errata secondprinting

8/11/2019 Errata Secondprinting

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Heat and Mass Transfer: Fundamentals & ApplicationsFourth Edition (Second Printing)

Yunus A. Cengel & Afshin J. Ghajar

McGraw-Hill, 2011

Errata SheetLast Update: December 13, 2011

Conversion Factors (Inside Front Cover)

Thermal resistance: Change 1 K/W = 0.52750 F/hBtu to 1 K/W = 0.52750 Fh/Btu

Chapter 1

p. 58, Prob. 1-129, 6thline: Change = 3 mm to = 3 mm

Chapter 2

p. 124, Prob. 2-88, 2ndline: Change k to k

p.127, Prob. 2-128,6thline: Change at after decrease to in and delete surface after ballbearing. The sentence should read temperature decrease in the ball bearing at a given

Chapter 3

p. 161, 15thline below Eq. (3-50): change 0.05 W/m2K to 0.05 W/mK.

p. 171, Table 3-4, 1stline, last two columns: Change to in two places

p. 174, 5thline after Eq. (3-83): Change L=L=5

1m to L = 5/m

p. 208, Prob. 3-112: Delete Fig. P3-112

Chapter 4

p. 239, Table 4-3, the last four Bessel function values in the last column should be positive, asshown below:

2.6 0.0968 0.47082.8 0.1850 0.4097

3.0 0.2601 0.3391

3.2 0.3202 0.2613

p. 253, Figure 4-29(c), top curve: Change Time, t = 0.01 h to Time, t = 10 h

p. 257, Figure 4-36: move the Plane Wall up, it should only cover the pink portion of the LongCylinder

p.278, Prob. 4-12: Replace problem statement with To warm up some milk for a baby, a motherpours milk into a thin-walled cylindrical containerwhose diameter is 6 cm. The height of the milkin the container is 7 cm. She then places the container into a large pan filled with hot water at70C. The milk is stirred constantly, so that its temperature is uniform at all times. If the heattransfer coefficient between the water and the container is 120 W/m2K, determine how long it

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will take for the milk to warm up from 3C to 38C. Assume the entire surface area of thecylindrical container (including the top and bottom) is in thermal contact with the hot water. Takethe properties of the milk to be the same as those of water. Can the milk in this case be treatedas a lumped system? Why? Answer: 4.50 min"

Chapter 5

p. 309, Fig. 5-20 (lower part volume element of a general interior node of the fin): Change the

right hand side length from L (m )x to from L (m + )x

Chapter 6

p. 409, Figure P6-10: Change bottom plate label from Ts,1 to Ts,2

p. 411, Figure P6-45: Change Air to Water

Chapter 7

p. 439, Figure 7-25: Change the figure caption to Flow patterns for in-line and staggered tubebanks

Chapter 8

p. 505, Reference 5, last line after No.8: Change 2010 (in press) to (2010), pp. 646-657.

p. 516, Prob. 8-99, 4thline: Delete at after enters

Chapter 9

p. 550, 13thline from top of the page: Change transfort to transport

p. 552, section heading: Change SCPECIAL to SPECIAL

p. 565, Prob. 9-13: Change problem number to 9-13E

Chapter 10

p. 599, 4thline after Eq. 10-8: Change Ac= p to Ac= p

p. 600, 6thline from the bottom of the page: Change 450< Re < 1800 to 30< Re < 1800

p. 601, 3rdline above Eq. 10-12: Change in the numerator of the equation (y) to (y)

p.603, 3rdline above Eq. 10-22: Change Eq. 10-9 to Eq. 10-9a

p. 611, 5thline from the top of the page: Change Rohsenow to Rohsenow (1973)

p. 611, Eq. 10-36: Change 22C < Tsat, 100C to 22C < Tsat


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Chapter 11

p.655, 1stline below Eq. 11-38: Change ratio to rate

p.660, Example 11-8, 4thline: Change 1.08 m to 108 m

p.672, Figure P11-70: Change the direction of the two black arrows from left to right to right toleft

Chapter 12

p. 696, Eq. 12-15: Change the color of black integrals to orange

p.724, Prob. 12-44, 3rdline: Change 2.87 10-5 to 2.87 105

p.724, Figure P12-44: Change Eb=2.87 10-5 to Eb=2.87 10

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Chapter 13

p.748, 5thline above Eq. 13-21: Change I to i

p.770, 3rdline: Change (Figs. 12-36 and 12-37) to (Figs. 13-36 and 13-37)

Chapter 14

p. 802, Eq. 14-13 for Mass basis: Change dx

drA to dx

d A

p. 802, Eq. 14-14: Change to

p. 808, Example 14-2, 7thline: Change 62,900 bar to 62,000 bar

p. 810, 1stequation in the analysis portion of Example 14-4: Change to

p. 811, 5thline above Eq. (14-21): Change to Amdiff , Adiffm ,

p. 833, Expression below Figure 14-44: Change )( ,,0

AsAmass

y

AAB wwh

y

CD to

)( ,,0

AsAmass

y

A

AB wwhy

wD

p. 835, Eq. 14-82: Change )( ,,0

,

AsAmass

y

AABsA wwh

y

wDj to

)( ,,0

,

AsAmass

y

A

ABsA wwhy

wDj

p. 848, 2ndColumn, 4thline: Change Le = 1 to Le2/31

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