Project A 15-m long; 10-cm diameter cylindrical shaft at temperature of 2400°C is allowed to cool slowly to TºC in an environment with convection heat transfer coefficient (h∞). The shaft is made from material of properties given in table 2 below. It is required to investigate the effect of the cooling time on the shaft temperature and the amount of heat transfer: Let the time vary from 1 second to 10000 second (~ 3hours). 1. Calculate the Bi 2. Determine handwriting the shaft temperature after 25 min. 3. Plot on separate graphs, the shaft temperature and the amount of heat transfer (each) versus the time. 4. Write a brief comment describing each graph. Notes: Use any software (Excel for instance) and submit a copy of the spreadsheet with your final solution. # Student Name ID Table 1 Ambient Data Outside convection heat transfer coefficient h (W/m².K) Atmospheric temperature T。。 (°C) 8 Haleemah 202000018 66 16 Table 2 Properties of the shaft # Student Name ID Density p (kg/m³) Heat Capacity Cp (J/kg .K) Thermal conductivity k (W/m.K) 8 Haleemah 202000018 8900 444 585