15) An aluminium block is cast with an array of pin fins protruding on the base as shown in figure, subjected to room air at 20°C. The convection coefficient between the pins and the surrounding air may be assumed to be h = 13.2 W/m² °C. The pin diameters are 2 mm and their length 25 mm. The base of the aluminium block may be assumed constant at 70°C. Calculate the total heat lost by an array of 15 by 15, that is, 225 fins.

15) An aluminium block is cast with an array of pin fins protruding on the base as shown in figure, subjected to room air at 20°C. The convection coefficient between the pins and the surrounding air may be assumed to be h = 13.2 W/m² °C. The pin diameters are 2 mm and their length 25 mm. The base of the aluminium block may be assumed constant at 70°C. Calculate the total heat lost by an array of 15 by 15, that is, 225 fins.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Given the views below, sketch the isometric figure . You may use @ut0c@d to draw the figure.
Given the top and front view create a section view.
Pleaseeee
y is the angle an absolute value?
5. According to the given 2 views, try to make the front full sectional view (7') and the left-side half sectional view A-A (8'). (only 2 required views) A-A | A
7. Make Orthographic (Front/Top/Right views) Free hand sketch of the objects shown in the pictorials. ZA A 4
show all steps in detail, units and formulas please.
Sketch the orthographic projection of the given isometric sketch Front view Top view Side view No hand drawings Use CATIA V5 software to
The hollow tube rotates with an 01 = 5 rad/s and 2= 6 rad/s. The sphere A is moving along the shaft (away from the origin) with an = 5 m/s and = 4 m/s². Find the i, j, and k components of the velocity and acceleration of A at this instant if 9 = 35 degrees. Assume r = 6 m. VA = aA = î km/s (1 decimal) k m/s² (no decimals) j+ Ĵ+
Below are the front and side views of the objects. Use these views to create the top view.
I need a free hand sketching with pencil please on the top view and the side view of this drawing FRONT VIEW
Hello. Can you draw the OFF SET SECTION VIEW and the OBLIQUE SECTION VIEW of this figure? I don't need a very very good drawing. A sketch would be okay. Just indicate the proper section lines, and center lines. Thank you!