Total condensation rate and heat transfer rate

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Reference no: EM13946417

1. Determine the total condensation rate and heat transfer rate for the process of Problem 10.46 when the pipe is oriented at angles of () = 0, 30, 45, and 60° from the horizontal.

2. A horizontal tube of 50-mm outer diameter, with a surface temperature of 34°C, is exposed to steam at 0.2 bar. Estimate the condensation rate and heat trans- fer rate per unit length of the tube.

3. The tube of Problem 10.58 is modified by milling sharp-cornered grooves around its periphery, as in Figure 10.15. The 2-mm-deep grooves are each 2 mm wide with a pitch of S = 4 mm. Estimate the minimum condensation and heat transfer rates per unit length that would be expected for the modified tube. How much is the performance enhanced relative to the orig- inal tube of Problem 10.58?

Reference no: EM13946417

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