EBK NUMERICAL METHODS FOR ENGINEERS
7th Edition
ISBN: 9780100254145
Author: Chapra
Publisher: YUZU
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Textbook Question
Chapter 31, Problem 2P
Repeat Example 31.2, but for boundary conditions of
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Ex.2
A 120mm diameter apple p = 990kg/m³, c, = 4170J/kg° C, k = 0.58w/m°C),
%3D
approximately spherical in shape is taken from a 25°C environment and placed in a
refrigerator where temperature is 6°C and the average convective heat transfer
coefficient over the apple surface is 12.8w/m²°C. Determine the temperature at the
center of the apple after a period of 2 hours.
The Air on 1 ATM on
T.
250 K
And the free flow rate is 30 meters
It flows across a diameter cylinder 2,5 cm
The cylinder 'surface is guarded on
temperature 350 k, count :
*) The rate of heat transfer is 1 meter long
Cylinder
>
C: water flows at 50 °C inside a 2.5 cm diameter tube such that h-3500 W/m2. °C. The tube has a
wall thickness of 0.8 mm with a thermal conductivity of 16 W/m.°C. The outside of the tube loses
heat by convection with ho-7.6 W/m².°C. If the heat loss to the surrounding per unit length is 19 W.
Calculate the surrounding air temperature.
Chapter 31 Solutions
EBK NUMERICAL METHODS FOR ENGINEERS
Ch. 31 - 31.1 Repeat Example 31.1, but for and a uniform...Ch. 31 - Repeat Example 31.2, but for boundary conditions...Ch. 31 - Apply the results of Prob. 31.2 to compute the...Ch. 31 - Use Galerkins method to develop an element...Ch. 31 - Prob. 5PCh. 31 - 31.6 Develop a user-friendly program to model the...Ch. 31 - 31.7 Use Excel to perform the same computation as...Ch. 31 - Use MATLAB or Mathcad to develop a contour plot...Ch. 31 - 31.9 Use Excel to model the temperature...Ch. 31 - 31.10 Use MATLAB or Mathcad to develop a contour...
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