From what I've read, Darcy Weisbach equation allows the calculation of fluid velocity related to pressure loss due to friction, but how can I calculate the effect of pressure drop on velocity of fluid on a pressure reducing valve? Is it just experimental?
Thank you.
It will be operating about 10-15min and not even everyday. The system will be a rack with 4 shelves and 24 mouse cages, the need is to deliver around 750ml on the pre-selected cages, that's why the volume will vary. It doesn't need to be super accurate, we want to fill the bottom of the cage...
I see what you'r saying, I proposed that to my teacher, but he wants to avoid the use of a tank. Also, the volume of fluid that I will need to be delivered will vary often. With constant flow rate it would be a matter of just adjust the timers. Would a flowmeter be helpful?
What I really want is a way to make the electrovalve close after I have x liters of water passed through the pipe. If I had constant flow rate, I could set a timer on the electrovalve. Is there any other way to solve this?
I just want to connect a pipe into a regular home tap and guaratee the same volumetric flow rate no matter the variations of pressure or velocity of the supply.
What is the purpose of the orifice? Can I apply Bernoulli's principle with the pressure reducer? In that case when pressure drops the velocity would have to increase, but that would mean that flow rate would increase aswell, which makes no sense. I'm really confused.
I have a pipe with regular diameter connected to a tap, the water comes from public supply, I assume that public supply can vary on pressure and flow rate. How can I guarantee that I allways get the same volumetric flow rate at the end of the pipe? Will a pressure reducer be sufficient?
Thank you!