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Ladies and gentlemen, We're looking into importing an European high pressure machinery for Nitrogen and carbon dioxide for use in medical/pharma industry. The machines are CE approved for the European market but could these machines be used in Texas without modifications? As far as I know the...

Here is the filehttp://files.engineering.com/getfile.aspx?folder=823ccbcb-20dc-41c7-bf3b-157e96c40e5d&file=distillation_simulation2.xlsm

Hi, I'm trying to make a dynamic (time dependent) model in excel of The pressure and temperature (liquid phase) in a tank during a constant volume gas outtake and a constant heat flow into the tank. At t0 the tank contains both liquid CO2 and gaseous CO2. Temp=10 deg C and pressure 51 Bar (1) At...

Dear all, I've read numerous posts where choked flow and supersonic velocities are discussed. Although, What I can't find is any information on is WHAT PRACTICAL IMPLICATIONS AND the magnitude of problems this may cause (chock waves, noise etc)? In a case where there are two reservoirs for...

Is there a simplifyed formula that can be used to esitmate the energy consumption of distillation of a binary mixture? Maybe a factor times the heat of vaporization? Looking forward to your answers Merry X-mas

Another approach: Use gaseous N2 to cool the water in a heat ex. Use liquid N2 to directl cool recycled gasous N2 to desired temp. Although I would go for direct cooling with N2 into the water as suggested above is it's possible.

ash9144, thanks for your tips, but I can't really find much using the search word you suggested. Is there another common name for this type of separator? /A

Thank you for you quick rely and good example! I my case we can do much about the diameter in this step. It turns out (using the Brown-S eq.) that i have a gas velocity 2-3 times greater the the maximum velocity in the B-S eq. WIll a demister be of any use in this case? DOesn anybody have...

Hi, We have a problem with salted water/organic solvent in a inert gas stream. The mist most be eliminated prior to the compressor. We've a gas flow rate of max 230 liters/minute and to start of simple we would like to pass it though a vertical pipe (inside diameter of 80mm) containing a...

In laboratories, there is a common “vacuum suction” thing (looks like a “T” working on the principle that tap water moving past a junction (T-junction) don’t know the name for it) will case a low pressure due to the high velocity (Bernoulli’s eq). This I can understand intuitionally, but with...

Hi! I received a large quantity of data from one of my students. The variables (factors) are the final concentration in a bulk solution. Components A or B are mixed with different ratios of x or y or z... Water is also used 0 or 0,1% A and B are present at 0,4 or 0,8 % when added into the bulk...

hi! I can apply constraints and loads as BC. FOr the "walls of the bolt" I´ve constrained them in the normal direction since it won´t be able to deform in this direction (at least I think so). FOr the internal shell wall I´ve set the load in the normal direction the the reactor pressure. Since...

i´m quite new to this and I´m using femlab. What do you mean by tie connection?

Thanks for the answers! Prex: This reactor is for personal learning use only and as you problably already have figured out by the means of the construction, it´s not for commercial use! The reactor will be calculated upon and results minimum results of bolts, thickness etc will be compared...

IN a thick walled cylindical reactor subjec to an internal pressure, a flat lid will be attached with 8 bolts. I would like to calculate the stresses/Strains in the shell, especially radially outside the bolts in the shell in order to understand where to place the bolts and how much shell wall...

I can´t find what rules to apply for this in the code. As far as the internal pressure the further out the holes in the shell wall are placed the better. what forces does the shell wall outside the bolts have to withstand?

Hi! In a cylindrical reactor with a inside diamter of 100mm with wall thickness of 35 mm a flat lid 40 mm thick will attached by 8 bolts,each 10 mm diamter. The bolts will be screwed into the shell wall. The construction in stainless steel. How many mm of material (Shell wall) is required...

what is slip/non-slip boundary conditions?

Prex! thanks for your answers and advices! Obviously I´m not an structural engineer and yes, my drawings will be reviewed but an experienced engineer. I´m in a totally different field but I use this thread to learn and compare with my "own calculations" which will not totally be the...

Prex, the sightglass is attached in the sight glass unit. THe sightglass unit has a 2" NTP male connection. No other holes than the 2" NTP is necessary for the sight glass unit. best regards andy