This question requires the use of the steam property tables $($Rogers and Mayhew$).$ All properties should be evaluated at the temperature of the steam.

Saturated, pure steam at a temperature of $170$ oC condenses on the outer surface of a vertical tube of outer diameter $2$ cm and length $1\mathrm{.}5$ m$.$ The tube surface is maintained at a uniform temperature of $150$ oC$.$

Calculate:

$*$ a$)$the local film condensation heat$-$transfer coefficient at the bottom of the tube.

$*$ b$)$the average condensation heat$-$transfer coefficient over the entire length of the tube.

$*$ c$)$ the total condensation rate at the tube surface.