求翻译（HTRI提示）？ the maximum process temperature is outside the correlational range of the automatic tube material data bank. the tube metal properties were calculated at the temperature limit. for tube metal number 7 the temperature limit is 21.11 c. temperature limits are available in the htri xchanger suite online help file. the boiling fluid mixture pseudo-critical pressure is less than the incremental pressure. the program assumed a ratio of incremental to critical pressure of 0.95 for all boiling fluid heat transfer and pressure drop calculations. check the specified process conditions and physical properties. for exchangers with variable baffle spacing, the vibration analysis takes the conservative approach of using the longest baffle space for the analysis at the center. xvib can be used to accurately calculate the natural frequency of the tube. the inlet baffle spacing is less than the recommended minimum spacing. check the design. this condition may lead to problems when the exchanger is built. film boiling has been predicted in at least one increment on the tube side. to confirm, check tubeside profile for increments in film boiling, and note local wall temperatures to assure they are acceptable. the pressure profiles given for the cold fluid do not cover the operating pressure range of the heat exchanger. the vaporization profile inside of the exchanger for this run may not be accurate since heat release and fluid properties have been extrapolated. it is recommended that the maximum and minimum system pressures be used as reference pressures. 查看更多
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