For infinite parallel planes having emis-sivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by-A-(ε1 + ε2)/ε1.ε2B-ε1.ε2/(ε1 + ε2 ε1.ε2)C-ε1.ε2D-ε1 + ε2-B-ε1.ε2/(ε1 + ε2 ε1.ε2)

Question

For infinite parallel planes having emis-sivities &epsilon;1 &amp; &epsilon;2, the interchange factor for radiation from surface 1 to surface 2 is given by-A-(&epsilon;1 + &epsilon;2)/&epsilon;1.&epsilon;2B-&epsilon;1.&epsilon;2/(&epsilon;1 + &epsilon;2 &epsilon;1.&epsilon;2)C-&epsilon;1.&epsilon;2D-&epsilon;1 + &epsilon;2-B-&epsilon;1.&epsilon;2/(&epsilon;1 + &epsilon;2 &epsilon;1.&epsilon;2)

APTITUDE CRACK · Accepted Answer

B &epsilon;1.&epsilon;2/(&epsilon;1 + &epsilon;2 &epsilon;1.&epsilon;2) The interchange factor for radiation from surface 1 to surface 2 between two infinite parallel planes with emissivities &epsilon;1​ and &epsilon;2​ is given by: 2F12​=&epsilon;1​+&epsilon;2​&minus;&epsilon;1​&epsilon;2​&epsilon;1​&epsilon;2​​ Therefore, the correct choice is: &epsilon;1​+&epsilon;2​&minus;&epsilon;1​&epsilon;2​&epsilon;1​&epsilon;2​​

Chemical Engineering Basics

For infinite parallel planes having emis-sivities ε₁ & ε₂, the interchange factor for radiation from surface 1 to surface 2 is given by

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Chemical Engineering Basics

For infinite parallel planes having emis-sivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by

Solution

For help Students Orientation Mcqs Questions

For infinite parallel planes having emis-sivities ε₁ & ε₂, the interchange factor for radiation from surface 1 to surface 2 is given by

For help Students Orientation
Mcqs Questions