TEG program problems

In reference to "PC program estimates TEG circulation rate, number of trays" (OGJ, June 21, 1999, p. 36): Why would someone write a program for estimating circulation rate when this can be easily and quickly achieved on spreadsheets such as Microsoft Excel or any other spreadsheet software?In addition, it appears from the article that, for a standard tray efficiency of 25%, the program will always estimate either 4 or 6 or 8 trays only. Also, if we look at the data in the example (without calculating), we would say that the number of trays should be 8, not 4 as indicated in the results.In the nomenclature, density is mentioned in units of kg/cu m. But in the article, it is confusingly in ...

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