1、mtKFQ2211tWtWQ沸腾冷凝t1t2冷凝吸热t1t2t2”t2t1t1”沸腾放热t1t2”放热吸热t2t1”t1t1”吸热放热t2”t2t1t1”吸热过热t2”t2过冷冷凝t1t1”放热过热t2”t2吸热沸腾t1t1”吸热t2”t2部分可凝流部分可凝流体的冷凝体的冷凝minmaxminmaxlnlnttttttttttlmmt2t1t1”沸腾放热冷凝吸热t1t2t2”t1t1”吸热过热t2”t2过冷冷凝冷流体的升温热流体的降温两流体的进口温差冷流体的升温设辅助参数2211212222.21212121.)1()1(ln)()1()()(ln)()(ttttRttttpPRPttRttt
2、tttttttclmclmminWKFNTU maxminWWRc)11(21WWKFett)11(212121WWKFettttcRNTURec11)1(211122WWtttt0cRcRNTURec11)1(NTUe1212NTUe1cR)11(21WWKFett)11(212121WWKFetttt)1()1()1()1(111ccccRNTUcRNTURNTUcRNTUeReeRe211122WWtttt0cRNTUe1?1cR)1()1(11ccRNTUcRNTUeRe)11(212121WWKFettttNTUNTU11211122cRWWtttt21WKFWKFNTUmtKFttWttW)()(2221112121tttttm2221222122tttttttttt