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Thread: Delta T Cooling time

  1. #1
    Jonathan Finlay
    Guest

    Delta T Cooling time

    Hi All,

    I am trying to work out how long it would take hydraulic oil to cool down using a Air cooled heat exchanger.

    The info is as follows:

    ambient temperature: 42 degrees celsius
    inlet oil temperature: 140 degrees celsius
    outlet oil temperature: 50 degrees celsius
    oil flow rate: 48 litres/min
    tank size : 220 litres
    surface area: 2 m²
    air flow: 10 m³/sec

    any help will be appreciated

    thanks

  2. #2
    Technical Fellow Kelly_Bramble's Avatar
    Join Date
    Feb 2011
    Location
    Bold Springs, GA
    Posts
    2,625
    Welcome to EE!

    The following document does a real good job discussing the basics of designing a heat exchanger.

    Heat Exchanger Design.pdf

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