A surface condenser consists o

A surface condenser consists of a bank of horizontal tubes contained within a steel shell. Saturated…al tubes contained within a steel shell. Saturated steam is condensed on the outside of the water-cooled tubes and the condensate drains to the bottom of the shell where it collects and is pumped out. Tubes towards the bottom of the tube bank are drenched by the water draining from above, and the average thickness y (metres) of the laminar water film flowing over a tube is given by the equation y = 1.39(mu gamma/rho^2 g)^1/3 where I is the mass flowrate of water of water falling onto unit length of tube, and the other symbols have their usual meanings. Since the water falling onto the top of the tube divides and flows down both sides, the average Reynolds number is given by Re = 2 gamma/mu Assuming that local condensation does not significantly increase the film thickness on the drenched tubes, use the following data to find the heat flux and condensation rate per unit area for one particular tube.

A surface condenser consists of a bank of horizontal tubes contained within a steel shell. Saturated...

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