Fundamentals of Heat and Mass Transfer
7th Edition
ISBN: 9780470501979
Author: Frank P. Incropera, David P. DeWitt, Theodore L. Bergman, Adrienne S. Lavine
Publisher: Wiley, John & Sons, Incorporated
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Chapter 11, Problem 11.68P
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FROM BOOK: ENGINEERING THERMOFLUIDS, M. MASSOUD
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3. A 2-shell 4 tube pass HE will be used to cool a hot fluid from 400oC to 200oC using a cooling water available at 80oC and heated at 180oC. Calculate the total heat transferred if the tubes are 50mm med wt. steel, 5 m long per pass. Assume hi = 200W/m2K and ho = 4500W/m2K
Chapter 11 Solutions
Fundamentals of Heat and Mass Transfer
Ch. 11 - In a fire-tube boiler, hot products of combustion...Ch. 11 - A shell-and-tube heat exchanger is to heat an...Ch. 11 - A steel tube (k=50W/mK) of inner and outer...Ch. 11 - A heat recovery device involves transferring...Ch. 11 - A novel design for a condenser consists of a tube...Ch. 11 - The condenser of a steam power plant...Ch. 11 - Thin-walled aluminum tubes of diameter D = 10mmare...Ch. 11 - A tinned-tube, cross-how heat exchanger is to use...Ch. 11 - Water at a rate of 45,500kg/h is heated from 80...Ch. 11 - A novel heat exchanger concept consists of a...
Ch. 11 - Prob. 11.12PCh. 11 - A process fluid having a specific heat of...Ch. 11 - A shell-and-tube exchanger (two shells, four tube...Ch. 11 - Consider the heat exchanger of Problem 11.14....Ch. 11 - The hot and cold inlet temperatures to a...Ch. 11 - A concentric tube heat exchanger of length L = 2 m...Ch. 11 - A counterflow, concentric tube heat exchanger is...Ch. 11 - Consider a concentric tube heat exchanger with an...Ch. 11 - A shell-and-tube heat exchanger must be designed...Ch. 11 - A concentric tube heat exchanger for cooling...Ch. 11 - A counterflow, concentric tube heat exchanger used...Ch. 11 - An automobile radiator may be viewed as a...Ch. 11 - Hot air for a large-scale drying operation is to...Ch. 11 - In a dairy operation, milk at a flow rate of 250...Ch. 11 - The compartment heater of an automobile...Ch. 11 - A counterflow, twin-tube heat exchanger is made...Ch. 11 - Consider a coupled shell-in-tube heat exchange...Ch. 11 - For health reasons, public spaces require the...Ch. 11 - A shell-and-tube heat exchanger (1 shell pass, 2...Ch. 11 - Saturated water vapor leaves a steam turbine at a...Ch. 11 - The human brain is especially sensitive to...Ch. 11 - Prob. 11.47PCh. 11 - A plate-tin heat exchanger is used to condense a...Ch. 11 - In a supercomputer, signal propagation delays...Ch. 11 - Untapped geothermal sites in the United States...Ch. 11 - A shell-and-tube heat exchanger consists of 135...Ch. 11 - An ocean thermal energy conversion system is...Ch. 11 - Prob. 11.55PCh. 11 - Prob. 11.56PCh. 11 - The chief engineer at a university that is...Ch. 11 - A shell-and-tube heat exchanger with one shell...Ch. 11 - Prob. 11.59PCh. 11 - Prob. 11.60PCh. 11 - Prob. 11.61PCh. 11 - Prob. 11.62PCh. 11 - A recuperator is a heat exchanger that heats air...Ch. 11 - Prob. 11.64PCh. 11 - Prob. 11.65PCh. 11 - A cross-flow heat exchanger consists of a bundle...Ch. 11 - Exhaust gas from a furnace is used to preheat the...Ch. 11 - Prob. 11.68PCh. 11 - A liquefied natural gas (LNG) regasification...Ch. 11 - Prob. 11.70PCh. 11 - A shell-and-tube heat exchanger consisting of...Ch. 11 - Prob. 11.73PCh. 11 - The power needed to overcome wind and friction...Ch. 11 - Prob. 11.75PCh. 11 - Consider a Rankine cycle with saturated steam...Ch. 11 - Consider the Rankine cycle of Problem 11.77,...Ch. 11 - Prob. 11.79PCh. 11 - Prob. 11.80PCh. 11 - Hot exhaust gases are used in a...Ch. 11 - Prob. 11.84PCh. 11 - Prob. 11.90PCh. 11 - Prob. 11S.1PCh. 11 - Prob. 11S.2PCh. 11 - Prob. 11S.3PCh. 11 - Solve Problem 11.15 using the LMTD method.Ch. 11 - Prob. 11S.5PCh. 11 - Prob. 11S.6PCh. 11 - Prob. 11S.8PCh. 11 - Prob. 11S.10PCh. 11 - Prob. 11S.11PCh. 11 - A cooling coil consists of a bank of aluminum...Ch. 11 - Prob. 11S.17P
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- Hi, kindly help me with this problem and show the complete solution. Please explain it also thank you so mucharrow_forwardI need the answer as soon as possiblearrow_forwardThe thermal conductivity of aluminum is higher than that of concrete material (one of most popular building materials). Select one: O True O False An example of convective heat transfer is freezing of the ground during the winter. Select one: O True O False Fouling on heat exchanger tubes has no effect on heat exchanger's performances. Select one: O True O False For good winter jackets, they should be made of light-weight materials, filled with air, that have very low conductivity. Select one: O True O Falsearrow_forward
- 3...arrow_forwardHeat transfer problem.In a counter flow heat exchanger, water, flow rate 0.05kg/s, enters at 400K and leaves at 330k. The water is cooled by air that enters at 0.75 kg/s and 300K. The overall heat coefficient is 200 W/m2K. Assume air outlet is 320k only for evaluating the properties of the air. You can use saturated liquid water properties (a).what is the air outlet temperature.(b)log mean temperature difference (c)required heat transfer surface area.arrow_forwardplease show full and detailed solution. i need as soon as possible.arrow_forward
- Answer 11.4!!arrow_forward3.1 Show complete solution and illustration.arrow_forwardExample 29.18 In an oil cooler of the counter flow type 5000kg.per of oil of specific heat 0.6 are cooled from 40°C to 24°C by means of 6000 kg/hr of water which enter at 15°C. Find the cooling surface required if the overall coefficient of heat transmission is 3000 kcal/ in² hour °C?arrow_forward
- [wik problem-Two: A Cylindrical stainless steel inget (keys) 15 cm in diameter and 40 cm long passes through a treatment ference that is (6m) in length. The temperature of the furance gu is (1300°C). The inital ingot temperature is (100°C). The Combined het radinat and Convective heat transfercelli- -cient is (100 tk). Calculate the maximum speed with which the ingot should pass through the furnace if it must attain a temperature of (850 °C). Take (α=0.46×105 (Aust Velocitga 1.985 mm/3) -5arrow_forwardDue higher viscosity, the heat-transfer coefficient of moving liquid hydrocarbons is generally higher than that of moving water Select one: O True O False The proper strategy to enhance heat transfer of a heat exchanger is trying to increase the heat transfer coefficient of the side with the lower heat resistant. Select one: O True O False For the universal 3-D heat transfer equation (see topic 7 in URCourses notes), we have to simplify by eliminating terms that are zero or near zero first, and then we can only use numerical methods (such as finite difference) to solve those problems. Select one: O True O Falsearrow_forwardExample 4.13. A thermocouple junction is in the form of 8 mm diameter sphere. Properties of material are: 40 W/M2°C. = 8000 kg/m³; k = 40 W/m°C and h This junction is initially at 40°C and inserted in a stream of hot air at 300°C. Find: %3D 420 J/kg°C; p C = (i) Time constant of the thermocouple; (ii) The thermocouple is taken out from the hot air after 10 seconds and kept in still air at 30°C. Assuming the heat transfer coefficient in air 10 W/M²°C, find the temperature attained by the junction 20 seconds after removing from hot air. (P.U.)arrow_forward
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