Analysis of counter flow heat transfer For counter flow △T-△T △T=T2-T △ out hin Im hn△T/△T out △T=T out h out Temperature profile for counter flow △T Th Fig 11.8 4T idg △T △T ImCF> AT Im pF Heat Transfer Su Yongkang School of Mechanical EngineeringHeat Transfer Su Yongkang School of Mechanical Engineering # 15 Analysis of counter flow heat transfer • For counter flow: • Temperature profile for counter flow: dq Ti To dTh dTc T In Out Fig 11.8 i n out i n out T T T T    −   = ln / Tlm out h out c in in h in c out T T T T T T , , , ,  = −  = − Tlm,CF  Tlm,P F