Exercicio- 2
2
K T(int)ºC Área (m²) ΔT Temp q(100) q(125) 0.75 25 20 -40 -15 2666.667 3333.333 1 -35 -10 2333.333 2916.667 1.25 -30 -5 2000 2500 -20 5 1333.333 1666.667 -15 10 1000 1250 -10 15 500 833.3333 L -5 20 333.3333 416.6667 0 25 0 0 5 30 -333.333 -416.667 L= 0.3 10 35 -666.667 -833.333 13 38 -866.667 -1083.33 q=-K*A* (T(ext)-T(int)) -15 -10 -5 5 10 15 20 25 30 35 38 -2000 -1000 0 1000 2000 3000 4000 q(100) q(125) q(75)
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transferência de calor
Transcript of Exercicio- 2
K T(int)ºC Área (m²) ΔT Temp q(100) q(125) q(75)0.75 25 20 -40 -15 2666.667 3333.333 2000
1 -35 -10 2333.333 2916.667 17501.25 -30 -5 2000 2500 1500
-20 5 1333.333 1666.667 1000-15 10 1000 1250 750-10 15 500 833.3333 500
L -5 20 333.3333 416.6667 2500 25 0 0 05 30 -333.3333 -416.6667 -250
L= 0.3 10 35 -666.6667 -833.3333 -50013 38 -866.6667 -1083.333 -650
q=-K*A*(T(ext)-T(int))
-15 -10 -5 5 10 15 20 25 30 35 38-2000
-1000
0
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2000
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q(100)q(125)q(75)