Engine Operational
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Q17

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GATE2025GATE 2025
Chemical Engineering
In industrial heat exchanger design, the overall heat transfer coefficient U is estimated from the equation
..
where hᵢ and h₀ are the convective heat transfer coefficients on the inner and outer side of the tube,
respectively. This is valid
for(i)t/istheC ube of (ii)t/CTopti hermal conductivity.
Which one of the following ORRE on to fill in the gaps (i) and (ii)?

Options

  1. A.
    (i) thick-walled, (ii) high
  2. B.
    (i) thin-walled, (ii) high
  3. C.
    (i) thin-walled, (ii) low
  4. D.
    (i) thick-walled, (ii) low (1 Mark)

Answer

B

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