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Greetings, I am an engineering student and I am carrying out a thesis project where I plan to implement a flash vapor recovery system. I need to size a flash steam tank whose water inlet is 10000 kg/h (ca. 22000 lb/h) at 30 psig and the flashing inside the tank occurs at 5 psig. According to this table, the flashing percentage should be 5%, being 500 kg/h in total
After this table, I moved on to size the tank required for these conditions, according to the tables that appear in the book from which I obtained the formulas, for the condensate flow and the flash steam flow that the tank will have, (22,000 lb/h and 1102.3 lb/h approximately), I obtain that the type of tank required is type 7, whose dimensions are shown in the second table and has a volume of 200 cubic feet (5.66 cubic meters).
Now, my doubt lies in the fact that flash vapor tanks are supposedly usually small, and I consider that 5.6 cubic meters is too large a volume for a flash tank. Is the method I have been using to size this tank correct? If not, what other method do you recommend to correctly size a flash steam tank? Have I done the calculations correctly using this method? IF not, what am I not considering? I would greatly appreciate your help with this problem.
The document where i have been making the calculations is attached to this post along with the tables i mentioned. I made that this way beacuse the forum doesnt allow me to put images or screenshots. Teh document is in spanish
Attached Files
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Dimensionamiento de sistema de recuperación de vapor flash.docx 473.43KB
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Dimensionamiento de sistema de recuperación de vapor flash.docx 268.3KB
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Edited by JohnFields343, 24 April 2024 - 12:09 PM.
Answered
