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A look inside a cooling tower. The white cloud rising from the tower is not smoke: it’s harmless water vapor formed when warm, moist air meets cooler outside air, similar to seeing your breath on a cold day.

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Massimo

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145,515 просмотров • 7 месяцев назад •via X (Twitter)

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Satya Nadella: Microsoft’s latest Wisconsin AI data center keeps yearly water consumption no higher than that of 1 local restaurant. "The cooling loop is filled once and the data centre can operate effectively with zero water consumption. Daily water usage across a year is roughly equivalent to what a single restaurant would use" The mechanism is mainly about replacing evaporative cooling with closed-loop direct-to-chip liquid cooling, so water moves like coolant inside a sealed machine rather than being boiled off into the air. Hot GB200-class AI racks produce too much heat for normal air cooling, so cold liquid is pushed through pipes into the servers and across metal cold plates touching the hottest chips. The liquid enters the rack cool, absorbs heat from the chips through cold plates, then exits the rack at a higher temperature and carries that heat through pipes to a huge cooling system outside the compute floor. Microsoft says Fairwater sends that hot water to cooling “fins” beside the datacenter, where 172 20-foot fans blow air across the fins and dump the heat into the outside air. The important detail is that the air cools the water through metal surfaces, so the water does not need to evaporate the way many older datacenters use cooling towers. The cooled liquid then returns to the servers, repeats the loop, and keeps absorbing heat from the chips. In older data centers, heat is often removed partly through cooling towers. Hot water meets moving air, some water evaporates, and that phase change carries heat away. Effective, but it consumes fresh water continuously. But Firwater is a closed loop because the same coolant keeps circulating through sealed pipes: it absorbs heat from the chips, releases that heat through radiator-like fins, then flows back to the chips again. For Wisconsin Fairwater, Microsoft says more than 90% of the facility uses closed-loop liquid cooling, while the remaining portion uses outside air and switches to water only on the hottest days. ---- From "Microsoft" YouTube channel, (link in comment)
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Satya Nadella: Microsoft’s latest Wisconsin AI data center keeps yearly water consumption no higher than that of 1 local restaurant. "The cooling loop is filled once and the data centre can operate effectively with zero water consumption. Daily water usage across a year is roughly equivalent to what a single restaurant would use" The mechanism is mainly about replacing evaporative cooling with closed-loop direct-to-chip liquid cooling, so water moves like coolant inside a sealed machine rather than being boiled off into the air. Hot GB200-class AI racks produce too much heat for normal air cooling, so cold liquid is pushed through pipes into the servers and across metal cold plates touching the hottest chips. The liquid enters the rack cool, absorbs heat from the chips through cold plates, then exits the rack at a higher temperature and carries that heat through pipes to a huge cooling system outside the compute floor. Microsoft says Fairwater sends that hot water to cooling “fins” beside the datacenter, where 172 20-foot fans blow air across the fins and dump the heat into the outside air. The important detail is that the air cools the water through metal surfaces, so the water does not need to evaporate the way many older datacenters use cooling towers. The cooled liquid then returns to the servers, repeats the loop, and keeps absorbing heat from the chips. In older data centers, heat is often removed partly through cooling towers. Hot water meets moving air, some water evaporates, and that phase change carries heat away. Effective, but it consumes fresh water continuously. But Firwater is a closed loop because the same coolant keeps circulating through sealed pipes: it absorbs heat from the chips, releases that heat through radiator-like fins, then flows back to the chips again. For Wisconsin Fairwater, Microsoft says more than 90% of the facility uses closed-loop liquid cooling, while the remaining portion uses outside air and switches to water only on the hottest days. ---- From "Microsoft" YouTube channel, (link in comment)

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When the air temperature drops near freezing, the water vapor or dew on grass begins to cool. The water molecules closest to the solid surface of the grass lose energy faster because the solid draws heat away (this is called conductive cooling).
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When the air temperature drops near freezing, the water vapor or dew on grass begins to cool. The water molecules closest to the solid surface of the grass lose energy faster because the solid draws heat away (this is called conductive cooling).

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Chicago River A video showed what looked like smoke rising over the water in Chicago. It’s actually sea smoke, also called steam fog, caused by extremely cold air moving over warmer water. Have you ever seen this in Chicago before? 🎥 Clip by sukriti on TT

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Today only, Toxic Town billboards are using real time data to show what air quality is like across the country. If the air quality is “good” you will see a full poster for the series. If the air quality is “poor”, we are sacrificing our billboards to be covered in a cloud of white smoke. Just because you can’t see it, doesn’t mean it’s not happening.

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Before Doug Ford and employers ordered people back to the office, on a clear day you could see downtown Toronto and the CN Tower from Ajax. Not so anymore. Look at that haze. That's cancer causing air pollution we're all breathing in just so your boss can see you at your desk.

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A nuclear cooling tower crashed down in Hartsville, Tennessee, on Thursday in a controlled implosion. The 540-foot tower was built in the 1970s as part of the Hartsville Nuclear Plant Project, which was discontinued. The Tennessee Valley Authority, the nation’s largest provider of public power, said the concrete from the cooling tower will be ground into smaller pieces and spread out to create a gravel lot on the site. The steel will also be recycled, TVA said.

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No damages to the Florence Ya’ll Water tower, crews say. The power is out and the pump feeding the tower has stopped working. Gravity is letting the water out as it’s designed to do. A worker is trying to shut off the valve for now until the power returns. WLWT

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Running An Air Conditioner n Ceiling Fan Simultaneously whose rooftop is directly exposed to The Sun, is Like Adding Ice In a Jug of Water, Tht is Placed on a Flame. When Our Ac is Cooling, the Ceiling Fan is Bringing down the heat from the rooftop. Avoid Running of a Ceiling Fan

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On air tonight at 6.45 on BBC1. Commentary position is down there by the Tower. Taking waterproofs.

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An anvil cloud (scientifically known as Cumulonimbus incus) is the flat, spreading top of a mature thunderstorm cloud. It forms when warm air rises rapidly, hits the stratosphere (a natural ceiling), and spreads horizontally. This is what it looks like from an airliner.

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🚨#BREAKING: Watch as lightning strikes a water tower causing it to leak as large amounts of water can be seen gushing out 📌#Stallings | #NorthCarolina Watch this dramatic video capturing the moment a lightning strike hit a water tower in Stallings, Union County, North Carolina, causing a massive cascade of water to pour from the structure. Witnesses nearby described hearing a deafening bang followed by a blinding flash of light. Moments later, they noticed large amounts of water gushing from the top of the tower. At first, some thought the lightning might have struck a fire hydrant, but it soon became clear that the powerful bolt had hit the water tower itself, causing damage. As the impact created a rupture near the top of the tower, leading to a continuous and forceful flow of water spilling down. Emergency crews and repair teams are on the scene, working to control the leakage and assess the extent of the damage. Fortunately, no injuries have been reported

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After a very warm week, we are seeing a change this weekend as colder air arrives from the north 👇

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A massive fire has been reported at the Dos Bocas refinery in Tabasco, Mexico, with workers saying a tower at the coking plant is involved and heavy smoke rising. Resist Wire

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