Heat Transfer - Fins

A very long fin of a uniform square cross-section is replaced by another very long fin of a uniform circular cross-section of the same material. Assume uniform and identical heat transfer coefficient for both the fins. I...

An infinitely long pin fin, attached to an isothermal hot surface, transfers heat at a steady rate of Q₁ to the ambient air. If the thermal conductivity of the fin material is doubled, while keeping everything else const...

The heat loss from a fin is 6 W. The effectiveness and efficiency of the fin are 3 and 0.75, respectively. The heat loss (in W) from the fin, keeping the entire fin surface at base temperature, is _________