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Since87 · 04-22-2003, 12:05 AM

Not looking good.

I crunched the flow data for the three heatercores and I can get good simulations for Blackeagle's and Deeppow's HC using two simple factors.

Mine, however, is way out. (The two blue lines)

Mine 'should' be more restrictive.

I'm inclined to believe that mine has less restrictive flat tubes than the others. I could be missing something in the calculations, but if so, it's something big.

Anyway, I pulled two numbers out of...

I derived two numbers by trial and error.

'Tube resistance/inch' = 0.002
'Overhead' = 0.0008

Blah, blah, blah. It's getting late. If anyone is interested in the math, I'll detail it later and/or pending Bill's permission I'll make my Excel spreadsheet available.

Edit: Just noticed I got the axis labels reversed.

04-22-2003, 12:05 AM	#58
Since87 Pro/Guru - Uber Mod Join Date: Sep 2002 Location: Indiana Posts: 834	Not looking good. I crunched the flow data for the three heatercores and I can get good simulations for Blackeagle's and Deeppow's HC using two simple factors. Mine, however, is way out. (The two blue lines) Mine 'should' be more restrictive. I'm inclined to believe that mine has less restrictive flat tubes than the others. I could be missing something in the calculations, but if so, it's something big. Anyway, I pulled two numbers out of... I derived two numbers by trial and error. 'Tube resistance/inch' = 0.002 'Overhead' = 0.0008 Blah, blah, blah. It's getting late. If anyone is interested in the math, I'll detail it later and/or pending Bill's permission I'll make my Excel spreadsheet available. Edit: Just noticed I got the axis labels reversed. Last edited by Since87; 04-22-2003 at 12:40 AM.