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    Thursday, April 24, 2014   Blog   Search   
 
     

Where Do I Even Start?

Jan 16 2014
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ProMax offers a large selection of variables that can be specified by the user, and for anybody new to simulation software this freedom can be quite daunting.  How do you know which ones to set manually and which are better left for the program to calculate?  Here are some tips to help get you started:

Property Input Property Stencil

Jul 19 2013
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The Property Input property stencil allows the user to display and change an input property directly on the stencil. The variable may be almost any user-definable variable in ProMax, including flow rates, temperatures, energy rates, and even User Defined Variables.

Modeling Seawater in ProMax

Jun 14 2013
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To model a brine solution in ProMax, the acids and bases comprising the salts must be entered along with water, and the Electrolytic ELR property package must be used. In the Electrolytic Property Packages the acids and bases dissociate to form the ionic species, and the salt concentration can be viewed by adding an Ionic Info Analysis...

Modeling a Co-Current Heat Exchanger in ProMax

May 10 2013
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A number of factors contribute to heat exchanger performance, including the flow configuration. Counter-current exchangers are more efficient (and therefore more common) because they maintain a larger temperature difference between the two fluids across the length of the exchanger. Nevertheless, co-current exchangers are still used on occasion, and both may be modeled accurately in ProMax...

Tank Losses Property Stencil

Apr 26 2013
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The ProMax Tank Losses stencil is used to estimate the rate and composition of volatile losses from a liquid storage tank. Flashing, working, breathing, and loading losses are considered. The estimation is based on ProMax thermodynamics and the Environmental Protection Agency’s AP-42 methodology.

Pipeline Mach Number Property Stencil

Apr 11 2013
14
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The Mach number is a dimensionless quantity representing the ratio of the actual fluid velocity to its speed of sound. Have you ever needed to calculate the Mach number in your pipeline simulations? In ProMax you can use the property calculator called Pipeline Mach Example to display the maximum fluid Mach number in your Flowsheet...

92nd GPA Convention Presentations by BR&E Engineers

Apr 02 2013
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BR&E engineers are participating in two presentations at this year’s annual GPA Convention in San Antonio, TX. Both presentations will occur on Tuesday, April 9th. The first will take place during the Advances in Midstream Technology Forum and is entitled ‘Is Your Radial Turbo-Machinery Operating at Optimum?’ (3:30 PM, Salon K). The second presentation is a collaboration with BCCK Engineering and will take place during the Project Economics and Project Finance Forum and is entitled ‘Economic Alternative for Remote and Stranded Natural Gas and Ethane in the US.’ (4:30 PM, Salon I). In addition, BR&E’s Hospitality Suite will be welcoming GPA Convention attendees Monday, April 8th from 6-9 PM in Salon E.

SO2 Wreaks Havoc in Amine Units

Mar 21 2013
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If you are modeling an amine unit with SO2 in the feed, possibly from flue gas which contained sulfur compounds before incineration, you might notice that the Recycle block fails to converge. This is due to the build-up of non-regenerable salts in the amine loop. Once in the system the SO2 forms heat-stable salts with the amine and has no way to escape. The amine will eventually be rendered ineffective by being tied up as a salt...
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