- #1
Wizardsblade
- 148
- 0
Hey its been a while since I took thermo and I am pretty rusty. I am trying to figure out a system with differential pressures. I can find the temperature difference pretty easy but finding the exact pressure difference is a bit more complicated then I remember.
Situation:
I have a small container that I am removing the air out of at 100 cfm (with a fan) and the container has a small whole on one end. I am trying to figure out about how big the whole needs to be to allow 50CFM in and how much of a pressure difference this will make.
I know that the pressure difference will slow down the fan but for now I am neglecting that.
Purpose:
I am trying to see how much I can cool a small box with a fan. (In the end I would like to be able to try different Cfms out and different whole sizes to see how the different combinations work.)
Any help would be greatly appreciated. I have tried to google this for a few days now and I either don't quite get what I am reading or I am just not finding the answer / equation.
Situation:
I have a small container that I am removing the air out of at 100 cfm (with a fan) and the container has a small whole on one end. I am trying to figure out about how big the whole needs to be to allow 50CFM in and how much of a pressure difference this will make.
I know that the pressure difference will slow down the fan but for now I am neglecting that.
Purpose:
I am trying to see how much I can cool a small box with a fan. (In the end I would like to be able to try different Cfms out and different whole sizes to see how the different combinations work.)
Any help would be greatly appreciated. I have tried to google this for a few days now and I either don't quite get what I am reading or I am just not finding the answer / equation.