换热器问题，工资为CO2
CO2换热问题，热物流进口 196.1℃压力7.7MPa流量244.8t/h（焓值636.17kg/kj）；冷物流进口 62℃压力20MPa 流量240t/h（焓值329.15kg/kj）； 冷物流出口7.6MPa 163℃ （焓值598.82kg/kj） ，可是模拟出来一直出现错误，这显示是不是这种是不能实现的？希望好心马友看看，调调。Block: B4 Model: HEATX
**ERROR
TEMPERATURE CROSSOVER DETECTED
RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC
->Generating block results ...
Block: B4 Model: HEATX
**ERROR WHILE GENERATING RESULTS FOR UNIT OPERATIONS BLOCK: "B4" (MODEL:
"HEATX")
TEMPERATURE CROSSOVER DETECTED
RE-CALCULATING WITH MINIMUM APPROACH TEMP. SPEC
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