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  • FYI for those using evaporative coolers on this hot day.
    Most of you probably know this but for those that don't: on hot days such as today evap can be next to useless but for those that don't know: Close all of your blinds and open all the windows on the opposite side of the house from wherever the hot wind is coming Open them about 4-6 inches You should hear a low, windy whistle when done properly Evaps work on negative pressure so while they're
  • Why is data center cooling pretty much the same across the country - Reddit
    Evaporative cooling (swamp cooling) is used by almost all of the large data center operators in the US The most efficient DC's I've ever been in use a combination of five technologies (chilled water, indirect evaporative, direct evaporative, outside air, and refrigeration (standard DX cooling) in a SINGLE air handling unit
  • Anyone have experience with evaporative cooling in their home . . . - Reddit
    Anyone have experience with evaporative cooling in their home? My wife and I, after 12 years of apt living in Boulder are finally upgrading to a home A lot of the older homes we have been touring have evaporative cooling We don't know squat about it, and researching it doesn't really give a good feel for what it's like, or if it's even effective
  • ELI5: Why do datacenters continuously use more water instead of . . .
    Evaporative cooling is the most cost-efficient way to cool a facility It takes a lot of energy for water to go from (hot) liquid to gas, which means that a small amount of water being evaporated gets you a lot of cooling capacity
  • Do portable evaporative coolers work? : r Albuquerque - Reddit
    I'm trying to avoid the expense of cooling my whole house at night just to keep the one room comfortable I like the idea of cooling and humidifying the bedroom, so portable swamp coolers seem like a good idea, and the cost is reasonable The room is about 400 square feet if that matters What's your experience with portable evaporative coolers
  • do evap coolers not work above a certain temp outside?
    The ideal operating humidity for evaporative cooling is in the low 20s - this changes very slightly depending on atmospheric pressure (which is lower at altitude) The higher the Relative Humidity (RH) is, the less efficient a swamp cooler will be When you approach 60% RH in your home, evaporative cooling does very little to help with the heat
  • Low tech Adiabatic Urban Cooling : r engineering - Reddit
    Evaporative cooling is an adiabatic process It's like filling a perfectly insulated tank of dry air halfway up with water The tank will cool as the system approaches vapor-liquid equilibrium
  • ELI5: evaporative cooling : r explainlikeimfive - Reddit
    I understand that phase change from liquid to gas absorbs energy But why does this happen so spontaneously and sufficiently quickly to the extent of providing cooling? e g it doesn't seem to make too much sense (to my ignorant brain) when we are cooled by our sweat vaporizing at "fairly low" temperatures
  • Evaporative cooling excessive condensation. : r melbourne - Reddit
    Evaporative cooling works best when humidity is 30% or below, they’re ok up to 50% but once humidity is higher than that they become ineffective
  • Adding a filter to an evaporative cooler. : r HomeImprovement
    Adding a filter to an evaporative cooler I have a roof mounted evaporative cooler There wasn't a filter in between the fan and the outlet into our living room so I decided to add one The duct outlet happens to perfectly fit a standard 24x24 filter so it worked out well





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