- Q6 In Forced Convection Experiment Pinned And Finned Surfaces The Readings Are Recorded As Shown In The Table Where 1 (84.81 KiB) Viewed 14 times
Q6: In forced convection experiment (pinned and finned surfaces), the readings are recorded as shown in the table, where TH is the temperature of the heater surface (the base of fins and pins) and TA is the temperature of flowing air. The heat rate is set to be constant at 35 W, and TA = 24°C. V, (m/s) 0 0.5 1 1.5 2 Finned Plate 64.1 52.5 44.2 TH, (°C) 38.4 38.5 Pinned Plate 68.2 56.7 48.5 41.2 38.1 1- Sketch the relation between V and (TH-TA). 2-Depend on your sketch, evaluate TH if a velocity of 2.5 m/s is applied in the two cases. 3- In which method the cooling rate is higher? 4- In order to achieve TH = 50°C, which method and velocity do you prefer? 5- Mention two conclusion -at least- from this Experiment.