Quote:
Originally posted by bigben2k
Well, it's good!
You've got a few advantages going for you: using aluminium, you'll have a thin baseplate, and combined with a jet inpingement nozzle, you should be able to get nice results.
How did you come up with this design? What's your idea behind it?
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It started with my first block idea. Trying to make one that was easy to do. In my first block I used a 3/4 inch drill and drilled 3 holes then connected the three with a drimmil. I thought about the slight taper of the bit where I could get closer to the base which is at 1mm now. Then I started reading about studies of impingement and that got me thinking. So I put together a rough jet impingement that hit hit dead center and the impingement would flow up the sides in a radius. That first try didn't work I got no improvements. Then I thought more and figured it was submerged and recycling the heated water back into the impingement. So I decided to make the nozzle fit right into that taper so it was sitting 2 mm above. Thats where I seen better results. The reason why the mutliple nozzle is tapered but it just doesn't fit with this new block. Currently with my old block I get 8C above my water temp at load. Have no idea what this one will do.
The idea behind the impingement I have is to use the jet impingement like you normally would but to sit it as close to the base as I can around 1mm above the base plate. Then it would be impinging against the sides around the main jet impingement hitting the base which makes the stagnation point larger and keeps the water from flowing back into the jet. The taper idea came from looking at bridges and how they used archs and triangle shapes to hold the bridge up. I used that same idea using a slight taper to get a thinner base directly over the die while retaining strength. I'm just using that same shape upside down.
I have a good drawn out block idea to mill. Just looking into the cost of it.