Fundamentals of Heat and Mass Transfer
7th Edition
ISBN: 9780470917855
Author: Bergman, Theodore L./
Publisher: John Wiley & Sons Inc
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Chapter 10, Problem 10.39P
To determine
To Plot: the critical heat flux as a function of water velocity. Also, identify the pool boiling and transition regions between the low and high velocity ranges.
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Saturated, pure steam at a temperature of 170 oC condenses on the outer surface of avertical tube of outer diameter 2 cm and length 1.5 m. The tube surface is maintained at auniform 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.
Region I
Region II
Maximum
Region IV
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flux.
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Nucleate
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boiling
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convection
10
Minimum
boiling
Slugs and
heat flux,4
Di
min
to
columns-
Isolated
Region II
bubbles
10
10
30
100
320
1000
AT=T,-T. (C)
Figure 2. Boiling mechanisms for water.
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4 (W/m)
Chapter 10 Solutions
Fundamentals of Heat and Mass Transfer
Ch. 10 - Show that, for water at 1-atm pressure with...Ch. 10 - The surface of a horizontal. 7-mm-diameter...Ch. 10 - The role of surface tension in bubble formation...Ch. 10 - Estimate the heat transfer coefficient, h,...Ch. 10 - Prob. 10.5PCh. 10 - Prob. 10.6PCh. 10 - Prob. 10.7PCh. 10 - Prob. 10.8PCh. 10 - Calculate the critical heat flux on a large...Ch. 10 - Prob. 10.11P
Ch. 10 - Prob. 10.12PCh. 10 - Prob. 10.13PCh. 10 - Prob. 10.15PCh. 10 - Prob. 10.16PCh. 10 - Consider a gas-fired boiler in which five coiled,...Ch. 10 - Prob. 10.18PCh. 10 - Prob. 10.19PCh. 10 - Prob. 10.20PCh. 10 - Prob. 10.22PCh. 10 - Prob. 10.24PCh. 10 - Prob. 10.25PCh. 10 - A small copper sphere, initially at a uniform,...Ch. 10 - Prob. 10.28PCh. 10 - A disk-shaped turbine rotor is heat-treated by...Ch. 10 - A steel bar, 20 mm in diameter and 200 mm long,...Ch. 10 - Electrical current passes through a horizontal....Ch. 10 - Consider a horizontal. D=1 -mm-diameter platinum...Ch. 10 - Prob. 10.34PCh. 10 - Prob. 10.35PCh. 10 - Prob. 10.36PCh. 10 - Prob. 10.37PCh. 10 - A polished copper sphere of 10-mm diameter,...Ch. 10 - Prob. 10.39PCh. 10 - Prob. 10.40PCh. 10 - Consider refrigerant R-134a flowing in a smooth,...Ch. 10 - Determine the tube diameter associated with p=1...Ch. 10 - Saturated steam at 0.1 bar condenses with a...Ch. 10 - Prob. 10.45PCh. 10 - Prob. 10.46PCh. 10 - Prob. 10.47PCh. 10 - Prob. 10.48PCh. 10 - Prob. 10.50PCh. 10 - Prob. 10.53PCh. 10 - The condenser of a steam power plant consists of...Ch. 10 - Prob. 10.56PCh. 10 - Prob. 10.61PCh. 10 - Prob. 10.62PCh. 10 - A technique for cooling a multichip module...Ch. 10 - Determine the rate of condensation on a 100-mm...Ch. 10 - Prob. 10.66PCh. 10 - Prob. 10.67PCh. 10 - Prob. 10.70PCh. 10 - Prob. 10.71PCh. 10 - Prob. 10.74PCh. 10 - Prob. 10.75PCh. 10 - A thin-walled cylindrical container of diameter D...
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