trappedslider
Legend
Somedays with my asthma and other health issues the environment is my enemy. 
Pineapple Express: Someone Is Wrong on the Internet?
- Thread starter Snarf Zagyg
- Start date
Warpiglet-7
Lord of the depths
My family does not like the heat.
We vacation in the north.
And are always horrified when there is no AC and are sure to now inquire about central AC of our rentals.
Also I decided to try the environmentally friendly option mentioned upthread. I pored a bunch of cold beer in a bucket And turn on a fan.
Waiting to see if the dogs start walking sideways and the wife finds me tolerable. Will let you know how the swamp bar works in a little bit. Even the snake will be slithering this way and that!
We vacation in the north.
And are always horrified when there is no AC and are sure to now inquire about central AC of our rentals.
Also I decided to try the environmentally friendly option mentioned upthread. I pored a bunch of cold beer in a bucket And turn on a fan.
Waiting to see if the dogs start walking sideways and the wife finds me tolerable. Will let you know how the swamp bar works in a little bit. Even the snake will be slithering this way and that!
Evaporative coolers do not work on the principle of direct heat exchange, but by using the heat in the air to evaporate water. This lowers the temperature in the air but raises the humidity, largely keeping the air at the same relative energy level. The wet-bulb temperature does not change in this process.The chart is pretty cool, showing how humidity affects the heat exchange rate across an evaporative cooler...but notice it doesn't show the time required, the volume of air being cooled, the size of the fan, or the energy input you need.
Even in ideal conditions, you won't get 8000W worth of cooling from a 50W fan.
Depending on the water temperature the resulting air temperature may be a little different from this due to conduction. If the air is passing by ice directly then it will also be causing a phase change of the ice, more heat from the air. This is why blowing air across ice can be so effective.
The problem with evaporative coolers, past the simple small fan and ice block solution, is that they raise the humidity in a space quickly. Because of this you would need to open up your house to the outside air, it is nice to be in the path of this air but if you are using a simple portable one like I am other parts of your house are going to be nearer to outside temperature.
The benefit of them is that they are incredibly energy efficient. This is why they are used as the go to solution for industry and datacenters. Most datacenters use evaporative cooling directly because it is so efficient, that is a lot of heat getting carried away. The same principle applies to cooling towers, most large office buildings use them for cooling their chillers, as do many industries and power plants, the iconic towers people identify nuclear power plant with are cooling towers.
To put it into numbers, referencing Evapco, the smallest cooling tower they have provides 113 cooling tons (a unit of cooling) with a 5 HP motor. You would also need to pump the water, needing another HP or so. Converting to watts that would be a 6HP = 4.5 kW and 113ton = 397 kW for a ratio of 0.011. Which is more than your ratio of 0.006. So maybe if you use a 100W fan you can get your 8,000W of cooling.*
I use a portable evaporative cooler for my house because I live in Oregon and there are only a few days a year where it gets so warm that I would need AC. I don't need it 72 degF every day of the year.**
*I am an HVAC controls engineer, it is literally my job to be pedantic about this sort of thing.
**I could probably have more sympathy than I do for office workers complaining about the temperature being above 74 degF, but I don't.
^2
I’ve been saying that drivers have become feral since shortly after the large-scale lockdowns started ending.Purely anecdotal, but I noticed that as well. But I live in NJ, so interesting driving is just par for the course.
overgeeked
Open-World Sandbox
If you want to really blow your mind, read up on yakhchāl, desert structures that make and store ice. They have been in use since 400 BCE.
en.wikipedia.org
Yakhchāl - Wikipedia
Desert dwelling dwarves in one of my homebrews have them.If you want to really blow your mind, read up on yakhchāl, desert structures that make and store ice. They have been in use since 400 BCE.
Yakhchāl - Wikipedia
I believe the data shows it happened while the lockdowns were in place - you can drive like an idiot when there's nobody else on the road.
Bedrockgames
I post in the voice of Christopher Walken
It was definitely way worse during the shutdowns. I still see plenty of nonsense I rarely saw prior to the shutdowns, but not at the same level. it does seem to depend somewhat on the town your in as well. In the city I lived in, the roads were pretty chaotic for a while after the shutdowns ended. I moved about a year ago though so I am not sure what the present state of them happens to. The most striking issue for me was people running right through red lights at high speed. This happened so much, at one point, just after I almost got T-Boned, another drive pulled up to me, rolled down her window and had a whole conversation about how nuts the roads had become. The other thing I saw, and still see to an extent are off road vehicles driving crazy and I saw the aftermath of a number of fatal accidents involving them (I've seen motorcycle accidents before but this was getting to the point where I was just becoming accustomed to seeing the shattered debris of a dirt bike after some guy plowed into a pole or smashed into a car. It was disturbingly regular, and more troubling because most of them seemed very young)
Similar Threads
