Which of the following situations can be approximated to a steady stat

1.	Which of the following situations can be approximated to a steady state heat transfer system ?
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» C. Boiling brine kept in open vessel when the bottom surface temperature of the vessel is maintained constant at 180¬∞C.

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

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