Recent content by obscure

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    Steady state temp. distribution

    What about the upper and lower boundaries? Bc should be x=0 t=to X=b/2 t=to Y=0 dt/dy =0 Y=b t= to(x)
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    Steady state temp. distribution

    Shouldn't we found T(x,y) and for upper and lower parts should I write as afuction of x To(x) and then define new temperature variable Q=T-To to eliminate nonhomog on the left side
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    Steady state temp. distribution

    Homework Statement Homework Equations ıt is nonhomog type ,2D heat conduction problem The Attempt at a Solution I don't understant To parts so I couldn't attemp a solution.
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    Nonhomogeneous BC Heat Conduction

    I am always confused with cylindrical coordinates. I know how to solve this but I couldn't formulate the problem as you sad I added z term.
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    Nonhomogeneous BC Heat Conduction

    Homework Statement A very long cylinder has temperature T1 impressed on half of its peripheral surface and temperature T2 impressed on the other half. Find T(r, θ).Homework Equations governing eq 1/r ∂/∂r(r∂/∂r)+∂2T/∂z2 The Attempt at a Solution I am right at r=0 ;T=T1 at r=r' T=T2 to make BC...
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    Minimum work to separate O2 &N2 from air

    1 kmol of oxygen at 25C and 100kPa and 1 kmol of nitrogenat 25C and 100kPa from atmosphere
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    How Do You Calculate Work and Entropy Generation for Reversible Processes?

    Homework Statement Atmospheric air at 300K and 100kPa is to be delivered to a line at 600K, 200kPa. Two possible schemes for doing this are suggested. The first scheme involves reversible adiabatic compression and then internally reversible isobaric heating. .The second scheme involves...
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    Minimum work to separate O2 &N2 from air

    1. assume air is an iseal gas at 25C and 100kPa. the mole fractions of components are nitrogen_0.7567 oxygen=0.2035 water vapor=0.0303 carbon dioxide=0.0003 Calc. min work to separate a-1kmol O2 at 25C 100kPa b-1kmol N2 at 25C 100kPa from atmosphere Homework Equations...