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Cake day: December 4th, 2024

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  • They use adiabatic coolers to minimize electrical cost for cooling and maximize cooling capacity. The water isn’t directly used as the cooling fluid. It’s just used to provide evaporative cooling to boost the efficiency of a conventional refrigeration system. I also suspect that many of them are starting to switch to CO2 based refrigeration systems which heavily benefit from adiabatic gas coolers due to the low critical temp of CO2. Without an adiabatic cooler the efficiency of a CO2 based system starts dropping heavily when the ambient temp gets much above 80F.

    They could acheive the same results without using water, however their refrigeration systems would need larger gas coolers which would increase their electricity usage.




  • A lot of units now a days have a plastic coating on the discharge gas pipe which mostly prevents the corrosion issue. I am a refrigeration mechanic and while the condensate pan is one of the first areas I check for leaks, it also isn’t the most common area. It probably ranks in third place for frequencybof leaks on reach in units. I probably get 10x more leaks right in the evap coils. People just tend to notice the condensate pan leaks more because they’re on the high pressure side of the system so they’re going to be quick and relatively dramatic. Evap leaks can fly under the radar for years because they’re usually small and only result in gradually worsening performance.

    There are also alternative condensate pan designs which use sheets of a wicking felt like material standing up in the condensate pan to increase the surface area for evaporation. That plus the warm air from the condenser fan can often work just as well as the discharge gas heated pans without the corosion issues. The reason that more companies don’t do that is because using the discharge gas for evaporating condensation also means that you’re using the condensation to precool the discharge gas so it slightly boosts the efficiency of the unit.







  • Good thing it’s surrounded by water.

    Joking aside, if it didn’t burst into flames right away then it’s probably fine on the acetylene front. The main hazard of acetylene is just the insane flamability (explosive limits 2.5-100%). But it’s also very soluble in water and isn’t really harmful to the environment on it’s own. There are actually bacteria that can use it as a food source. So the acetylene is just going to be quickly disapated by the wind and disolved into the ocean where it’ll be broken down into harmless products.

    The bigger concern is that, with that much calcium carbide reacting, there was likely fairly substantial amounts of phosphine and arsine produced as well. Those are both pretty damn toxic. Normally the amount of both of those produced in a calcium carbide reaction is fairly small but when there are several shipping containers of the stuff reacting then those normally trace contaminants are likely going to actually amount to something.










  • Part of the whole multipurpose craze is also just that few people can afford to own multiple vehicles anymore. My dad owns a little hatchback for a daily driver and a fuckoff big pickup for when hauling needs to be done but he can only do that because he knows enough about vehicles to buy and fix cheap old piles of crap and keep them going. The average person doesn’t know how to do that so they need to buy newer vehicles and those vehicles are heniously expensive now so buying one daily driver is enough of a struggle let alone buying a seperate work vehicle. If they need to both take the kids to soccer practice and haul things then I can see how someone might think a suburbitank is a good idea.

    But like you said, there are also a lot of people who own these massive trucks but don’t need them. If the paint on the truck is unblemished or there isn’t a spot of dirt on it then that driver can go fuck themselves because clearly the only utility that vehicle is serving is as an ego prosthetic. Real working vehicles get beat up. Seeing a clean spotless truck is like seeing a mechanic without a spot of dirt on them; they both clearly aren’t working.