A 40-mm-Iong, 2-mm-diameter pin fin is fabricated of an aluminum alloy (k = 140 W/m2 ú K). (a) Determine the fin heat transfer rate for Th = 50øC, T8. = 25øC, h = 1000 W/m2 ú K. and an adiabatic tip condition. (b) An engineer suggests that by holding the fin tip at a low temperature, the fin heat transfer rate can be increased. For T(x = L) = OøC, determine the new fin heat transfer rate. Other conditions are as in part (a). (c) Plot the temperature distribution, T(x), over the range 0 < x=>< l= for= the= adiabatic= tip= case= and= the= prescribed= tip= temperature= case.= also= show= the= ambient= temperature= in= your= graph.= discuss= relevant= features= of= the= temperature=> (d) Plot the fin heat transfer rate over the range 0 S h < 1000= w/m2= ú= k= for= the= adiabatic= tip= case= and= the= prescribed= tip= temperature= case.= for= the= prescribed= tip= temperature= case,= what= would= the= calculated= fin= heat= transfer= rate= be= if= equation= 3.73= were= used= to= determine= qf= rather= than= equation= 3.71?=>
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