10A.5. Free convection velocity.(a) Verify the expression for the average velocity in the upward-moving stream in Eq. 10.9-16.(b) Evaluate 3 for the conditions given below.(c) What is the average velocity in the upward-moving stream in the system described in Fig.10.9-1 for air flowing under these conditions?PressureTemperature of the heated wallTemperature of the cooled wallSpacing between the wallsAnswer: 2.3 cm/sT3=0°F.Wall1 atm100°C20°C0.6 cm-T₂ = 61°FSurface temperatures-T₁ = 69°F of plastic panelPlastic panel hasthermal conductivityk = 0.075Btu/hr. ft. °F(average value betweenT₁ and T₂)-0.502"Fig. 10A.6. Determination of the thermal resistance ofa wall.Problems 321

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T3=0°F. Wall -T₂ = 61°F -T₁ = 69°F Surface temperatures of plastic panel - Plastic panel has thermal conductivity k = 0.075 Btu/hr.ft. F (average value between T₁ and T₂) 0.502" Fig. 10A.6. Determination of the thermal resistance of a wall.

T3=0°F. Wall -T₂ = 61°F -T₁ = 69°F Surface temperatures of plastic panel - Plastic panel has thermal conductivity k = 0.075 Btu/hr.ft. F (average value between T₁ and T₂) 0.502" Fig. 10A.6. Determination of the thermal resistance of a wall.

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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