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Flow Rate Estimator Spreadsheet V1.7 - Page 9

post #81 of 125
Thread Starter 
Yeah, I got lucky on the other two. The Dwyer monometer run $250 retail, but got one used for $100. They have tons of different models too, this one was just the right range.

The King flow meters also run around $100 retail, but found this one which was still new for $40. So for $150 ish I'll have the flow rate tools I've wanted for a while now..

I bought the digital flow meter first, should be here really soon so I can take some better pics and run some tests to see how accurate it is. I'm guessing it's a turbine type (paddle wheel) type meter. Anyhow, looking forward to having the testing abilities back
    
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post #82 of 125
Thats not a bad price at all for all that....That and your mill should keep you busy this Winter....
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post #83 of 125
I was just wondering... why isn't this a sticky?
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post #84 of 125
Quote:
Originally Posted by DuckieHo View Post
I was just wondering... why isn't this a sticky?
why isnt ira-K a local moderator yet?
post #85 of 125
Thread Starter 
Updated to version 1.8 to include the Fuzion Nozzle kit, and worked in a drop down meny style interface.

http://www.overclock.net/water-cooli...ml#post2441593

Now that the test rig is working, I've got a couple of other items to test and update. Plan on putting out another update in a week or so..
    
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post #86 of 125
I second the STICKY

Great work Martinm210. We all appreciate your particular mental condition
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post #87 of 125
Your going to have every thing in your estimator pretty soon.......Its already a sticky, and a well deserved one...
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post #88 of 125
Thread Starter 
Thanks!

I figured pressure drop is sort of just one of those not very understood things. If I'm going to bother testing to produce the curves, might as well plug it in here so you can make sense of it regarding flow rate.

There are quite a few pumps and blocks in there, although I could use a few more radiators. If any curves pop up out there that's not in here, let me know...

I have to continue feed this condition of mine..
    
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post #89 of 125
Thread Starter 
Here is some updated pressure drop testing on several existing and a couple of new fittings:

Special thanks to VirtualRain (XS member) for the Farnel elbow. I really expected it to do even better than it did because it is actually machined with a small radius on the inside, but it looks like the steps from barb to fitting cause quite a bit of restriction. Regardless it's still a much better option than a nylon 1/2" elbow.

I need make a copper T to test, I'm all out for right now. Regardless, the copper 90 is so little pressure drop, it's starting to get difficult to measure. My previous pressure drop test on the copper 90 is pretty close. Before I figured close to 9 times less restriction than a nylon 90...this test confirms at about 9.9 times less..

A copper T should be even less pressure drop than that.:up:

Here is the updated graph and raw data collected:


And a picture of in progress testing of the "Mother of all Elbows"...


I'll have these plus the my recent DigiFlow Flow Meter added into Version 1.9 soon.
    
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post #90 of 125
Nice work! It seems to me that adding one of these 90's results in a barely noticeable loss in flowrate.

Are you going to drop test the 3/8" ones you sent? I would love to see those stacked up against the monster elbow
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