求换热器设计的一段话翻译? the required fraction of the surface area for cooling the liquid phase is 18%。(This is an approximate calculation that may be conservative especially if the shellside resistance is controlling).However the number of naturally surbmerged tubes,caculated using a balanced pressure drop model,is 0,which means that only 3%of the surface is submerged by the liquid phase .You can re-run the case with an input value of the Area Fraction Submerged to bring the input and required values of the submerged surface into agreement.查看更多3个回答 . 1人已关注