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
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 10, Problem 10.42P
Consider refrigerant R-134a flowing in a smooth, horizontal, tube of wall thickness 2 mm. The refrigerant is at a saturation temperature of
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Consider a triangular duct 40 m long, with a = b = c = 220 mm as shown in the figure, it is kept at a constant surface temperature of 5°C. Liquid water enters the pipeline at 20°C and 1 atm, at a volumetric flow rate of 7920 L/h. Determine the leaving temperature of the water and the rate of heat transfer to the water b 0 = 60° Te=20.51°C Q=-4528.83
Water is to be heated from 15 C to 65 C as it flows through a 3 cm internal diameter 5 m long tube.
The tube surface is subjected to uniform heat flux. If the mean water velocity is 0.236 mm/s, determine
1. The total heat transferred to water.
2. The inner surface temperature of the pipe at the inlet and the exit.
Take water properties p=992.1 kg/m³, v 0.658 x 10-6 m²/ s
Cp=4179 J/kg.K, Pr-4.32, Nu= 0.023Re08Prº.4
k=0.631 W/m.°C,
Liquid water enters a 10-m-long smooth rectangular tube with a 50 mm and b = 25 mm. The surface
temperature is kept constant, and water enters the tube at 20°C with a mass flow rate of 0.25 kg/s.
Determine the tube surface temperature necessary to heat the water to the desired outlet temperature
of 80°C Find the pumping power.
Te
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...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Determine the magnitude of the resultant force FR = F1 + F2 and its direction, measured counterclockwise from t...
Engineering Mechanics: Statics
What is the location of the maximum temperature in an oxyacetylene flame?
DeGarmo's Materials and Processes in Manufacturing
If cable AD is tightened by a turnbuckle and develops a tension of 1300 lb, determine the tension developed in ...
INTERNATIONAL EDITION---Engineering Mechanics: Statics, 14th edition (SI unit)
A setup lake the one in Fig P3.108 has the R-410A initially at 1000 kPa, 50°C of mass 0.1 kg. The balancing equ...
Fundamentals Of Thermodynamics
In the incompressible flow through the device shown, velocities may be considered uniform over the inlet and ou...
Fox and McDonald's Introduction to Fluid Mechanics
For the tank shown in Fig. 3.21 determine the depth of the oil h if the reading of the bottom pressure gage is ...
Applied Fluid Mechanics (7th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- In a condenser, saturated water vapour flows through cool water pipes, condenses on the surface of the cooling pipes and leaves the condenser as saturated liquid. Cooling water enters the 4-cm-diameter thin copper tubes at an average velocity of 3m/s and at 10°C, and leaves the condenser at 25°C. Saturated vapour at the inlet is at 80°C. What is the mass flow rate of the saturated vapour? Isteam Water 3 m/sarrow_forwardWater (7.7 L/min) is flowing in a tube "D = 3 cm, L= 5 m" and is to be heated from 15°C to 62.1°C by applying a uniform heat flux on the outer surface of the tube by electric resistance heater. What is the power rating of the resistance heater (kW)? If turbulent flow use Dituss- Boetler relation Nu= 0.023 Re0.8 Pr". Properties : p = 992.1 kg/m³ , C, = 4179 J/kg.°C, k = 0.631 W/m°C, Pr = 4.32, v = 0.658E-6 m²/sarrow_forwardWater enters a tube of D=5-cm in diameter at Tmi=21°C with a flowrate of m=0.18- kg/min. The tube is wrapped with a resistance heater pad providing a constant heat flux of q'=2.4-kW/m?. Assuming that the flow is both hydrodynamically and thermally full developed, determine the length of the tube (in meters) required to heat the water to m,0=123 °C. Use the following.properties for the mean temperature of water: p=970.87 kg/m³, p=343×106N-s/m2 , k=0.671 W/m-K, cp=4200 J/kg-K, Pr=2.14.arrow_forward
- Water is pumped through an iron pipe (k=67.2 W/m2 K), 2 meters long as the rate of 1000kg/min. The inner and outer diameters of the tube are 50mm and 60mm respectively. Calculate the rise in temperature of water when the outside of the tube is heated to a temperature of 600°C. The initial temperature of the water is 30°C.arrow_forwardLiquid water enters a 10-m-long smooth rectangular tube with a 50 mm and b = 25 mm. The surface temperature is kept constant, and water enters the tube at 20°C with a mass flow rate of 0.25 kg/s. Determine the tube surface temperature necessary to heat the water to the desired outlet temperature of 80°C Find the pumping power.arrow_forwardGlycerin passes through a pipe of 30 mm inside diameter at a mass flow rate of 700 kg / hr. The wall of the 2.5 m heating section of the pipe is kept constant at 115 ° C. The glycerin inlet temperature is given as 15C. What is the exit temperature of glycerin from the pipe?arrow_forward
- Air at p = 1 atm enters a thin-walled (D = 5-mm diameter) long tube (L = 2 m) at an inlet temperature of Tmi = 100°C. A constant heat flux is applied to the air from the tube surface. The air mass flow rate is m = 135 × 106 kg/s. If the tube surface temperature at the exit is T5,0 = 160°C, determine the heat rate entering the tube, in W. Evaluate properties at T = 400 K. 9 = i Warrow_forwardWater with a mass flow rate of 0.002 kg/s at 18oC flows inside a tube while the flow is already developed hydrodynamically. The inner diameter of the tube is 1.5 cm, and the inner pipe wall temperature is maintained uniformly at 125oC. Calculate the required tube length to increase the water temperature to 82oC.arrow_forwardWater (5.2 L/min) is flowing in a tube "D= 3 cm, L= 5 m" and is to be heated from 15°C to 59.9°C by applying a uniform heat flux on the outer surface of the tube by electric resistance heater. What is the power rating of the resistance heater (kW)? 0.8 II If turbulent flow use Dituss-Boetler relation Nu= 0.023 Re Pr. 3 Properties : p = 992.1 kg/m , C 4179 J/kg. °C, k=0.631 W/m°C, Pr= 4.32, v= 0.658E-6 m /s Select one:arrow_forward
- In many manufacturing plants, individuals areoften working around high-temperature surfaces.Exposed hot surfaces that can cause thermal burns on humanskin are considered hazards in the workplace. Metallic surfacesabove 70° C can instantly damage skin that touches them.Consider an AISI 1010 carbon steel strip (? = 7832 kg/ m 3 )2 mm thick and 3 cm wide that is conveyed into a chamber tobe cooled at a constant speed of 1 m/s. The steel strip entersthe cooling chamber at 597° C. Determine the rate at whichheat needs to be removed so that the steel strip exits the chamberat 47° C . Discuss how the conveyance speed can affect therequired rate of heat removal.arrow_forwardWater (cp=4.182 kJ/kg.K, k=0.6405 W/m.K, Pr=3.57, ν=0.5537x10-6 m2/s, ρ=998 kg/m3) flows through a tube (D=0.5 cm) with an average velocity of 0.2 m/s. The average temperatures of the water at the inlet and outlet cross-sections are 26,03 oC and 86,92 oC, respectively. The uniform heat flux of 0,82 W/cm2 is subjected to the surface of the tube for heating process. Determine the tube length [m].arrow_forwardAir at p = 1 atm enters a thin-walled (D = 5-mm diameter) long tube (L = 2 m) at an inlet temperature of Tm,i = 100°C. A constant heat flux is applied to the air from the tube surface. The air mass flow rate is m = 125 × 10-6 kg/s. If the tube surface temperature at the exit is T, = 160°C, determine the heat rate entering the tube, in W. Evaluate properties at T = 400 K. q= Mi Warrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Heat Transfer (Activate Learning wi...Mechanical EngineeringISBN:9781305387102Author:Kreith, Frank; Manglik, Raj M.Publisher:Cengage Learning
Principles of Heat Transfer (Activate Learning wi...
Mechanical Engineering
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Cengage Learning
Heat Transfer – Conduction, Convection and Radiation; Author: NG Science;https://www.youtube.com/watch?v=Me60Ti0E_rY;License: Standard youtube license