1.

A 0.5m square plate is to be used to condense dry saturated steam at 0.08bar, if the wall surface is to be maintained at 18.5 , calculate the Convective heat transfer coefficient h at a distance of 25cm.
Given Tsat = 41.5 , density = 995kg/m3, hfg = 2402 KJ/m2K, K = 2.22 KJ/mK, = 8.01 x 10 4 N/m2s

A. 160 10<sup>5</sup> J/m<sup>2</sup>K
B. 3.5 10<sup>5</sup> J/m<sup>2</sup>K
C. 450 10<sup>5</sup> J/m<sup>2</sup>K
D. 150 10<sup>5</sup> J/m<sup>2</sup>K
Answer» C. 450 10<sup>5</sup> J/m<sup>2</sup>K


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