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  • ✇Liliputing
  • xMEMS “fan-on-a-chip” could bring solid-state cooling to smartphones and tabletsBrad Linder
    A company that makes tiny, solid state speakers is adapting its technology to make a solid-state cooling chip for smartphones, tablets, and other small electronic devices. The xMEMS XMC-2400 µCooling chip is an “active micro-cooling fan for ultramobile devices. According to xMems, it’s a silent, vibration-free solution that measures just 9.26 x 7.6 x 1.08 […] The post xMEMS “fan-on-a-chip” could bring solid-state cooling to smartphones and tablets appeared first on Liliputing.
     

xMEMS “fan-on-a-chip” could bring solid-state cooling to smartphones and tablets

20. Srpen 2024 v 19:42

A company that makes tiny, solid state speakers is adapting its technology to make a solid-state cooling chip for smartphones, tablets, and other small electronic devices. The xMEMS XMC-2400 µCooling chip is an “active micro-cooling fan for ultramobile devices. According to xMems, it’s a silent, vibration-free solution that measures just 9.26 x 7.6 x 1.08 […]

The post xMEMS “fan-on-a-chip” could bring solid-state cooling to smartphones and tablets appeared first on Liliputing.

  • ✇PCGamer latest
  • Why bother using spinning fans to cool your PC when you can just spin your whole rig?
    These days, you can't really get away with having a desktop PC without fans. Sure it's possible if your CPU's TDP is low enough, but desktops generally still need some kind of airflow. So, how about this: Instead of using spinning fans to move air through your PC, you spin the PC itself? That's exactly what Sodabaka did over at their Bilibili channel (via Tom's Hardware), with some funny results.Sodabaka began by testing an older Sandy Bridge era i5 2500K Mini-IT
     

Why bother using spinning fans to cool your PC when you can just spin your whole rig?

24. Červen 2024 v 12:13

These days, you can't really get away with having a desktop PC without fans. Sure it's possible if your CPU's TDP is low enough, but desktops generally still need some kind of airflow. So, how about this: Instead of using spinning fans to move air through your PC, you spin the PC itself? That's exactly what Sodabaka did over at their Bilibili channel (via Tom's Hardware), with some funny results.

Sodabaka began by testing an older Sandy Bridge era i5 2500K Mini-ITX system with an atypical tower heatsink. They placed it into a centrifuge that caused the entire PC to spin. I could not tell how fast exactly, but it looked to be around three revolutions per second.

A PC needs wires connected to provide power and a display output, but Sodabaka got around this by cleverly rigging up some wires so they don't get all twisted up after half a revolution.

This PC ended up being a bit too hot for comfort, reaching temperatures in the 100 degrees Celsius range, leading to throttling. So, it's not exactly a viable PC cooling solution. Not that I expected anything different! Not to be deterred, Sodabaka went on to equip a much larger Noctua NH-P1 passive cooler with and without a small fan attached to the top of the cooler. It performed better, but it still hit 100 degrees.

Your next upgrade

Nvidia RTX 4070 and RTX 3080 Founders Edition graphics cards

(Image credit: Future)

Best CPU for gaming: The top chips from Intel and AMD.
Best gaming motherboard: The right boards.
Best graphics card: Your perfect pixel-pusher awaits.
Best SSD for gaming: Get into the game ahead of the rest.

Sodabaka then gets really creative, by 3D-printing some large fan blades that were attached to the motherboard tray. The system with the Noctua cooler was installed and the RPM was cranked up. However, the presence of a full face mask and protective riot shield gave us all the information we needed that isn't a cooling option that can be seriously considered.

In the end, centrifugal force wins out. The NH-P1 weighs over a kilogram and it eventually got flung off, effectively destroying the PC.

It's all in good fun,  and really shouldn't be taken as any kind of effective cooling advice. Sodabaka goes above and beyond in their video to prove that the humble fan is not going anywhere. And, they don't even need the user to hide behind riot shields to operate.

© Sodabaka / Bilibili

  • ✇Android Police
  • Hands on with the Redmagic Cooler 5 ProJon Gilbert
    Gaming on the go in 2024 can take a myriad of forms. Whether you want to play PC games without a desktop computer, relive emulated GBA games, or play Nintendo exclusives, you can buy a handheld console built for that purpose. But these devices are rarely cheap, and it's reasonable to question why you should pay hundreds of dollars for a console when your phone has access to a staggering array of games via the Play Store and apps like Xbox Game Pass.
     

Hands on with the Redmagic Cooler 5 Pro

11. Červen 2024 v 00:00

Gaming on the go in 2024 can take a myriad of forms. Whether you want to play PC games without a desktop computer, relive emulated GBA games, or play Nintendo exclusives, you can buy a handheld console built for that purpose. But these devices are rarely cheap, and it's reasonable to question why you should pay hundreds of dollars for a console when your phone has access to a staggering array of games via the Play Store and apps like Xbox Game Pass.

Beating the heat: Huge radiators, clever heatsinks and transparent water blocks were the order of the day at Computex 2024

10. Červen 2024 v 17:56

It wasn't just the world's press that was feeling the temperature rise in Taipei this year at Computex 2024. What with many of the latest components pushing out huge amounts of heat, it was no surprise that we saw plenty of impressive cooling solutions built to match. 

From chonky radiators to innovative (and not so innovative) heatsink designs, to entire rigs dunked in cooling fluid, we saw plenty of cooling systems and cases designed to keep Gen 5 SSDs, high-end CPUs and powerful graphics cards from throttling back under the thermal strain.

And as for aesthetics? Well, you've got your pick, it seems. Transparent water blocks, RGB, err, everything, and case designs ranging from the subtle and discreet to something that looks more suited to a scientist's lab than your desktop were all on display.

Below, I've rounded up some of the more interesting and unusual approaches to cooling we spotted at this year's show.

SSD heatsinks: Towers of power

A selection of SSD coolers from the Team Group booth at Computex 2024

(Image credit: Future)

Plenty of Gen 5 SSD heatsinks were on display, in various form factors, shapes and sizes. Team Group had a selection of prototype designs at its booth, I suspect in a conciliatory effort to say "we know, we know, but we're working on it".

One of which is particularly fun to play with, at the very least. The Dark AirFlow 06 SSD cooler is made up of modular heatsink units that can be magnetically clipped together, complete with a magnetic (optional) mini fan. 

While I didn't get a chance to hear it running, I'd imagine that like most small, high-speed fan units, it creates quite the noise.

The Dark flow 06 SSD cooler concept from Team Group, on display at Computex 2024

(Image credit: Future)

Still, as a desk toy? Top marks. As a practical cooling solution? The jury's out.

Tower SSD heatsinks were everywhere, something that still strikes me as a somewhat inelegant solution to a significant cooling and packaging challenge. However, one of the more intriguing, smaller solutions was at MSI's booth. A "non-metal vapour chamber" concept looked, from a distance at least, like it was more of an aesthetic choice than a new design.

MSI Vapor chamber SSD cooler computex 2024

(Image credit: Future)

However, the cooler makes use of a "two-phase flow transition" of gas and liquid inside the transparent casing to beat the SSD heat. Whether this increases the efficiency of a smaller SSD cooler in comparison to a regular heatsink remains to be seen. That being said, it does look like a potentially promising solution in a small form factor, with a production version suggested for later this year.

Water cooling: Transparency and chonky rads

A transparent water block from the Thermaltake booth, Computex 2024

(Image credit: Future)

Speaking of see-through, while transparent water blocks and water cooling systems are nothing new, it did seem like many exhibitors were keen to show off just how much variation there can be in the designs. 

There's a level of child-like joy in seeing exactly how cooling fluid is moving inside a block, although I could have done with less white-coloured fluid reminding me of Ash's milky android blood spraying up the walls, à la Alien.

Still, from steampunk-inspired reservoir tanks to oversized, Bioshock-reminiscent CPU cooling blocks, transparency was everywhere. 

Image 1 of 4

A transparent waterblock in a Thermaltake case at Computex 2024

(Image credit: Future)
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Transparent water blocks in the MSI Project Zero Computex 2024 PC build

(Image credit: Future)
Image 3 of 4

A transparent radiator in a custom case at Computex 2024

(Image credit: Future)
Image 4 of 4

A transparent, RGB lit water cooling CPU block at Computex 2024

(Image credit: Future)

While there's a lot to be said for a cooling system that blends into the background, it was difficult not to be entranced by the greens, blues and pinks, flowing around various systems like an essential life force in a biological machine.

Entranced, or occasionally queasy. Again, white cooling fluid. Just say no.

While we're on the subject of water cooling, how about this for the most extreme example of radiator implementation I could find—the Corsair 9000D has room for not one, not two, not...ok, potentially four 480mm radiators.

Corsair 9000D

(Image credit: Future)

It also looks like it makes ice cream. Or maybe that's just me.

Still, I wonder if it has room for four of these. Hyte's new AIO CPU cooler claims to be the coolest and quietest ever, but it's also thick. How thick? Well, put it this way—it's spelt with two "c's".

Hyte Thicc Q80 Trio cooler at Computex 2024.

(Image credit: Future)

Watercooling ey? It seems there's no end to the possibilities, but leave it to Noctua to throw the cat among the pigeons. While the company doesn't currently make a liquid cooler, transparent or otherwise, it's working on a prototype unit that doesn't need a pump at all.

And as for the RGB, the transparency, the flashy effects? Well, it's Noctua. So, the final version will be mostly brown then. Probably.

Fans, fans, and more fans

Motherboard coolers and fans, on an AI PC at the Team Group booth at Computex 2024

(Image credit: Future)

AI PCs were, I'm sure you are aware, a big deal at Computex this year, especially for enterprise use. Many beastly rigs were on display, stacked to the rafters with multiple GPUs, inconceivable amounts of RAM, and chunky processors.

All that hardware in one case means a huge amount of heat. Which, in turn, means fans. Many, many fans.

That being said, for your average gaming PC user there were some interesting designs on display for cooling your home rig, too. Thermaltake's modular magnetic fan linking solution, the CT EX ARBG series, allows you to clip up to seven fans together with one cable. Complete with iridescent RGB, of course.

Image 1 of 2

Several Thermaltake CT EX ARBG fans, held together magnetically

(Image credit: Future)
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The magnetic connector for Thermaltake's linked fan system

(Image credit: Future)

Also at Thermaltake were the Toughfan EX12 and EX14 Pro, two heavily-reinforced fans with magnetic connectors. While these are primarily designed for server and enterprise use, the heavily overbuilt design principles seem like a good fit for anyone looking for an air-mover that's designed to stay running year after year.

Having held the fan blades myself, I can say that they feel capable of cutting vegetables, too. 

As someone that's been known to poke my hand inside a running rig and catch it on a spinning fan, I live slightly in fear of these reinforced models, but tough they certainly seem. Just watch those fingers.

The fan blades removed from a Thermaltake Toughfan EX14 Pro, held in the hand at Computex 2024

(Image credit: Future)

Here's something I didn't know I needed: A CPU heatsink fan clip that doesn't require those horrible, snappy metal springs to attach itself to the tower. I have sacrificed many a fingernail over the years to cooler clips, and the MAGAir 600 Ultra's easy clip-on design seems like a blissfully simple solution. 

The Thermaltake MAGAir 600 Ultra CPU cooler with the magnetic fan removed, and showing the LCD screen on top

(Image credit: Future)

It's also got a removable LCD screen for showing temperature info, or pictures of your dog. Y'know, whatever you need a screen on your cooler for.

Nope, I can't quite think of another reason either. Moving on...

A RAM cooler from Team Group at Computex 2024

(Image credit: Future)

While we're on the subject of fans though, this Team Group RAM cooler is just....I still can't quite get my head around it. I'm all for high performance, but if my RAM is running hot enough that it needs a clip-on pivotable fan attachment, I may just call it a day and go for slow.

Water cooled GPUs

RTX 4080 Super water-cooled, MSI

(Image credit: Future)

While most think of water cooling a GPU as a custom, jury-rigged sort of affair, I did come away quite impressed with the integrated solution in the MSI RTX 4080 Super 16G Expert Fusion. With a shroud that seemed mercifully discrete compared to some of the over-designed examples we've seen from some AIBs over recent years, the 16G Expert Fusion actually looks even better with its clothes off:

MSI RTX 4080 Super with water-cooling, MSI at Computex booth

(Image credit: Future)

That being said, it wasn't all roses. The RTX 4090 24G Suprim Fuzion might try to capture the same effect, but there's no getting around the fact that the RTX 4090 is a card that seems to point-blank refuse to be shrunk down to a reasonable size.

The MSI RTX 4090 24G Suprim Fuzion in a PC, held up by an MSI anti-sag arm, at Computex 2024

(Image credit: Future)

Yep, that's a little MSI anti-sag arm keeping all that bulk aloft. It's an impressive-looking thing, but one of the biggest card coolers I've ever seen. 

Although, the hybrid air-cooled/liquid-cooled Palit GeForce RTX 4090 Neptunus certainly provides some tough competition. When one cooling solution is deemed not enough, I suppose the next step is, why not both?

Three Palit RTX 4090 graphics cards on display at Computex 2024.

(Image credit: Future)

Frore's AirJet Mini Slim

Several Frore AirJet Minis in a casing at Computex 2024

(Image credit: Future)

Remember the Frore AirJet? A fanless solution to small form factor cooling that promised some excellent performance in a tiny frame, but seemed to suffer from a lack of adoption.

Well, Frore has since announced the AirJet Mini Slim, a thinner design with intelligent self-cleaning and the capability to optimise its performance based on the surrounding temperature.

I managed to get my hands on several of them at Computex, and had a good long chat with Frore's CEO about exactly why the AirJet has taken its time to show up in consumer products. I'll be publishing a piece covering all the highlights of our discussion in the next week or so, but what I can say is that while the AirJet Mini Slim might not be the future of all hardware cooling, the specific demonstrations I was shown were quite impressive.

Given all the huge cooling solutions on display, seeing something so tiny move a decent amount of air was a welcome change in pace.

Immersion case

The ASRock, Intel and Thermaltake collaboration immersion PC case at Computex 2024

(Image credit: Future)

Y'know what they say: if in doubt, dunk the whole PC in fluid and call it a day. Ok, maybe they don't say that, but this Intel, ASRock and Thermaltake collaboration was a real crowd-pleaser this year.

Water cooling, taken to its extreme. While the temperature reduction is likely to be impressive, let's be honest, in practical terms this is all about the visual effect. Still, bubbling GPUs and inert CPU fans suspended in fluid seem at first glance to defy some basic laws of physics—although I don't think any of us will be immersing our home PCs anytime soon, no matter how stunning the result.

Size matters

While the Frore AirJet Mini above might be trying to keep things small, for everyone else, bigger seemed to be better. Huge radiators, massive water blocks, and fans that looked like they'd be better suited to hovercraft rather than PC internals were everywhere.

Palit though, may have taken the cake. For those of you complaining about the size of graphics cards like the RTX 4080 Super and the RTX 4090, well, try this one on for size:

The Palit booth at Computex 2024, with the biggest GPU I've ever seen. Sort of.

(Image credit: Future)

Yep, those fans were spinning. Of course, this is a display piece rather than a comment on the size of GPUs to come (I hope), but I can think of few things that sum up Computex 2024's cooling displays better than this. Big, bold, and occasionally, downright bizarre.

Now, if only someone had hooked up some fans to me, as I wandered the displays. Wearing jeans and a formal shirt to stalk the floors of the Nangang Exhibition Hall, was, in retrospect, a big mistake. 

Next year, I think I'm going to turn up with some personal cooling hardware of my very own. Water cooled hardware writers. Now that's an innovation I can get behind.

© Future

  • ✇Liliputing
  • MINISFORUM unveils AtomMan X7 Pt is a water-cooled mini PCBrad Linder
    The MINISFORUM AtomMan X7 Pt is a compact desktop computer with an AMD Ryzen 9 8945HS processor, support for up to 64GB of dual-channel DDR5-5600 memory, two M.2 2280 slots for PCIe 4.0 SSDs and I/O features that include dual 2.5 GbE LaN ports, an OCuLink port, and two USB4 ports. It’s also a water-cooled computer, which […] The post MINISFORUM unveils AtomMan X7 Pt is a water-cooled mini PC appeared first on Liliputing.
     

MINISFORUM unveils AtomMan X7 Pt is a water-cooled mini PC

7. Červen 2024 v 17:24

The MINISFORUM AtomMan X7 Pt is a compact desktop computer with an AMD Ryzen 9 8945HS processor, support for up to 64GB of dual-channel DDR5-5600 memory, two M.2 2280 slots for PCIe 4.0 SSDs and I/O features that include dual 2.5 GbE LaN ports, an OCuLink port, and two USB4 ports. It’s also a water-cooled computer, which […]

The post MINISFORUM unveils AtomMan X7 Pt is a water-cooled mini PC appeared first on Liliputing.

  • ✇IEEE Spectrum
  • Five Cool Tech Demos From the ARPA-E SummitEmily Waltz
    Nearly 400 exhibitors representing the boldest energy innovations in the United States came together last week at the annual ARPA-E Energy Innovation Summit. The conference, hosted in Dallas by the U.S. Advanced Research Projects Agency–Energy (ARPA-E), showcased the agency’s bets on early-stage energy technologies that can disrupt the status quo. U.S. Secretary of Energy Jennifer Granholm spoke at the summit. “The people in this room are America’s best hope” in the race to unleash the power of
     

Five Cool Tech Demos From the ARPA-E Summit

31. Květen 2024 v 16:25


Nearly 400 exhibitors representing the boldest energy innovations in the United States came together last week at the annual ARPA-E Energy Innovation Summit. The conference, hosted in Dallas by the U.S. Advanced Research Projects Agency–Energy (ARPA-E), showcased the agency’s bets on early-stage energy technologies that can disrupt the status quo. U.S. Secretary of Energy Jennifer Granholm spoke at the summit. “The people in this room are America’s best hope” in the race to unleash the power of clean energy, she said. “The technologies you create will decide whether we win that race. But no pressure,” she quipped. IEEE Spectrum spent three days meandering the aisles of the showcase. Here are five of our favorite demonstrations.

Gas Li-ion batteries thwart extreme cold

South 8 Technologies demonstrates the cold tolerance of its Li-ion battery by burying it in ice at the 2024 ARPA-E Energy Innovation Summit. Emily Waltz

Made with a liquified gas electrolyte instead of the standard liquid solvent, a new kind of lithium-ion battery that stands up to extreme cold, made by South 8 Technologies in San Diego, won’t freeze until temps drop below –80 °C. That’s a big improvement on conventional Li-ion batteries, which start to degrade when temps reach 0 °C and shut down at about –20 °C. “You lose about half of your range in an electric vehicle if you drive it in the middle of winter in Michigan,” says Cyrus Rustomji, cofounder of South 8. To prove the company’s point, Rustomji and his team set out a bucket of dry ice at nearly –80 °C at their booth at the ARPA-E summit and put flashlights in it—one powered by a South 8 battery and one powered by a conventional Li-ion cell. The latter flashlight went out after about 10 minutes, and South 8’s kept going for the next 15 hours. Rustomji says he expects EV batteries made with South 8’s technology to maintain nearly full range at –40 °C, and gradually degrade in temperatures lower than that.

A shining flashlight sits on dry ice next to a container of battery cells. South 8 Technologies

Conventional Li-ion batteries use liquid solvents, such as ethylene and dimethyl carbonate, as the electrolyte. The electrolyte serves as a medium through which lithium salt moves from one electrode to the other in the battery, shuttling electricity. When it’s cold, the carbonates thicken, which lowers the power of the battery. They can also freeze, which shuts down all conductivity. South 8 swapped out the carbonate for some industrial liquified gases with low freezing points (a recipe the company won’t disclose).

Using liquified gases also reduces fire risk because the gas very quickly evaporates from a damaged battery cell, removing fuel that could burn and cause the battery to catch fire. If a conventional Li-ion battery gets damaged, it can short-circuit and quickly become hot—like over 800 °C hot. This causes the liquid electrolyte to heat adjacent cells and potentially start a fire.

There’s another benefit to this battery, and this one will make EV drivers very happy: It will take only 10 minutes to reach an 80 percent charge in EVs powered by these batteries, Rustomji estimates. That’s because liquified gas has a lower viscosity than carbonate-based electrolytes, which allows the lithium salt to move from one electrode to the other at a faster rate, shortening the time it takes to recharge the battery.

South 8’s latest improvement is a high-voltage cathode that reduces material costs and could enable fast charging down to 5 minutes for a full charge. “We have the world record for a high-voltage, low-temperature cathode,” says Rustomji.

Liquid cooling won’t leak on servers

Chilldyne guarantees that its liquid-cooling system won’t leak even if tubes get hacked in half, as IEEE Spectrum editor Emily Waltz demonstrates at the 2024 ARPA-E Energy Innovation Summit. Emily Waltz

Data centers need serious cooling technologies to keep servers from overheating, and sometimes air-conditioning just isn’t enough. In fact, the latest Blackwell chips from Nvidia require liquid cooling, which is more energy efficient than air. But liquid cooling tends to make data-center operators nervous. “A bomb won’t do as much damage as a leaky liquid-cooling system,” says Steve Harrington, CEO of Chilldyne. His company, based in Carlsbad, Calif., offers liquid cooling that’s guaranteed not to leak, even if the coolant lines get chopped in half. (They aren’t kidding: Chilldyne brought an axe to its demonstration at ARPA-E and let Spectrum try it out. Watch the blue cooling liquid immediately disappear from the tube after it’s chopped.)

Hands holding pliers snip at a tube of liquid coolant in a server. Chilldyne

The system is leakproof because Chilldyne’s negative-pressure system pulls rather than pushes liquid coolant through tubes, like a vacuum. The tubes wind through servers, absorbing heat through cold plates, and return the warmed liquid to tanks in a cooling distribution unit. This unit transfers the heat outside and supplies cooled liquid back to the servers. If a component anywhere in the cooling loop breaks, the liquid is immediately sucked back into the tanks before it can leak. Key to the technology: low-thermal-resistance cold plates attached to each server’s processors, such as the CPUs or GPUs. The cold plates absorb heat by convection, transferring the heat to the coolant tube that runs through it. Chilldyne optimized the cold plate using corkscrew-shaped metal channels, called turbulators, that force water around them “like little tornadoes,” maximizing the heat absorbed, says Harrington. The company developed the cold plate under an ARPA-E grant and is now measuring the energy savings of liquid cooling through an ARPA-E program.

Salvaged mining waste also sequesters CO2

Photo of a woman in a red jacket holding a container. Phoenix Tailings’ senior research scientist Rita Silbernagel explains how mining waste contains useful metals and rare earth elements and can also be used as a place to store carbon dioxide.Emily Waltz

Mining leaves behind piles of waste after the commercially viable material is extracted. This waste, known as tailings, can contain rare earth elements and valuable metals that are too difficult to extract with conventional mining techniques. Phoenix Tailings—a startup based in Woburn, Mass.—extracts metals and rare earth elements from tailings in a process that leaves behind no waste and creates no direct carbon dioxide emissions. The company’s process starts with a hydrometallurgical treatment that separates rare earth elements from the tailings, which contain iron, aluminum, and other common elements. Next the company uses a novel solvent extraction method to separate the rare earth elements from one another and purify the desired element in the form of an oxide. The rare earth oxide then undergoes a molten-salt electrolysis process that converts it into a solid metal form. Phoenix Tailings focuses on extracting neodymium, neodymium-praseodymium alloy, dysprosium, and ferro dysprosium alloy, which are rare earth metals used in permanent magnets for EVs, wind turbines, jet engines, and other applications. The company is evaluating several tailings sites in the United States, including in upstate New York.

The company has also developed a process to extract metals such as nickel, copper, and cobalt from mining tailings while simultaneously sequestering carbon dioxide. The approach involves injecting CO2 into the tailings, where it reacts with minerals, transforming them into carbonates—compounds that contain the carbonate ion, which contains three oxygen atoms and one carbon atom. After the mineral carbonation process, the nickel or other metals are selectively leached from the mixture, yielding high-quality nickel that can be used by EV-battery and stainless-steel industries.

Better still, this whole process, says Rita Silbernagel, senior research scientist at Phoenix Tailings, absorbs more CO2 than it emits.

Hydrokinetic turbines: a new business model

Emrgy adjusts the height of its hydrokinetic turbines at the 2024 ARPA-E Energy Innovation Summit. The company plans to install them in old irrigation channels to generate renewable energy and new revenue streams for rural communities. Emily Waltz

These hydrokinetic turbines run in irrigation channels, generating electricity and revenue for rural communities. Developed by Emrgy in Atlanta, the turbines can change in height and blade pitch based on the flow of the water. The company plans to put them in irrigation channels that were built to bring water from snowmelt in the Rocky Mountains to agricultural areas in the western United States. Emrgy estimates that there are more than 160,000 kilometers of these waterways in the country. The system is aging and losing water, but it’s hard for water districts to justify the cost of repairing them, says Tom Cuthbert, chief technology officer at Emrgy. The company’s solution is to place its hydrokinetic turbines throughout these waterways as a way to generate renewable electricity and pay for upgrades to the irrigation channels.

The concept of placing hydrokinetic turbines in waterways isn’t new, but until recent years, connecting them to the grid wasn’t practical. Emrgy’s timing takes advantage of the groundwork laid by the solar power industry. The company has five pilot projects in the works in the United States and New Zealand. “We found that existing water infrastructure is a massive overlooked real estate segment that is ripe for renewable energy development,” says Emily Morris, CEO and founder of Emrgy.

Pressurized water stores energy deep underground

Photo of blue pipe with a display board. Quidnet Energy brought a wellhead to the 2024 ARPA-E Energy Innovation Summit to demonstrate its geoengineered energy-storage system.Emily Waltz

Quidnet Energy brought a whole wellhead to the ARPA-E summit to demonstrate its underground pumped hydro storage technique. The Houston-based company’s geoengineered system stores energy as pressurized water deep underground. It consists of a surface-level pond, a deep well, an underground reservoir at the end of the well, and a pump system that moves pressurized water from the pond to the underground reservoir and back. The design doesn’t require an elevation change like traditional pumped storage hydropower.

An illustration of how a pressurized pump works. Quidnet’s system consists of a surface-level pond, a deep well, an underground reservoir at the end of the well, and a pump system that moves pressurized water from the pond to the underground reservoir and back.Quidnet Energy

It works like this: Electricity from renewable sources powers a pump that sends water from the surface pond into a wellhead and down a well that’s about 300 meters deep. At the end of the well, the pressure from the pumped water flows into a previously engineered fracture in the rock, creating a reservoir that’s hundreds of meters wide and sits beneath the weight of the whole column of rock above it, says Bunker Hill, vice president of engineering at Quidnet. The wellhead then closes and the water remains under high pressure, keeping energy stored in the reservoir for days if necessary. When electricity is needed, the well is opened, letting the pressurized water run up the same well. Above ground, the water passes through a hydroelectric turbine, generating 2 to 8 megawatts of electricity. The spent water then returns to the surface pond, ready for the next cycle. “The hard part is making sure the underground reservoir doesn’t lose water,” says Hill. To that end, the company developed customized sealing solutions that get injected into the fracture, sealing in the water.

  • ✇XDA
  • Air coolers can handle almost everything, so who are AIO coolers really for?Tanveer Singh
    The air cooling vs. watercooling debate is not new. Ever since liquid AIOs entered the market, PC users have argued fervently for both sides. There was a time when air coolers couldn't hold a candle to the power and efficiency of liquid coolers. But, for over a decade now, we've seen high-performance air coolers go head-to-head with AIOs, with products like Noctua NH-D15 and Thermalrigt Peerless Assassin beating many 240mm and even some 360mm AIOs in performance.
     

Air coolers can handle almost everything, so who are AIO coolers really for?

19. Květen 2024 v 23:00

The air cooling vs. watercooling debate is not new. Ever since liquid AIOs entered the market, PC users have argued fervently for both sides. There was a time when air coolers couldn't hold a candle to the power and efficiency of liquid coolers. But, for over a decade now, we've seen high-performance air coolers go head-to-head with AIOs, with products like Noctua NH-D15 and Thermalrigt Peerless Assassin beating many 240mm and even some 360mm AIOs in performance.

120mm AIO Roundup: Testing Be Quiet, Corsair, Cooler Master, and Enermax models

2. Březen 2024 v 14:00
After testing five 120mm AIOs, I found Be Quiet’s Pure Loop provides the best absolute performance, but Enermax LiqMaxFlo offers a more compelling overall package when noise levels and its unique VRM fan are taken into consideration.

© Tom's Hardware

  • ✇Liliputing
  • Tecno MEGA Mini Gaming G1 is a compact water-cooled PC with discrete graphicsBrad Linder
    The same Chinese company that unveiled a handheld gaming PC this week that uses a pair of glasses for a display also showed off another small gaming computer at Mobile World Congress this week. The Tecno MEGA Mini Gaming G1 is a small form-factor desktop computer with support for up to an Intel Core i9-13900H and NVIDIA […] The post Tecno MEGA Mini Gaming G1 is a compact water-cooled PC with discrete graphics appeared first on Liliputing.
     

Tecno MEGA Mini Gaming G1 is a compact water-cooled PC with discrete graphics

29. Únor 2024 v 18:53

The same Chinese company that unveiled a handheld gaming PC this week that uses a pair of glasses for a display also showed off another small gaming computer at Mobile World Congress this week. The Tecno MEGA Mini Gaming G1 is a small form-factor desktop computer with support for up to an Intel Core i9-13900H and NVIDIA […]

The post Tecno MEGA Mini Gaming G1 is a compact water-cooled PC with discrete graphics appeared first on Liliputing.

Rapid Exchange Cooling With Trapped Ions For Implementation In A Quantum Charge-Coupled Device

A technical paper titled “Rapid exchange cooling with trapped ions” was published by researchers at Georgia Tech Research Institute.

Abstract:

“The trapped-ion quantum charge-coupled device (QCCD) architecture is a leading candidate for advanced quantum information processing. In current QCCD implementations, imperfect ion transport and anomalous heating can excite ion motion during a calculation. To counteract this, intermediate cooling is necessary to maintain high-fidelity gate performance. Cooling the computational ions sympathetically with ions of another species, a commonly employed strategy, creates a significant runtime bottleneck. Here, we demonstrate a different approach we call exchange cooling. Unlike sympathetic cooling, exchange cooling does not require trapping two different atomic species. The protocol introduces a bank of “coolant” ions which are repeatedly laser cooled. A computational ion can then be cooled by transporting a coolant ion into its proximity. We test this concept experimentally with two 40Ca+ ions, executing the necessary transport in 107 μs, an order of magnitude faster than typical sympathetic cooling durations. We remove over 96%, and as many as 102(5) quanta, of axial motional energy from the computational ion. We verify that re-cooling the coolant ion does not decohere the computational ion. This approach validates the feasibility of a single-species QCCD processor, capable of fast quantum simulation and computation.”

Find the technical paper here. Published February 2024.  A related news release, including a video, can be found here.

Fallek, S.D., Sandhu, V.S., McGill, R.A. et al. Rapid exchange cooling with trapped ions. Nat Commun 15, 1089 (2024). https://doi.org/10.1038/s41467-024-45232-z

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Enormous amounts of money have been invested into quantum computing, but so far it has not surpassed conventional computers. When will that change?

The post Rapid Exchange Cooling With Trapped Ions For Implementation In A Quantum Charge-Coupled Device appeared first on Semiconductor Engineering.

Arctic's Liquid Freezer III coolers could void your CPU warranty — require a custom contact frame for Intel chips

20. Únor 2024 v 22:11
Arctic just released its new Liquid Freezer III lineup of AIOs featuring custom mounting mechanisms for Intel and AMD CPUs. Arctic is relying heavily on these mounts and is not offering default mounting brackets for LGA 1700, AM4 or AM5 as a backup.

© Arctic

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