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I would recommend cheguide website. You will find very useful spreadsheets with explanation.You may go for Dew point calculations for instance: https://cheguide.com/dew_t_flash.html

Dear georgeverghese, All conditions were maintained the same including PG composition & Property package. All what I have done is to swith from Design mode to simulation made keeping the current geometry and removing the outlet temperature which I have designed the exchanger for. Also, while...

This is the simulation file attached for the sake of the comparisonhttps://files.engineering.com/getfile.aspx?folder=2970d703-da0b-4c3b-900e-1199bc89b37f&file=E-313_Simulation.pdf

Hello, In an attempt to design a shell & tube heat exchanger using Aspen EDR, I have designed a BHM exchanger to cool syngas from 46 DegC to 18.35 DegC using chilled water at 7 degC with excess area value of 0 %. However, when I used the same exchanger geometry generated by design mode in...

I think the cost of exchanger will go high in case I put the humid CO2 stream in shell side since I will need to use SS material for both shell & tube side.

Hi All, We intend to cool CO2 compressor suction stream of around 95000 KG/H from around 55 DegC to 44 DegC using chilled water of a temperature ranges between 5 DegC to 12 DegC. However, our CO2 suction stream pressure is as low as 0.985 Barg and by introducing the cooling unit this pressure...

Dear All, We are in a process of purchasing a process simulation software for our company (Aspen Hysys/Aspen Plus/Unisim Design/Aveva Process Simulation/ Pro/II/ Chemcad/Symmetry etc). However, we need to go in competitive basis for selecting the best software. For that we need to define scope...

Dear All, Whenever I am selecting the Peng-Robinson fluid package in Hysys, I find estimated values of Binary Interaction Parameters (BIPs) that are used for the calculation. Anyone have an idea by what method those BIPs are estimated ? is it Group Contribution method? or another method? or they...

Dear All, Whenever I am selecting the Peng-Robinson fluid package in Hysys, I find estimated values of Binary Interaction Parameters (BIPs) that are used for the calculation. Anyone have an idea by what method those BIPs are estimated ? is it Group Contribution method? or another method? or they...

Dear Apetri, Well I will be using aspen hysys software for the simulation.

Hello All, I want to simulate An ammonia absorber same as the attached sketch.The purpose of the simulation is to see the effect of increasing ammonia concentration in the solvent stream on the top product stream ammonia concentration. Could you please advise me what fluid package I should use...

Actually my concern is whether operating under this Na/PO4 and such PH and Conductivity will harm our RG boilers in ammonia plants in the short run or not? Those boilers are operating under 120 Barg. Is there any chance for any kind of corrosion or boilers failure? "Ammonia Boilers PH...

Dear Experts, In our complex we are currently facing higher sodium to phophate ratios problem in all our Boilers. We have an integrated BFW system where interconnected de-aerators which are common for both HP BFW pumps and KP BFW pumps are installed. BFW is supplied to both the Ammonia trains...

georgeverghese, Yes you are right I have missed that.

Dear georgeverghese I think the problem is taking place during the iteration of ni i.e. at some time yi will be assigned a zero (yi=0)and in turn the term RT ∑(ni ln yi) will have math error and stop iteration. Anyway, I could solve the problem by avoiding zero value of yi by "if" function in...

Dear Expert, I am trying to conduct Gibbs Free Energy Direct Minimization Calculations using Excel spreadsheet.I am following the procedures published in the attached PDF file. However, I am facing a problem in the initial estimate described in the paper (Highlighted in Yellow). In fact,I'm not...