Q4: A heat transfer experiment in which convection and radiation phenomenon took place was carried out...

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Q4: A heat transfer experiment in which convection and radiation phenomenon took place was carried out with the experiment system which specifications given below. The data obtained from the experimental system was given in a table. Determine; a) The overall heat transfer coefficients hc, hr, b) The total heat transfer, Qt. Experiments System specifications: *Air using as a working fluid. *Diamenter of cylindrical duct is 0.012 m. *Heated length is 0.15 m. Experimental Datas: G4 Sample 1 2 3 4 5 6 7 8 V Volts 51 80 75 72 70 75 100 140 I Amps 0.090 0.125 0.120 0.110 0.127 0.180 0.225 Ua m/s EOONNAS00 2.10 2.90 4.75 5.50 T1 C 22.0 21.7 20.5 20.3 20.0 20.4 22.4 21.7 T2 100.0 180.1 88.3 77.9 67.2 55.4 215.3 317.6 Q4: A heat transfer experiment in which convection and radiation phenomenon took place was carried out with the experiment system which specifications given below. The data obtained from the experimental system was given in a table. Determine; a) The overall heat transfer coefficients hc, hr, b) The total heat transfer, Qt. Experiments System specifications: *Air using as a working fluid. *Diamenter of cylindrical duct is 0.012 m. *Heated length is 0.15 m. Experimental Datas: G4 Sample 1 2 3 4 5 6 7 8 V Volts 51 80 75 72 70 75 100 140 I Amps 0.090 0.125 0.120 0.110 0.127 0.180 0.225 Ua m/s EOONNAS00 2.10 2.90 4.75 5.50 T1 C 22.0 21.7 20.5 20.3 20.0 20.4 22.4 21.7 T2 100.0 180.1 88.3 77.9 67.2 55.4 215.3 317.6

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