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Engineering, 15.07.2021 16:50 aylineorozco836

Two long concentric cylinders exchange heat by radiation. The inner cylinder having a diameter of 10 cm has T1 = 1000 K and ε1=0.65 while the outer cylinder having a diameter of 20 cm has T2 = 500 K and ε2=0.40. Calculate the net heat transfer between the two cylinders per unit length

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