Recent content by JeweliaHeart

Homework Statement Problem statement is attached... Homework Equations my attempt at solution is also attached... The Attempt at a Solution One of my assumptions was to treat the inlet concentration as a disturbance variable, and inlet flow rate as a manipulated variable...However, as I try...

Is the boiling point of a pure component the only factor used to determine which component is more volatile in a binary mixture. Take, for example, the case of isopropanol and cyclohexane. Isopropanol has a bp of 82.6 C, while cyclohexane's is 81. The two are are very close in value; however...

Here is the actual assignment spreadsheet where I am asked to perform certain calculations. It was already graded, but I'm making corrections in order to do my short report. Hopefully, this will make my questions make more sense.

Sorry, I meant to say reference 'pressure', not temperature. I will post the assignment PDF here as an upload. We used something called a Rankine Cycler which has an attached laptop that records the steady state temperature and pressure of the various equipment(boiler, turbine, etc.) over...

I was under the impression that the temperature and pressure of saturated steam are mutually dependent. Therefore, the water can not be a saturated liquid/vapor at those conditions, but it is rather a super-heated vapor. I think what I am supposed to do is perhaps choose the 112 psia as the...

Thanks for that handy table. I'm supposed to get the enthalpy in kJ/kg, so that table is just right. Now here is where I am confused. Under 187 degrees Celsius and 112 psia, the water is actually a superheated vapor. Therefore, I'm guessing that I'm supposed to choose only one value for the...

Okay. Thank you for explaining why the water enters the boiler as a saturated liquid. It makes much more sense now. Please help me along here... I found a table at this link: http://holbert.faculty.asu.edu/eee463/SteamTable.pdf. It is called a "Saturated Water Table". The boiler conditions...

Hello, I have an assignment that centers around the Rankine cycle and requires me to find the enthalpy of water entering the boiler. My professor has told me to take the enthalpy value at boiler conditions for a saturated liquid. I'm not really sure why I should make this assumption as I was...

In the lab where I work, we usually use stir/heat plates along with magnetic stir bars to heat our compounds simultaneously. However, in terms of achieving a specific temperature range, the stir/heat plates are not ideally suited due to random fluctuations from being open to the air. Therefore...

Hi, I am somewhat new to reactor design and processes, and I am wondering what exactly is the purpose of CSTRs in series. I read somewhere that "when high conversions of reactants are needed, several CSTRs in series can be used", but couldn't one also simply use a large volume CSTR if he/she...

Yes, any process that takes over 24 hours and is yet remains continuous is along the lines of what I'm looking for. Was this a continuous process or a batch process?

Hello all, I am wondering if anyone is aware of any continuous processes currently in industry that involve synthesizing some kind of product or material, but takes over 24 hours? I don't mean the entire process itself takes 24 hours or more, but a certain stage of the process, such as the...

Hmmm. That link does not open. I get this error message: Fatal error: Uncaught exception 'Zend_Controller_Exception' with message 'EXCEPTION_OTHER' in /home/pvcorg/domains/pvc.org/applications/pvc_org/application/modules/content/controllers/IndexController.php:66 Stack trace: #0...

I am interested in locating a material that can withstand a strong alkaline medium (10 M KOH) and approx. 5 atm pressure... I am somewhat new to material chemistry so all I have been able to think of thus far is PVC pipe. Through my research I have discovered that PVC is highly fire retardant...

Thanks for your help. It is nice to get feedback from someone who has more experience in the field than I do. Are you aware of any Kenics Mixers or PFRs with enough length to sustain a process that takes three days to react? I estimated that at a feed flow of 1 ft/s, it would take approx. 49...