Menu
Home / GATE 2017-2018 / GATE Agricultural :: Discussion

Discussion :: GATE Agricultural

  1. A single effect vacuum evaporator has 100 tubes of 25 mm diameter. One thousand kg feed of milk per hour with 15% TS is concentrated to 20% TS in the evaporator. Film heat transfer coefficients on either sides of the tube are 5000 and 800 W m2 K-1. Thermal conductivity of 1.5 mm thick SS tubes is 15 W m-1 K-1. Latent heat of vapourization under vacuum is 2309 kJ kg-1. For 100C temperature difference across the tube wall, the height of each tube, in m is
    2. A.
    1.36
    B.
    2.13
    C.
    2.56
    D.
    3.17

    View Answer

    Workspace

    View Answer

    Answer : Option D

    Explanation :

    -NA-

Write your comments here:

Be The First To Comment