1. To estimate the heat loss from module back surfaces at each power setting, first calculate q'loss set-predicted based on free convection results. Here, qset is the power setting, and predicted is calculated from a semi-empirical correlation based on measured temperatures. Then, for each forced convection measurement, estimate the heat loss as gloss (q'loss/AT")AT, where AT-T, -To (take T4 as Tx, see p. 10; discuss why) and AT" is the value under free convection. The actual heat transfer to the air flow after calibration is, therefore, given as calibrated-set-gloss. [Note: and AT" are free convection data.] This experiment is intended for analyzing free and forced convections for external flow over a vertical plate. Discuss how the setup can be improved to better simulate the external flow. Prelab Assignment (due before the class) Below is the data for qset =35 W. For the prelab assignment, perform a complete data analysis following the steps in Lab2_Convection_Calculation Procedure.pdf. uco (m/s) T (F) 0.0 (free) 0.6 1.0 1.3 81 78 77 76 T, (F) 298 271 246 221 III. Experimental Apparatus A schematic of Hampden H-6882 Convection Heat Transfer Demonstration unit is shown in Figure 1, along with test samples. Major components with their specifications are as follows: (1) Flat plate heating module (height 0.127 m and width 0.1524 m). Calculation details: Free convection Calculations: g(T-T_) Gr = Ra = Gr.Pr= Nu=0.68+ 0.67 Ra 1/4 9/16 749 0.492 Pr h L Nu k = P.L k L predicted = h.A.AT Loss-set-predicted Calculation details: Forced Convection Calculations: Re u_L V Nu = 0.664 Re Pr/3 h_L Nup.L Nu ..k "P.L k L Calculation details Calculations: 9 predicted Loss = =h.A.AT LAT Loss AT' I calibrated-set-9lass h measured Nu m Icalibrated = = h_L k .