3 replies to this topic

[vichar]

I am a final year student and require my project to be done on Brine Concentrator. I have read the working and the basic concepts of the Brine Concentrator(BC). This project will be a modelling and simulation(dynamic) of the BC. I need your help in modelling my flow sheet. I dont have the specs required for the feedwater and the equipments. How do i go about it? All I have is the just a basic flow diagram of the Brine Concentrator system.

Thanks in advance,

Vichar.

[Art Montemayor]

Vichar:

What University are you attending and where is it located?

It is totally irrational and illogical to assign a brine concentration (or any other concentration) project without giving you a total Project Design Basis (PDB). You need full identity of the incoming fluids/solids/energy and full description of what you are supposed to produce with the inputs. It is common sense that you can't be expected to generate a comprehensible heat and material balance if you don't have what I describe - as a minimum. Please tell us ALL of your PDB.

You should already know (or should have been taught) that you don't need equipment specifications for your project. THAT IS NORMALLY SUPPOSED TO BE WHAT YOU GENERATE. Your product should normally be a full, engineering description of the recommended process as well as the required equipment to do the job. You are probably also expected to predict the capital and operating costs of such a venture with a narrative of any sensitive qualities of the process such as environmental concerns and utility requirements. Safety and operating hazards are also a normal concern and should be reported.

We don't know what your assignment states or requires exactly, so I can't make any serious comments except critique you for not giving us the whole and correct story on what you are trying (or have been assigned) to do.

Please furnish the Forum with ALL the accurate details. Otherwise, we are all wasting our time trying to help you on an assignment that is still a mystery.

[vichar]

Dear Art,

Thanks for the reply.

I study at VIT University, Vellore, India.

The incoming fluid to the concentrator contains salts of Ca, Mg etc. Feed to Brine Concentrator (BC) is pre-heated by exchanging heat with BC distillate. Feed enters BC sump. Sump contents are recirculated to top of BC. Liquid flows through tube distributors, which forms a thin liquid film on inside of tubes. A very small fraction of the water evaporates as it flows down the tube. The vapor passes through mist eliminators and enters the compressor. The compressor raises the temperature and pressure of the vapor by a small amount. The compressed vapor enters the shell-side of the BC and is used as the driving force to perform the evaporation inside the tubes. The vapor condenses as distillate, which is used to preheat the feed. A small amount of concentrated brine is continuously removed from the sump to maintain a constant solids concentration.The distillate out of the BC is then used as boiler water make-up in thermal power plants. The sludge from the sump is then taken to a crystallizer for further processing.

Hope this serves the purpose. If any other information is needed please let me know,and I will do my best to furnish them to the forum.

Sorry for being vague.

[vichar]

Thanks for all the help. In the end, I did figure it out how to do.

Thanks again!