7th Edition

ISBN: 9780470917855

Author: Bergman, Theodore L./

Publisher: John Wiley & Sons Inc

Concept explainers

Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.

Heat Exchanger

The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.

Videos

Textbook Question

Chapter 8, Problem 8.57P

Refrigerant- 134a is being transported a 0.1 kg/s through a Teflon tube of inside diameter D 0 = 28 mm and outside diameter D = 28 mm. while atmospheric air at V = 25 m/s and 300 K is in cross flow over the tube. What is the heat transfer per unit length of tube to Refrigerant- 134a at 240 K?

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 8, Problem 8.56P

Chapter 8, Problem 8.58P

Students have asked these similar questions

Air 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 = 110 x 106 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 = 400K.

Air at 2 bar and 40°C is heated as it flows through tube of diameter 30mm at a velocity of 10 m/s. Calculate the heat transfer per unit length of the tube when wall temperature is maintained at 100°C all along length of the tube. How much would be the bulk temperature increase over one metre length of the tube ? Use the following relation : Nu = 0.023 Re08 Pr04 u = 20.6 x 106 N- s/m?: Pr = 0.694 c, 1.009 kJ/kg°C; k = 0.0297 kg/m°C;

Air at 20°C enters a heated circular tube with a diameter of 50 mm and a length of 3 m. The mass flow rate is 0.005 kg/s and the flow is fully developed with h = 40 W/m2. 20°C 0.005 kg/s D q" If the tube is heated by uniform surface heat flux of 1000 W/m?, calculate the surface temperature at the outlet (Ta) in C If the surface heat flux varies linearly in the flow direction as 500x W/m2, (x is in meters and equals to 0 at the inlet and equals to 3 at the outlet) calculate the mean temperature at the outlet (Tm.o) in °C = 128 138 145 152 167 116

Chapter 8 Solutions

Fundamentals of Heat and Mass Transfer

Ch. 8 - Fully developed conditions are known to exist for...Ch. 8 - What is the pressure drop associated with water at...Ch. 8 - Water at 27C flows with a mean velocity of 1 m/s...Ch. 8 - An engine oil cooler consists of a bundle of 25...Ch. 8 - For fully developed laminar flow through a...Ch. 8 - Consider pressurized water, engine oil (unused),...Ch. 8 - Velocity and temperature profiles for laminar flow...Ch. 8 - At a particular axial station, velocity and...Ch. 8 - In Chapter 1, it was stated that for...Ch. 8 - When viscous dissipation is included. Equation...

Additional Engineering Textbook Solutions

Find more solutions based on key concepts

What are the functions of the fluxing constituents and slag coating that forms over a shielded metal arc weld?

Degarmo's Materials And Processes In Manufacturing

In raising the pole from the position shown, the tension T in the cable must supply a moment about O of 72kNm. ...

Engineering Mechanics: Statics

Replace the loading system acting on the post by an equivalent resultant force and couple moment at point A.

INTERNATIONAL EDITION---Engineering Mechanics: Statics, 14th edition (SI unit)

What parts are included in the vehicle chassis?

Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)

Determine the velocity of block A if end B of the rope is pulled down with a speed of 6 m/s.

Engineering Mechanics: Dynamics (14th Edition)

Determine the slope of end A of the cantilevered beam. E = 200 GPa and I = 65.0(106) mm4.

Mechanics of Materials

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.