Which of the following situations can be approximated to a steady state heat tra

Question

Which of the following situations can be approximated to a steady state heat transfer system?

Options:

A . A red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmosheric air at 35°C

B . 10 kg of dry saturated steam at 8 kgf/cm² flowing through a short length of stainless steel pipe exposed to atmospheric air at 35°C

C . Boiling brine kept in open vessel when the bottom surface temperature of the vessel is maintained constant at 180°C

D . A sub-cooled refrigerant liquid at 8°C flowing at the rate of 6 Kg/minute through a copper pipe exposed to atmospheric air at 35°C

Answer: Option B

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