... 22 , and 24 hours, T is obtained as 86.5, 97. 7, 1 02. 0, 101 .7, 92. 5, 62. 3, 55.0, 67. 5, and 80.0nC, respectively. Obtain a best t assuming a variation of the form Asin (2 T /24 ) B cos (2 T /24 ) ... may be used to develop a trade-off curve in optimization. 470 Design and Optimization of Thermal Systems 7. 12. For the thermal systems considered in Example 5.5 and Example 5.6, suggest appropriate ... d/D and x 2 V 2 /V1. Then, the objective function may be written asUxxAFxxFxxA(,)=+ (,)+ (,)= 12 1 12 2 12 +++ 21 Bx x Cx xnm 12 (7. 13)where F1 and F 2 represent the costs for the die and...