Jowi Morales is a tech enthusiast with years of experience working in the industry. He\u2019s been writing with several tech publications since 2021, where he\u2019s been interested in tech hardware and consumer electronics. ","collapsible":{"enabled":true,"maxHeight":250,"readMoreText":"Read more","readLessText":"Read less"}}), "https://slice.vanilla.futurecdn.net/13-4-13/js/authorBio.js"); } else { console.error('%c FTE ','background: #9306F9; color: #ffffff','no lazy slice hydration function available'); } Jowi Morales Social Links Navigation Contributing Writer Jowi Morales is a tech enthusiast with years of experience working in the industry. He’s been writing with several tech publications since 2021, where he’s been interested in tech hardware and consumer electronics.
hotaru251 i mean not really shocked this works. pressurizing and then releasing pressure is crazy heat transfer. Reply
Air2004 hotaru251 said: i mean not really shocked this works. pressurizing and then releasing pressure is crazy heat transfer. I gotta run your statement by the interwebs before I can trust it. Ok, your statement checks out. Reply
Jame5 Scientists: "Did you know that pressurizing/depressurizing coolant is an effective method of heat transfer?" Entire HVAC industry: … Reply
Notton The article already compares the solution to how HVACs work, but the claim is the fluid is even better than the various refrigerants currently used. However, no numbers are given, so by exactly how much? IDK. I didn't look into it too much, but I'm guessing this new solution's main competitor is R-717 (ammonia)? Reply
spaceminions Jame5 said: Scientists: "Did you know that pressurizing/depressurizing coolant is an effective method of heat transfer?" Entire HVAC industry: … The part you're missing is that normally you are compressing a *refrigerant* which *changes from a gas to a liquid* whereas this barocaloric effect occurs without a gas phase. Compressing gases can be inefficient and annoying; the compressors in refrigeration systems are nicer but think about how loud and hot an air compressor can be. Pumping around water with stuff in it is pretty simple and easy. Edit: So it looks like their particular salt absorbs a lot of heat when it dissolves, like instant cold packs, but it also comes back out of solution when pressurized, which releases the heat again of course. Pumping gases around is slower than pumping liquids on a mass basis, since liquids are denser, so the flow rate needed should be less on a volume basis, which would be good. Might also be nice that you don't have to prevent accidentally feeding liquid refrigerant to the pump inlet, so no superheat? Idk. Reply
edzieba Aside from that, it’s hygroscopic and absorbs moisture, potentially affecting the long-term stability of the solution. … It's used as a saturated solution . In water. Regardless of how hygroscopic it is, it physically cannot absorb any more water. Reply
spaceminions edzieba said: … It's used as a saturated solution . In water. Regardless of how hygroscopic it is, it physically cannot absorb any more water. Ah no, wrong way around. A saturated solution means if you had any less water you couldn't dissolve all of the salt. It can definitely keep absorbing more water, until it becomes dilute enough that it loses as much as it's gaining. But it should be a closed loop and not do that anyway, and maybe you could trap a bit of excess salt so that any water that somehow gets in won't change the concentration. Reply
bit_user spaceminions said: Edit: So it looks like their particular salt absorbs a lot of heat when it dissolves, like instant cold packs, but it also comes back out of solution when pressurized, which releases the heat again of course. This is what I was wondering. I figured there must be some nonlinearity they're taking advantage of. As I understand it, that's what makes 2-phase cooling so attractive. Thanks for your informative comments! : ) Reply
edzieba spaceminions said: Ah no, wrong way around. A saturated solution means if you had any less water you couldn't dissolve all of the salt. It can definitely keep absorbing more water, until it becomes dilute enough that it loses as much as it's gaining. That's just regular old dilution though, with hygroscopy (or lack thereof) completely irrelevant to the addition of more water. Reply
Key considerations
- Investor positioning can change fast
- Volatility remains possible near catalysts
- Macro rates and liquidity can dominate flows
Reference reading
- https://www.tomshardware.com/pc-components/liquid-cooling/SPONSORED_LINK_URL
- https://www.tomshardware.com/pc-components/liquid-cooling/chinese-researchers-discover-new-salty-cooling-solution-that-can-drop-temperatures-by-more-than-50-degrees-celsius-in-seconds-depressurizing-saturated-fluid-triggers-massive-amounts-of-heat-transfer#main
- https://www.tomshardware.com
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