Great question. In Excel you can name the cells so that it is more convenient (but it helps if that is made clear!), but it is definitely pointing to D3.
I know I'm a year late, but if you don't want to use Excel, you can use iteration or a graphical calculator solver (assuming it is allowed in your exams or tests).
Hello. Wouldn't the mole fraction of the gas be zero? Since you are dealing with a liquid... but it would mean that the left side of the equation is equal to 0, which would mean that Psat is 0 or liquid mole fraction is 0... My question is: why do you include the gas mole fraction if the substance is an ideal liquid? or does the ideal liquid assertion imply that there's is a solute(very dilute)?
Thanks for your question. We still need the mole fractions in the vapor (Y1 and Y2) to add up to 1, even if there is not vapor present, since a liquid is saturated at the bubble point which means it is in equilibrium with its vapor phase. So Y1 and Y2 are not zero. Hopefully this helps.
The equations for P1sat and P2sat are given. They are put into the spreadsheet and when the temperature is changed, the saturated pressures will be calculated.
Hi, I am designing a flash drum. I have calculated the bubble point temperature and Dew point temperature. However, Im unsure as to how to calculate the temperature of the drum. Could somebody shed some light on this. Thanks
Thx sir, had been spending hours trying to find a solution to a problem like this, with this procedure it took me less than 5 minutes.
Hi great video! Was just wondering how did u make the variable cells as T instead of writing it as D3 in Psat1 and Psat T? A
Great question. In Excel you can name the cells so that it is more convenient (but it helps if that is made clear!), but it is definitely pointing to D3.
The temperature calculation via Solver was verified!!
Can I do this manually without Excel's Solver?
Did you ever find out?
I know I'm a year late, but if you don't want to use Excel, you can use iteration or a graphical calculator solver (assuming it is allowed in your exams or tests).
Hello. Wouldn't the mole fraction of the gas be zero? Since you are dealing with a liquid... but it would mean that the left side of the equation is equal to 0, which would mean that Psat is 0 or liquid mole fraction is 0... My question is: why do you include the gas mole fraction if the substance is an ideal liquid? or does the ideal liquid assertion imply that there's is a solute(very dilute)?
Thanks for your question. We still need the mole fractions in the vapor (Y1 and Y2) to add up to 1, even if there is not vapor present, since a liquid is saturated at the bubble point which means it is in equilibrium with its vapor phase. So Y1 and Y2 are not zero. Hopefully this helps.
LearnChemE
Thank you
@@LearnChemE temperature is given?
How did you solve the p¹sat and p²sat
The equations for P1sat and P2sat are given. They are put into the spreadsheet and when the temperature is changed, the saturated pressures will be calculated.
this is so useful. thx
Why I took T=84,5?
Hi,
I am designing a flash drum. I have calculated the bubble point temperature and Dew point temperature. However, Im unsure as to how to calculate the temperature of the drum. Could somebody shed some light on this. Thanks
You would likely need some kind of information about the composition leaving the drum in order tot calculate the temperature