Cycling in distillation column?

What does it mean by cycling in distillation columns?

03 April 2019 1,647 7 View

Exergy Analysis of Distillation?

How exergy analysis of simple (non-cryogenic) distillation column is different from exergy analysis of cryogenic distillation column? If possible, can anyone of the experts provide me equations?

03 April 2019 4,311 4 View

Optimization algorithm in Aspen Plus?

Guidance requested in writing an optimization algorithm in Aspen Plus..

01 February 2019 4,412 1 View

Distillation optimization in Aspen Plus?

I am using "Aspen Plus Optimizer Tool" to optimize the distillation column design with respect to reflux ratio and number of theoratical stages. However, I am unable to do sensitivity analysis,...

31 December 2018 586 17 View

Efficiency of a process?

How we can calculate a combined efficiency of a process? e.g. if two compressors are installed, then how can we calculate their combined efficiency? If compressors, distillation column, turbine...

31 December 2018 5,189 4 View

Exergy Analysis of Distillation Column?

Hello. I am using heat integrated distillation column. However, one of the column`s exergy efficiency is greater than 100%? I have seen a lot of literature but still unable to figure...

11 December 2018 9,880 3 View

I`ve modelled a reactor, found 2.75 m3 volume on Aspen Plus for 98% conversion, but aspen hysys simulation results 15 m3. Can it be justifiable?

Difference b/w Two Softwares results? which one to use? or Report both in the calculation.

31 December 2016 9,812 12 View

Buffer Exchange using column packed with sephadex G-25 effect on protein concentration?

Hello, If i am doing a buffer exchange for an antibody of 1mg/mL, does the elution lose protein in the process of buffer exchange? For example, if i flow through 500 uL of 1mg/mL sample, and...

03 March 2021 6,299 3 View

No title

03 March 2021 5,360 2 View

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

What is recommended for solid domain in ANSYS FLUENT?

Should I mesh the solid domain ? or should I use wall thickness? or Shell conduction? for Heat Transfer between two fluids of a Heat Exchanger. what is recommended?

01 March 2021 9,785 3 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

How can i resolve the "final solutuin is not converged" error in Comsol for my heat transfer simulation??

I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...

28 February 2021 8,626 3 View

How can we raise the figure when we writing a paper with Latex ?

Hi, everyone. I'm a starter to write a paper by Latex. But I have some difficulty using it. I'm writing the paper with 2 columns. And, there is one figure that occupies the 2 both-sides. I want to...

26 February 2021 3,738 3 View

Exit velocity of natural gas from pressurized tank?

Hi Guys. I'm a mechanical engineer and have a bit trouble, would be very glad if you could help me with my questions. I have a pressurized tank which contains Natural Gas at 200 Bar and 293...

26 February 2021 6,253 3 View

What is the best way to calculate the angles of twist for concrete columns subjected to torsional moment using finite element software?

In Finite element software like ANSYS , there is difficulty in obtaining direct results of twisting of concrete members because SOLID65 which is the unique element designed to represent concrete...

26 February 2021 3,806 2 View