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  • Mechanical engineer

    imhomoh

    imhomoh

    @imhomoh-vgHQIr
    Updated: Oct 23, 2024
    Views: 1.3K
    Design and fabrication of a wind turbine or automated umbrella that open wen rain or sun meet it
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  • Kaustubh Katdare

    Administrator • Jul 30, 2012

    Welcome to CE, friend. We're happy to have you with us. Hope to see you active here. Explore our Mechanical Engineering section and post your ideas there.
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  • Ramani Aswath

    Member • Jul 30, 2012

    IR rain sensors are already in the market and in use for closing sliding roofs and such when it rains. They can easily be used for your application.
    #-Link-Snipped-#
    You can easily integrate this with a photo resistor with a suitable grey filter to do the same when the incident sunlight is above a designed value.
    Something on these lines:

    [​IMG]
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  • Harshad Italiya

    Member • Jul 30, 2012

    Welcome to CE. Now you have reference design start working buddy.
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  • zaveri

    Member • Aug 1, 2012

    imhomoh
    need any assist to achieve these
    welcome dude. come to the mechanical section and explain your problem in detail.
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  • Kedar Malwadkar

    Member • Aug 3, 2012

    Welcome to CE!
    Lot's more to explore in mechanical section!
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  • kn081993

    Member • Jul 20, 2016

    can anybody give the correct answer of this question?
    in a particular arc welding operation 5 mm thick steel plate require 40 A current , what should be the current requirement for welding 10 mm thickness plate?
    a) 10 A
    b) 20 A
    c) 60 A
    d) 160 A

    pls answer
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  • Ramani Aswath

    Member • Jul 20, 2016

    <a href="https://www.mig-welding.co.uk/arc-flat-joints.htm" target="_blank" rel="nofollow noopener noreferrer">Arc (MMA) Welding Flat Joints</a>
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  • kn081993

    Member • Jul 20, 2016

    sir i watched this topic but i am not getting any help ..i m not getting any formula for answer of this question..pls help...
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  • Ramani Aswath

    Member • Jul 20, 2016

    There cannot be a formula as such. The heat transfer during welding is far from steady state. Too many factors are involved. Thickness is only one. The practice is to start with a smaller current and increase it gradually till a satisfactory weld is got.
    My knowledge in welding is very limited and non structural.
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  • kn081993

    Member • Jul 20, 2016

    ok sir
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  • Azar Deep

    Member • Aug 19, 2016

    kn081993
    can anybody give the correct answer of this question?
    in a particular arc welding operation 5 mm thick steel plate require 40 A current , what should be the current requirement for welding 10 mm thickness plate?
    a) 10 A
    b) 20 A
    c) 60 A
    d) 160 A

    pls answer
    C)60
    Are you sure? This action cannot be undone.
    Cancel
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