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    Ows Calculations Revised 01

    Uploaded by

    Hilary Abaratu
    The document provides calculations to determine the final dimensions of an oil-water separator. It includes the densities of oil and water, diameter of oil droplets, runoff coefficients, and calculates the horizontal and vertical velocities, cross-sectional area, and ratio of horizontal to vertical velocity. The minimum and maximum dimensions of the separator are defined. The final calculated length is 9.33 meters, width is 2.6 meters, and depth is 1.3 meters.

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    © All Rights Reserved
    Download as XLSX, PDF, TXT or read online from Scribd

    Ows Calculations Revised 01

    Uploaded by

    Hilary Abaratu
    51 views3 pages
    The document provides calculations to determine the final dimensions of an oil-water separator. It includes the densities of oil and water, diameter of oil droplets, runoff coefficients, and calculates the horizontal and vertical velocities, cross-sectional area, and ratio of horizontal to vertical velocity. The minimum and maximum dimensions of the separator are defined. The final calculated length is 9.33 meters, width is 2.6 meters, and depth is 1.3 meters.

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    © © All Rights Reserved

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    The document provides calculations to determine the final dimensions of an oil-water separator. It includes the densities of oil and water, diameter of oil droplets, runoff coefficients, and calculates the horizontal and vertical velocities, cross-sectional area, and ratio of horizontal to vertical velocity. The minimum and maximum dimensions of the separator are defined. The final calculated length is 9.33 meters, width is 2.6 meters, and depth is 1.3 meters.

    Copyright:

    © All Rights Reserved
    Download as XLSX, PDF, TXT or read online from Scribd
    Download as xlsx, pdf, or txt
    51 views3 pages

    Ows Calculations Revised 01

    Uploaded by

    Hilary Abaratu
    The document provides calculations to determine the final dimensions of an oil-water separator. It includes the densities of oil and water, diameter of oil droplets, runoff coefficients, and calculates the horizontal and vertical velocities, cross-sectional area, and ratio of horizontal to vertical velocity. The minimum and maximum dimensions of the separator are defined. The final calculated length is 9.33 meters, width is 2.6 meters, and depth is 1.3 meters.

    Copyright:

    © All Rights Reserved
    Download as XLSX, PDF, TXT or read online from Scribd
    Download as xlsx, pdf, or txt
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    Dd

    D
    h
    DENSITY OF OIL
    DENSITY OF WATER
    C
    I
    A
    L
    W
    d
    VERTICAL RATE OF RISE OF OIL DROPLET IN WATER, V t
    VERTICAL RATE OF RISE OF OIL DROPLET IN WATER, V t
    q
    Ac
    Vh
    Vh
    FSC
    Vh/Vt
    RULES
    dmin
    dmax
    Wmin
    Wmax
    D:W RATIOmin
    D:W RATIOmax
    W
    Ac
    Vh
    Vh/Vt
    Ft
    F
    L

    FINAL DIMENSION OF SEPARATOR


    L
    W
    d
    UOM
    DIFFERECE IN DENSITY BETWEEN WATER & OIL 137 KG/M³
    DIAMETER OF OIL DROPLETS 150 MICROMETERS
    DYNAMIC VISCOSITY OF WATER 0.001348 PASCAL-SECOND
    860 KG/M³
    997 KG/M³
    RUN OFF COEFFICIENT OF MATERIAL 0.9
    RAIN INTENSITY 40 MM/HR.
    CATCHMENT AREA 2250 SQM
    LENGTH OF RUN OFF CONCRETE 50 M
    WIDTH OF RUN OFF CONCRETE 45 M
    DEPTH OF SEPARATOR (ASSUMED) 1.3 M
    4.48654673590505 M/HR
    0.0747757789317507 M/MINUTE
    RAIN WATER MAXIMUM RUN OFF 1.35 M³/MIN
    CROSS SECTIONAL AREA OF SEPARATOR IN SQM
    HORIZONTAL VELOCITY 1.12163668397626 M/MINUTE
    HORIZONTAL VELOCITY 0.91 M/MINUTE
    SHORT CIRCUITING FACTOR 1.2
    RATIO 12.1697160898929

    MINIMUM DEPTH OF SEPARATOR 1M


    MAXIMUM DEPTH OF SEPARATOR 2.4 M
    MINIMUM WIDTH OF SEPARATOR 2M
    MAXIMUM WIDTH OF SEPARATOR 6M
    MINIMUM DEPTH TO WIDTH RATIO 0.3
    MAXIMUM DEPTH TO WIDTH RATIO 0.5
    WIDTH OF SEPARATOR 2.6 M
    CROSS SECTIONAL AREA OF SEPARATOR IN SQM 3.38 SQM
    HORIZONTAL VELOCITY 0.399408284023669 M/min
    RATIO OF HORIZONTAL VELOCITY TO VERTICAL VELO 5.34141255002126
    TURBULENCE FACTOR 1.12
    DESIGN FACTOR 1.344
    LENGTH OF SEPARATOR 9.33251600739714 M

    LENGTH 9.33251600739714 M
    WIDTH 2.6 M
    DEPTH 1.3 M
    Vh/Vt TURBULENCE FACTOR, Ft
    20 145
    15 137
    10 1.27
    6 1.14
    6 107

    Vt=1.962*10^(-9)*Dd*D^2/h

    C*I*A/60000

    15Vt OR q/Ac

    Vh/Vt

    d/D:W RATIOmax
    d*W
    q/Ac
    Vh/Vt
    BY INTERPOLATION
    Fsc*Ft
    F*(Vh/Vt)*d

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