某燃气轮机装置,如图2-16所示。 已知在各截面处的参数是: 在截面1处:p 1 =0.1MPa,t 1 =28℃,v 1 =0.88m 3 /kg; 在截面2处:p 2 =0.6MPa,t 2 =82℃,v 2 =0.173m 3 /kg; 在截面3处:p 3 =p 2 ,t 3 =600℃,v 3 =0.427m 3 /kg; 在截面3'处:p 3' =p 1 ,t 3' =370℃,v 3' =1.88m 3 /kg。且△u 12 =u 2 -u 1 =40k/kg,△u 23 =375kJ/kg,△u 33' =-167kJ/kg。c f1 =c f2 =c f3 =c f4 =0。求: