Thread Content
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 the dominant factor). However, the number of tubes that are naturally submerged, as calculated using a balanced pressure drop model, is 0; this means that only 3% of the surface area is submerged by the liquid phase. You can run the simulation again by using an appropriate value for the area fraction submerged, in order to align the input value with the actual amount of surface area that is submerged.
Try using “Baidu Translate”?
Does it mean the area margin is too large? The required heat exchange area does not match the actual area in use; it’s a bit inconsistent
1. The surface area accounts for 18% of the required fraction for cooling the liquid phase (this is an approximate calculation and may be conservative, especially if shell outer wall resistance is taken into account). However, the number of naturally submerged tubes, calculated using the equilibrium pressure drop model, is 0, which means that only 3% of the surface is submerged in the liquid phase. You can run the area fraction flooding process again, so that the input and required potential surface values are converted into the values required by the protocol. 2. The area fraction required for the coolant phase is 18%. (This is an approximate calculation and may be conservative, especially if shell-side resistance is controlled.) However, for the number of natural underwater pipes, the value calculated using the balance pressure drop model is 0, which means that only 3% of the surface is covered by the liquid phase. You can rerun the calculation to determine the area fraction of inundation caused by the input values, in accordance with the inundated surface of the required values. 3. The liquid phase of the required heat dissipation surface area is 18%. (This is an approximate calculation that may be conservative, especially for shellside resistance control.) However, the number of naturally surbmerged tubes, using a balanced pressure drop calculation model, is 0, which means that only 3% of the surface is covered by the liquid phase. You can rerun the test case with the input values where parts of the surface are submerged, to obtain the required inputs and values for the underwater surface as specified in the protocol. I don’t know what it means either; you check it yourself