Archives: Solution Manual
978-0073523439 Chapter 1
1 Solutions to end–of–chapter problems Engineering Economy, 8th edition Leland Blank and Anthony Tarquin Chapter 1 Foundations of Engineering Economy Basic Concepts 1.1 Financial units for economically best. 1.2 Morale, goodwill, dependability, acceptance, friendship, convenience, aesthetics, etc. 1.3 Measure of […]
978-0073398198 Chapter 14 Part 8
14-137 14-181 Liquid toluene evaporates into air from the open-top of a cylindrical container. The concentration of toluene at a certain location is to be determined. Properties The molar mass of toluene is 92 kg/kmol. The diffusion coefficient of toluene […]
978-0073398198 Chapter 14 Part 7
14-121 Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. 14-165 Glass bottles are washed in hot water in an uncovered rectangular glass washing bath. The rates of heat loss […]
978-0073398198 Chapter 14 Part 6
14-101 14-148 The liquid layer on the inner surface of a circular pipe is dried by blowing air through it. The mass transfer coefficient is to be determined. Assumptions 1 The low mass flux model and thus the analogy between […]
978-0073398198 Chapter 14 Part 5
14–81 Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. 14-117E The pressure in a carbon dioxide pipeline is maintained constant by venting to the atmosphere through a long tube. […]
978-0073398198 Chapter 14 Part 4
14–61 Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. 14–94 A layer of glucose is submerged under a deep layer of water. (a) The time required for the glucose […]
978-0073398198 Chapter 14 Part 3
14–41 14-67 Pure N2 gas is flowing through a rubber pipe. The rate at which N2 leaks out by diffusion is to be determined for the cases of vacuum and atmospheric air outside. Assumptions 1 Mass diffusion is steady and […]
978-0073398198 Chapter 14 Part 2
14–21 14–45 A rubber plate is exposed to nitrogen. The molar and mass density of nitrogen in the rubber at the interface is to be determined. Assumptions Rubber and nitrogen are in thermodynamic equilibrium at the interface. Properties The molar […]
978-0073398198 Chapter 14 Part 1
14-1 Solutions Manual for Heat and Mass Transfer: Fundamentals & Applications 6th Edition Yunus A. Çengel, Afshin J. Ghajar McGraw-Hill Education, 2020 Chapter 14 MASS TRANSFER PROPRIETARY AND CONFIDENTIAL This Manual is the proprietary property of McGraw-Hill Education and protected […]
978-0073398198 Chapter 13 Part 8
13-134 13-155 Combustion gases flow inside a tube in a boiler. The rates of heat transfer by convection and radiation and the rate of evaporation of water are to be determined. Assumptions 1 Steady operating conditions exist. 2 The inner […]
978-0073398198 Chapter 13 Part 7
Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. 13-121 13-143 A double-pane window consists of two sheets of glass separated by an air space. The rates of heat transfer […]
978-0073398198 Chapter 13 Part 6
Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. 13-101 13-115 The temperature, pressure, and composition of combustion gases flowing inside long tubes are given. The rate of heat transfer […]
978-0073398198 Chapter 13 Part 5
Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. 13–81 13–93 A radiation shield is placed between two large parallel plates which are maintained at uniform temperatures. The emissivity of […]
978-0073398198 Chapter 13 Part 4
13–61 13-71 Liquid NH3 flows in an insulated tube that is protected by a concentric shield. The surrounding temperature is to be determined so that the NH3 is maintained in the liquid state. Assumptions 1 Steady operating conditions exist. 2 […]
978-0073398198 Chapter 13 Part 3
Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. 13–41 13-52 Two long parallel cylinders are maintained at specified temperatures. The rates of radiation heat transfer between the cylinders and […]
978-0073398198 Chapter 13 Part 2
13–21 Radiation Heat Transfer between Surfaces 13-28C The analysis of radiation exchange between black surfaces is relatively easy because of the absence of reflection. The rate of radiation heat transfer between two surfaces in this case is expressed as )( […]
978-0073398198 Chapter 13 Part 1
13-1 Solutions Manual for Heat and Mass Transfer: Fundamentals & Applications 6th Edition Yunus A. Çengel, Afshin J. Ghajar McGraw-Hill Education, 2020 Chapter 13 RADIATION HEAT TRANSFER PROPRIETARY AND CONFIDENTIAL This Manual is the proprietary property of McGraw-Hill Education and […]
978-0073398198 Chapter 12 Part 5
12–74 and 2/122 21 )( coscos LH H r H + === Then, the rate of radiation energy emitted by A1 in the direction of θ1 through the solid angle ω2-1 is determined by multiplying I1 by the area […]
978-0073398198 Chapter 12 Part 4
12–61 the effective sky temperature is determined from an energy balance on water to be )()( 4 sky 4 surfaceair TTTTh s−=− and K 254.8=⎯→⎯ −=− − sky 4 44282 K) 273()K W/m1067.5(95.0)C0C4)(C W/m18( T Tsky Therefore, […]
978-0073398198 Chapter 12 Part 3
12–41 Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. 12–70 A radiometer is used to monitor the surface temperature of a CPCV pipe. The surface temperature of the CPVC […]
978-0073398198 Chapter 12 Part 2
12–21 (c) The percentage of solar energy at wavelengths longer than visible is −2 f = 1 – 2 f = 1 – 0.550019 = 0.449981 ≈ 45% Discussion Approximately 45% of solar energy is infrared, about 43% visible, […]
978-0073398198 Chapter 12 Part 1
12-1 Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Solutions Manual for Heat and Mass Transfer: Fundamentals & Applications 6th Edition Yunus A. Çengel, Afshin J. Ghajar McGraw-Hill Education, […]
978-0073398198 Chapter 11 Part 9
Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. 11-154 5624.0 CkW/ 778.1 )m 50.0)(CkW/m 0.2( 22 min = == C UA NTU The effectiveness of this parallel-flow […]
978-0073398198 Chapter 11 Part 8
Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. 11-141 11-162 A hydrocarbon stream is heated by a water stream in a 2-shell passes and 4-tube passes heat exchanger. The […]
978-0073398198 Chapter 11 Part 7
11-121 11-140 Water is to be heated by steam in a shell-and-tube process heater. The number of tube passes need to be used is to be determined. Assumptions 1 Steady operating conditions exist. 2 The heat exchanger is well-insulated so […]
978-0073398198 Chapter 11 Part 6
11-101 The NTU of the heat exchanger is 9959.0 W/K22.53 )m 1)(K W/m53( NTU 22 min = == C UAs Using the equation listed in Table 11-4, the heat transfer effectiveness is 0.586= […]
978-0073398198 Chapter 11 Part 5
11–81 The capacity ratio of the 2nd heat exchangers is 32.0 5.3670 6.1174 max min 2=== C C c The effectiveness of 1st heat exchanger is, )10(0189.0 C10)W/K)(120(1761.8 C)10(W/K)5.3670( )( )( int, o o int, ,,min ,, max 1−= − […]
978-0073398198 Chapter 11 Part 4
Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. 11–61 11–78 Ethyl alcohol is heated by water in a 2-shell passes and 8-tube passes heat exchanger. The heat transfer surface […]
978-0073398198 Chapter 11 Part 3
11–41 11-61E Steam is condensed by cooling water in a condenser. The rate of heat transfer, the rate of condensation of steam, and the mass flow rate of cold water are to be determined. Assumptions 1 Steady operating conditions exist. […]
978-0073398198 Chapter 11 Part 2
11–21 )/ln( 21 TT Tlm = where outcouthincinhTTTTTT ,,2,,1 –= –= for parallel-flow heat exchangers and incouthoutcinhTTTTTT ,,2,, –= –= for counter-flow heat exchangers 11-36C The temperature difference between the two fluids decreases from T1 at the […]
978-0073398198 Chapter 11 Part 1
Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. 11-1 Solutions Manual for Heat and Mass Transfer: Fundamentals & Applications 6th Edition Yunus A. Çengel, Afshin J. Ghajar McGraw-Hill Education, […]
978-0073398198 Chapter 10 Part 7
10-116 Noting that the tube is horizontal, the condensation heat transfer coefficient is determined from 1/4 *3 sph sat 1/4 2 3 3 3 3 3 2 () 0.815 () (9.81 m /s )(977.5 kg/m )(977.5 0.60 kg/m )(2435 10 […]
978-0073398198 Chapter 10 Part 6
10-101 Single phase pressure drop for turbulent pipe flow (with superficial Reynolds number of Resl = 8537) is calculated by first calculating the single phase friction factor from either the Moody chart (Fig. A-20) or the Colebrook equation (Eq.8-76) as […]
978-0073398198 Chapter 10 Part 5
10–81 Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. 10–90 Saturated propane vapor condenses on four ASTM A437 B4B stainless steel bolts that are arranged in a vertical tier. […]
978-0073398198 Chapter 10 Part 4
10–61 10–71 Saturated ammonia vapor condenses on a vertical ASTM A240 410S stainless steel plate at 190 kPa. The highest rate of condensation that can be produced by the plate, without cooling the plate below the minimum suitable temperature set […]
978-0073398198 Chapter 10 Part 3
10–41 10-47E Water is boiled at 1 atm pressure and thus at a saturation (or boiling) temperature of Tsat = 212F by a horizontal polished copper heating element whose surface temperature is maintained at Ts = 988F. The rate of […]
978-0073398198 Chapter 10 Part 2
10–21 Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. 10-28E Prob. 10-26E is reconsidered. The effect of surface temperature of the heating element on the boiling heat transfer coefficient, […]
978-0073398198 Chapter 10 Part 1
10-1 Solutions Manual for Heat and Mass Transfer: Fundamentals & Applications 6th Edition Yunus A. Çengel, Afshin J. Ghajar McGraw-Hill Education, 2020 Chapter 10 BOILING AND CONDENSATION PROPRIETARY AND CONFIDENTIAL This Manual is the proprietary property of McGraw-Hill Education and […]
978-0073398198 Chapter 9 Part 8
Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. 9-136 9-154 A spherical vessel is completely submerged in a large water-filled tank. The rates of heat transfer from the vessel […]
978-0073398198 Chapter 9 Part 7
9-121 225 2 10204.2)7286.0( )/sm 10594.1( Pr = =− Ra s 55.20 7286.0 492.0 1 )10204.2(387.0 825.0 Pr 492.0 1 Ra387.0 825.0 2 27/8 16/9 6/17 2 27/8 16/9 6/1 = […]
978-0073398198 Chapter 9 Part 6
9-101 3– 1021.8 skg/m 100.355 R= == e For horizontal cylinder, the Grashof number with Lc = D is 10 2423 31–32 2 3 2 3 10296.1 /sm )8.971/10355.0( )m 15.0(K )40120)(K 10653.0)(m/s 81.9( )/( )()( Gr = […]
978-0073398198 Chapter 9 Part 5
9-81 Natural Convection inside Enclosures 9-89C We would recommend putting the hot fluid into the upper compartment of the container. In this case no convection currents will develop in the enclosure since the lighter (hot) fluid will always be on […]
978-0073398198 Chapter 9 Part 4
9-61 kg/s 02023.0 kJ/kg 425 kJ/s 598.8 === fg h Q m and it will take hours 56.4==== s 996,202 kg/s 02023.0 kg 4107 m m t for the propane tank to empty. 9-66 A cylindrical propane tank […]
978-0073398198 Chapter 9 Part 3
9-41 6 225 2 1000.8 )/sm 10608.1( = Then D Gr L L = =m 0912.0 )10099.1( )m 15.0(3535 4/174/1 Since 4/1 /35 L GrLD is satisfied, we can treat this vertical cylinder as a vertical […]
978-0073398198 Chapter 9 Part 2
9-21 ft 5.0 4 44 ===== L L P Ls s . Then, 6 223 3-12 2 3 10598.8)7256.0( )/sft 101823.0( )ft 5.0)(R 75130)(R 001778.0)(ft/s 2.32( Pr )( = − = − =− cs LTTg Ra […]
978-0073398198 Chapter 9 Part 1
Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Solutions Manual for Heat and Mass Transfer: Fundamentals & Applications 6th Edition Yunus A. Çengel, Afshin J. Ghajar McGraw-Hill Education, 2020 […]
978-0073398198 Chapter 8 Part 8
8-134 8-144E Water flows through a concentric annulus tube with constant inner surface temperature and insulated outer surface, the length of the annulus tube is to be determined. Assumptions 1 Steady operating conditions exist. 2 Properties are constant. 3 Constant […]
978-0073398198 Chapter 8 Part 7
Copyright ©2020 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. 8-121 8-131E Air is flowing through a smooth thin-walled copper tube that is submerged in water; the necessary copper tube length […]
978-0073398198 Chapter 8 Part 6
8-101 8-111E A liquid mixture flowing in a tube with a square-edged inlet is subjected to uniform wall heat flux. The friction coefficient is to be determined. Assumptions Steady operating conditions exist. Properties The properties of the ethylene glycol-distilled water […]
978-0073398198 Chapter 8 Part 5
8-81 Discussion (a) When the hot water exits the pipe at 60°C, the pipe’s outer surface temperature can be reduced to below 45°C by setting the mass flow rate for ṁ > 0.38 kg/s. (b) When the hot water exits […]