der8auer Posted January 30, 2014 Posted January 30, 2014 I'll release my new memory pot in about 1-2 weeks. I won't hide that I tested three other pots and thought about improving and combining designs instead of reinventing the wheel. One part of the development was a thermal simulation e.g. to check the perfect thickness of the heatspreaders, position of screws and stuff like that. I can't show the memory pot pics yet but I also did a simulation of my SLIM pot and thought the pics could be interesting I've heard a lot of trollscience about pots and stuff about how "heat spreads" but I'm pretty sure none of those guys ever did a real test. The pictures show the pot in an non insulated condition. Means not covered by armaflex or anything else. Just ambient temperature at +20°C. For the simulation the holes were filled with LN2 (not the complete pot!) and a 500W heat source with about 4cm² size was placed in the middle of the contact area. Will post more soon including stuff about the memory pot Quote
MaJ0r Posted January 31, 2014 Posted January 31, 2014 Nice to see that. I hope you'll do mounting process as much easy as you can. Mounting Vince memory pot it's not easy thing for me )) Quote
der8auer Posted January 31, 2014 Author Posted January 31, 2014 Hahaha epic meme Nice to see that. I hope you'll do mounting process as much easy as you can. Mounting Vince memory pot it's not easy thing for me )) I tried at least. The biggest problem is always if you want to support all kind of modules. Single-sided, dual-sided and modules with IHS and keep a good heat-transfer at the same time. Quote
bartx Posted January 31, 2014 Posted January 31, 2014 I'd like to know something more about your simulation. It's simple - 20C ambient, -196C inside and 500W heat flux or something else? And what exactly are you measuring - time to cool down or ability of the pot to handle 500W load? I'm just curious about effects on simulation like this. At example it is pretty easy to make an optimal shape of radiatior, when there are only two boundary conditions (convection and heat flux) and it's obvious where to apply them, but in this case it is a lot more complicated in my opinion. Colours looks nice, but in FEA simulation you'll always get some colours at the end Quote
Massman Posted January 31, 2014 Posted January 31, 2014 Have you simulated different types of insulation as well? Because no one is running without and it would be interesting how much insulation is necessary to have the most optimal cooling. Quote
der8auer Posted January 31, 2014 Author Posted January 31, 2014 (edited) I'd like to know something more about your simulation. It's simple - 20C ambient, -196C inside and 500W heat flux or something else? And what exactly are you measuring - time to cool down or ability of the pot to handle 500W load? I'm just curious about effects on simulation like this. At example it is pretty easy to make an optimal shape of radiatior, when there are only two boundary conditions (convection and heat flux) and it's obvious where to apply them, but in this case it is a lot more complicated in my opinion. Colours looks nice, but in FEA simulation you'll always get some colours at the end The screenshot is taken after 1s of simulation as it's a static simulation and no dynamic simulation. The boundary conditions are basically the heat-radiation to the ambient air, LN2 inside and the 500W load. As you said it's way too difficult to do a 100% correct simulation. The biggest problem is that LN2 is not cooling down steady. The temperature coefficient between the LN2 and the copper is the biggest problem here. Decreasing the temperature of the pot the temperature coefficient is increasing. So it's impossible to do a simulation e.g. of how long it takes to cool down the pot or to measure the temperature you can reach. But you can clearly see the heat transfer inside the design which is enough to see whether a hole is placed at a wrong spot or which mass actually helps as a buffer. Have you simulated different types of insulation as well? Because no one is running without and it would be interesting how much insulation is necessary to have the most optimal cooling. Yea I can decrease the thermal radiation from the ambient air which will make the pot appear in a deeper blue. Ofc it's more realistic with insulation but this way you can see the thermal transfer a lot better between load and LN2. It depends on the insulation material you're using. Using the real armaflex it helps up to about 14mm thickness. You will just need less LN2 but the performance of the pot won't change. Edited January 31, 2014 by der8auer Quote
Guest Bullant Posted January 31, 2014 Posted January 31, 2014 @ Massman,insulation is a must imo unless you want to use excess ln2,the Armaflex Insulation Tape is great for this it also keeps the cold confined. @ der8auer looking forward to seeing your pot,I hope it has as much volume as the ney pro pot Quote
der8auer Posted January 31, 2014 Author Posted January 31, 2014 Yep volume is about the same. Did not measure the volume of the ney pot but from the looks it should be alright. Quote
Guest Bullant Posted January 31, 2014 Posted January 31, 2014 Yep volume is about the same. Did not measure the volume of the ney pot but from the looks it should be alright. Sounds Great Quote
Splave Posted January 31, 2014 Posted January 31, 2014 we are waiting for that fine ass german build quality Quote
riska Posted January 31, 2014 Posted January 31, 2014 Looking nice roman i alredy have 2 of your Raptor rev2 gpu pots and they are awsome but i have only one bad thing about the pots wy are the hole for the probe soo big? it only have to be 2mm max it is very hard to Mount the probes in taht big hole and insurring that they are seated right.. Quote
ObscureParadox Posted January 31, 2014 Posted January 31, 2014 German engineering at its finest. Looking forward to purchasing one of your new GPU pots Quote
TaPaKaH Posted January 31, 2014 Posted January 31, 2014 Do you have any theoretical background behind your designs or you're just similating things on random to see what should work best? Quote
Guest Bullant Posted February 18, 2014 Posted February 18, 2014 Hey der8auer,any more news on the memory pot,pics or available date? Quote
der8auer Posted February 18, 2014 Author Posted February 18, 2014 30 x Memory Pot and 80 x Memory modules will be ready this week Stuff is finished and currently on the way back from the anodizing company to my place. So probably 2-3 days and I'll publish pics and it will be ready for shipping. Quote
dinos22 Posted February 18, 2014 Posted February 18, 2014 nice to see some simulation, subbing Do you have any theoretical background behind your designs or you're just similating things on random to see what should work best? good question Quote
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