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Lpg Liquid Vapour Calculation In A Vessel

lpg liquid vapour calculation

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#1 d_kanmani

d_kanmani

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Posted 16 September 2012 - 11:55 PM

I know the vessel calibration chart(water capacity) and i have level,temp and pressure readings of the vessel, how to calculate LPG liquid nd vapour mass?

#2 Art Montemayor

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Posted 17 September 2012 - 05:47 AM

Communications would be much better if you didn’t try to ask your query in the title of this thread. Why don’t you simply use the body of this post? I think you want to know the amount of LPG vapor mass occupying the vapor space of your LPG storage tank. Is that correct?

You already know the volume of LPG liquid because you know the level height and you have the vessel calibrations. The difference between the total vessel volume and the liquid is obviously the vapor volume. To find the mass equivalents of each of the volumes, you multiply by the respective LPG densities.

I believe I can guess what your basic difficulty is – and which you totally fail to state: you don’t have the LPG liquid and vapor densities and you don’t know how to obtain them. Is that also correct? If so, please so state it so we don’t waste a lot of time guessing. I have previously posted a response to a similar problem about a month ago or so. You can try to use the SEARCH engine to find that thread and calculate the approximate LPG densities. However, you must know the LPG composition. THAT, I can’t guess.

#3 benyoussef

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Posted 05 April 2013 - 02:41 PM

i have a Project of sizing a cold flare and i have the composition of the LPG in the liquid phase and i want to know how can i calculate the vapor density of each compound

please admin can you give me some help?? 






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