A 20 cm thick slab of aluminums (k = 230 W/mK) is placed in contact with a 15 cmthick stainless-steel plate (k= 15 W/mK). Due to roughness, 40 percent of the area is in directcontact and the gap (0.0002 m) is filled with air (k = 0.032 W/mK). The difference intemperature between the two outside surfaces of the plate is 200°C Estimate (i) the heat flowrate, (ii) the contact resistance, and (iii) the drop in temperature at the interface.AlAir0603Steel

Given Data Thickness of slab is : L1=20 cm=0.2 m Thermal conductivity of aluminum is : kal=230…

A 20 cm thick slab of aluminums (k = 230 W/mK) is placed in contact with a 15 thick stainless-steel plate (k = 15 W/mK). Due to roughness, 40 percent of the area is in dir contact and the gap (0.0002 m) is filled with air (k = 0.032 W/mK). The difference temperature between the two outside surfaces of the plate is 200°C Estimate (i) the heat f rate, (ii) the contact resistance, and (iii) the drop in temperature at the interface. Al Air 06 1m

A 20 cm thick slab of aluminums (k = 230 W/mK) is placed in contact with a 15 thick stainless-steel plate (k = 15 W/mK). Due to roughness, 40 percent of the area is in dir contact and the gap (0.0002 m) is filled with air (k = 0.032 W/mK). The difference temperature between the two outside surfaces of the plate is 200°C Estimate (i) the heat f rate, (ii) the contact resistance, and (iii) the drop in temperature at the interface. Al Air 06 1m

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

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Question

A 20 cm thick slab of aluminums (k = 230 W/mK) is placed in contact with a 15 cm
thick stainless-steel plate (k= 15 W/mK). Due to roughness, 40 percent of the area is in direct
contact and the gap (0.0002 m) is filled with air (k = 0.032 W/mK). The difference in
temperature between the two outside surfaces of the plate is 200°C Estimate (i) the heat flow
rate, (ii) the contact resistance, and (iii) the drop in temperature at the interface.
Al
Air
06
03
Steel

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