Weird But True: You can Air Condition a Computer

In this blog segment, we’re going to look at all the weird things you don’t expect to see in the HVAC Industry. Now, you might be expecting us to post something like a hand cranked air conditioner or maybe some weird sound-based chilling system. Well, not today! Today we’re going to talk about how you can air-condition a computer, because no one else in our circle of friends and competitors has!   WHY WOULD YOU DO THAT? For computers, like many, many machines, cooling is essential. The little bits of silicon in your computer can run up to about 100 degrees Celsius before they start to lose performance. That’s about the redline on most CPUs. When it gets that hot, they start to throttle back and lose performance. You could go from blazing performance to a complete crawl until the system has cooled down. It’s just like if you got in your car, hit some infinitely straight road, had an infinite fuel supply, and floored it. At some point, the engine’s going to overheat because it wasn’t designed to run at max power for days on end. Your computer manages its own throttle, so at a point, it just says ‘no’. Most computers in your office and home aren’t going to see those temperatures and work loads. Like all things however, there are people who do hit that problem. There are people who scoff at the thought of a Mustang […]

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Getting the Right Coils

To an extent, every HVAC installation is a custom installation. We use off the shelf parts, but the exact configuration is always going to depend on the installation site and the end user. The budget, electrical connections, desired efficiency, and so much more all decide what the end system will be. Every part has a role to play, and any mismatched parts will cause problems across the system.   Matching Your Coils Your evaporator and condenser coils need to match. Every coil has a different set of ratings, different capacities, and different applications. You couldn’t use a condenser coil from a residential unit in an industrial system. Sure, we can make it fit with a ton of adapters, but the pressures and flow rates would probably make it blow up. The same issues exist at all scales, but with varying consequences.   Why Wouldn’t They Match? Your contractor will examine your facility and determine the appropriate rating. You might need a four, five, or even ten ton unit. That all depends on the circumstances of the installation. This is also where contractors and manufacturers disagree about how a cooling system should be designed. This disagreement can lead to significant consequences for your business. The official position of most, if not all manufacturers is that coils need to match. If your facility needs a 5 ton condenser, then it needs a 5 ton evaporator. The numbers need to match across the […]

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The Importance of Keeping Cool

Today we’re going to go off the well beaten path of technology and venture into the much less intuitive fields of comfort and psychology. Just how valuable is air conditioning to the customers in your store? How valuable is it to your workers? And most importantly, how valuable is it to your bottom line?   Customer Impact A cool environment has a lot of impacts on your customers, especially in the choking heat of summer. On the most basic level, a comfortable customer is a happy customer. If they can walk through your store and not be dripping wet, they’re that much more likely to engage in impulse buys or accept upsells and cross-sells. This brings with it secondary bonuses: AC attracts customers AC can keep them in the store longer AC can cause more frequent visits A Controlled Environment prolongs the shelf life of your products This all stems from our desire to be comfortable. We rarely engage in activities that aren’t pleasant. No one skips to the IRS with joy to pay their taxes. Very few people are excited to see the dentist to have a tooth pulled or go to the hospital for a CAT Scan. You don’t want your store to be like that. The hotter and more humid your store is in the summer months, the fewer customers you’ll see. They’ll dread setting foot in the door.   Employee Impact If you think your customers […]

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The Long and Storied History of Getting Cold

When you think of air conditioning, I bet you think of Willis Carrier inventing the Air Conditioner 115 years ago, don’t you? It turns out, like many things, people have been chilling since long before 1902. This raises the big question: “How do you get cool without a compressor, a heat exchanger, and a whole lotta watts?” People are clever and crafty about manipulating the world to do their bidding.   Ancient Egypt The Egyptians are believed to have been one of the first, if not the first, to use Evaporative Cooling. Paintings dating back to 2500 BC show royalty being fanned in front of jars of water. Commoners would have put wet reeds in their windows and let the wind do their cooling. Cold air would blow in the window and be slightly chilled by the cold water on the reeds. The whole concept here relies on water’s amazing thermal properties. We’ve mentioned some of them before. In this case, it is the Enthalpy of Vaporization. When water changes states, it takes a lot of energy with it. In a hot, dry desert environment, the lack of humid air makes it easy for water to make that phase change. Any open water source will readily change states into a vapor at its surface. With a cold breeze, whether natural or artificial, more air is exposed to the water. More cool air is exposed to the room’s occupants. More heat […]

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