creator:
    Roy, Bhasker Vilva
    Abstract:
    The fouling characteristics of simulated cooling tower water flowing over a heated metallic surface has been studied. The bulk temperature of the water was maintained around 95°F. Mainly three different water qualities with respect to calcium hardness level were investigated. The pH was controlled by the addition of hydrochloric acid....
    Resource Type:
    Masters Thesis
    Full Text:
    : Redacted for Privacy Dr. James G. Knudsen The fouling characteristics of simulated cooling tower water

  • Fouling of heat transfer surfaces under forced circulation boiling condition

    Creator:
    Imdakm, Abdussalam Omar
    Abstract:
    Various conditions of heat flux in the range of 46600 to 93300 Btu/hr ft² and water velocity in the range of 1.44 to 2.16 ft/sec were tested under carefully controlled conditions to determine their effect on scale formation, and the characteristics of scale. Inlet temperature and bulk temperature were maintained...
    Resource Type:
    Masters Thesis
    Full Text:
    maintained constant at 208 °F and 212 °F, respectively, whereas surface temperature varied from 228 °F to

  • Calcium carbonate scaling characteristics of cooling tower water

    Creator:
    Coates, Kenneth Edwin
    Abstract:
    Scaling characteristics of calcium carbonate on a heated surface in cooling tower water was investigated. Bulk temperature was maintained constant at 95°F. Flow velocities and surface temperatures ranged from 3 ft/sec to 10.3 ft/sec and from 105°F to 170°F respectively. City water was used as make-up for two different water...
    Resource Type:
    Masters Thesis
    Full Text:
    Cooling Tower Water __AI Abstract approved: Redacted for Privacy DIT. JAMES MKNUDSIN Scaling

  • Effects of water quality and surface temperature on the scaling characteristics of cooling tower water

    Creator:
    Lahm, Lawrence
    Abstract:
    The fouling of cooling tower water was investigated as a function of heater surface temperature and water quality. In particular, the effects on fouling of the addition of calcium in excess of the amounts required for saturation were examined. First, the average bulk water temperature was 97 ± 1 degree...
    Resource Type:
    Masters Thesis
    Full Text:
    . Abstract approved: Redacted for Privacy o4. James G. Knudsen The fouling of cooling tower water was

  • Turbulent heat transfer in annuli at large diameter ratios

    Creator:
    Unzicker, William Frank
    Abstract:
    Heat transfer from the inner wall of an annulus to subcooled water in turbulent parallel flow was studied. The inner core of the annulus consisted of wires varying from 0.0019 to 0.0197 inch in diameter. The outer tube consisted of a 1.01 inch diameter glass tube 24 inches long. Diameter...
    Resource Type:
    Masters Thesis
    Full Text:
    . The heat transfer coefficient varied from 1840 to 4990 .BTU /hr. ft2` F for the 0. 0197 inch

  • Surface temperature effects on the fouling characteristics of cooling water

    Creator:
    Story, Michael Kenneth
    Abstract:
    A cooling tower system was built and fouling resistances were studied for cooling water flowing over a heated tubular surface. The cooling water studied was formulated in an effort to match industrial cooling water quality. The water used in this study had an average Ryznar Stability Index of 6.23 and...
    Resource Type:
    Masters Thesis
    Full Text:
    environment. Fouling resistances were obtained at surface temperatures from 136°F to 199°F. The flow velocity

  • Fouling characteristics of organic fluids

    Creator:
    Oufer, Lounes
    Abstract:
    A systematic study of the fouling characteristics of organic fluids was conducted in an annular test section. The study consisted of four main parts. First, the effect of key factors such as surface temperature, velocity, concentration, and oxygen on fouling from the system styrene-heptane-polystyrene was investigated. While surface temperature increased...
    Resource Type:
    Dissertation