Huge Radiators: Roundup

[HESmelaugh]

HES's graph looks good...

You must have a very small loop. And i mean a TINY loop. :P

But on my fesser's which are pure copper, i noticed the warnup time being a ...

That's actually an impotant point: I have my loop as short as possible. I also make sure that the EK X-Res on the pump is never filled to the top. Silly, but true. :p
So I have the absolute minimum of water in my loop.

I thought the BigNG sensors were only good to .5C?

How often does it record/log (What does 339) represent?

And how the heck are you keeping your ambient that flat. No matter how hard I try, mine will slowly go up and down just a bit.

And one more stupid question of mine. How are you fixing RPM at exactly 400, 800, RPM etc.? Is that something the BigNG can do for you, if so..that's pretty handy. I've tried setting an RPM, but it varies slightly as the fans warm up and as system voltage fluctuates. I ended up giving up and just let the crystalfontz log the RPM every second and average the end result over the test.

The graph looks good, I can only wish mine would get stable that fast..

Some very crucial points here, that aren't apparent just from plucking the data out of Excel.

Let me start with the fans: Unfortunately i can't fix fan speeds. They do fluctuate and I can't log the rpm. The reason for this is that the bigNG does not tell you the actual fan speeds at all. As far as I can tell, it simply checks the rpm once and then gives you calculated numbers on what the fan speeds should be at the voltage you set. This is why I actually use two Kaze Masters to monitor fan speeds. I warm the fans up for about ten minutes and then set them as closely to the target speed as I can i.e. fluctuating around the target speed. This is a source of impresicion in my testing. I'm sure I mentioned this in my first radiator review(s), but I should add this info to the testing method bit of the new review as well.

Water-Temp: The plot shows all four probes averaged out. It's correct that the bigNG has a resolution of .5°.

I made a new graph and put a little more effort into it, this time.
Here is the raw data from the water and air in probes:



It's logged in 5-sec-intervals. The air temperatures fluctuate by +/-.5 degrees for the entire range of the data that I average out for my results. I didn't include the air out temps because those are rubbish in my test setup...