Another Fluid Dynamics Question

[DaveBrader]

I want to Tee off of my main return from the sump to feed my new Chiller. My return from my sump is 1" PVC. If I Tee off of that main line, and reduce to 1/2 PVC to the chiller, how can I figure the amount of flow that will run thru the TEE to the chiller thru the 1/2 " PVC?

Thanks so much

Dave

 

[redox]

half inch line?

half inch line?

I wouldnt use half inch for anything, why not tee off but with 1 inch instead and install 2 ball valves after the tee that way you can regulate your flow better and have adequet flow to the chiller

 

[DaveBrader]

Well, one reason is, the connnections at the chiller are 1/2 inch, so I don't understand why it would matter if the entire line to the chiller is 1" or 1/2" since it gets reduced to 1/2" at the chiller anyway.. As long as the chiller gets somewhere between 300 and 700 GPH, it doesn't matter right?

What I need to know is how can I figure how much the flow to the chiller will be TEEing off the main line to the chiller.

Thanks, Dave

 

[Steven Pro]

Where is the water that exits the chiller going? If it goes back to the sump, you could just catch some in a cup for a few seconds and do the math to figure out the flow rate. For example, if it takes 1 second to fill one cup, that works out to 225 gph.

 

[DaveBrader]

OK, well I guess there is no math formula to be able to get an idea of what the flow will be. SO, I just hooked it up, and I must be blessed because, by using a stop watch, I calculated the flow thru the chiller at 425 GPH, which is working very well. The chiller brought down my temp 2 degrees in 30 minutes.

Thanks,

Dave

 

[DaveBrader]

Oh, one more thing. I was able to completely close the bypass valve I had installed on the return to the main tank from the sump return after I opened the chiller line too. I had too much flow for my overflow before I hooked up the chiller. With the chiller line installed, the bypass valve close I had excellant flow thru the chiller and the main return to the tank.

Dave