Why can’t it be calculated once the Murphree efficiency is defined?
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Aspen 7.0 was used to create a model for the separation of isobutane from C4 hydrocarbons, utilizing the Radfrac module. The convergence was good when no tray efficiency values were specified; however, taking into account the actual tray efficiencies, a Mofield efficiency value was defined. The efficiency for trays 1 through 110 was set at 0.7, while the efficiency for the reboiler tray was set at 0.9. When attempting to run the simulation, an error message appears stating: “INSUFFICIENT STORAGE ALLOCATION FOR DECOMPOSITION. USE **STOR-FACTOR** GREATER THAN 1.50 IN PARAM SENTENCE. TRY INCREMENTS OF 0.5.” What’s causing this issue, and how can it be resolved? I seek help from experts!
This post was last edited by blued simple life on 2022-6-22 at 16:50. It allows you to specify the storage multiplier used to override the internally calculated workspace requirement when using Newton-based methods. Increase this value as necessary for large problems, based on the error messages from RadFrac.