How is the amount of cooling water required determined when calculating heat exchangers?
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As the title suggests, is it to calculate it using formulas by oneself? How to calculate it when there is a phase change at the hot end? When importing properties from PROII to HTRI, what should be the temperature and pressure ranges? Thank you in advance:D This post was last edited by yanwenzh1204 on 2009-2-20 17:04.]
Temperature and pressure are utility conditions, as specified in the project. The typical temperature is 30~32°C at the inlet and 40~42°C at the outlet℃ ； Pressure at the inlet is 3.5~4.5 MPa, and at the outlet it is 2.5~3.5 MPa.
For example, when I want to import the properties of the heat stream in the condenser from PROII to HTRI, don’t I need to define the range for temperature and pressure? Shouldn’t it be determined based on the results of the simulation? Are the regulations mentioned upstairs those for the cooling water side?
Why didn’t anyone tell me that the amount of cooling water required doesn’t need to be specified? The more experienced ones don’t help newcomers at all: (One has to figure things out on their own slowly)
Q = CM * Delta T. The water volume used is M = Q / C / Delta T. Q represents the heat load, C is the specific heat, and Delta T is the temperature change of the condensate water; it is usually 8 to 10 degrees. M then represents the flow rate