Earlier quoted context omitted.
I don't really see anything harvesting the wind aside from us?
Plants do it all the time; the basic plant strategies for colonizing new territory are floating on the wind, floating on the water, and fruit.
Engineers harvest clean, continuous energy from air
21–30 of 55 posts
Re: Engineers harvest clean, continuous energy from air
#22Despite being a chemist, I don’t fully follow this, though it seems legitimate. But if there’s that much latent energy, I really have to think that there could be some kind of atmospheric, “local ecological” side effect on microorganisms or “something” at scale. It’s not like nature lets massive amounts of energy go completely unused.
Completely? No. But consider how much of a given square meter of sunlight on the ocean is photosynthesized by bacteria and algae, and how much becomes waste heat immediately.
Re: Engineers harvest clean, continuous energy from air
#23Something similar happened when I put a dehumidifier in my bedroom. Basically, I noticed that the room was heating significantly when I turned it on. Way faster than what you should expect from its power usage (about 250W avg.). Correct me if I'm wrong, but by converting air moisture to liquid water using a compressor, the dehumidifier is releasing the latent energy of water vapor (0.627Wh/L) in addition to its own e…
Re: Engineers harvest clean, continuous energy from air
#24Something similar happened when I put a dehumidifier in my bedroom. Basically, I noticed that the room was heating significantly when I turned it on. Way faster than what you should expect from its power usage (about 250W avg.). Correct me if I'm wrong, but by converting air moisture to liquid water using a compressor, the dehumidifier is releasing the latent energy of water vapor (0.627Wh/L) in addition to its own e…
Re: Engineers harvest clean, continuous energy from air
#25Something similar happened when I put a dehumidifier in my bedroom. Basically, I noticed that the room was heating significantly when I turned it on. Way faster than what you should expect from its power usage (about 250W avg.). Correct me if I'm wrong, but by converting air moisture to liquid water using a compressor, the dehumidifier is releasing the latent energy of water vapor (0.627Wh/L) in addition to its own e…
Re: Engineers harvest clean, continuous energy from air
#26Something similar happened when I put a dehumidifier in my bedroom. Basically, I noticed that the room was heating significantly when I turned it on. Way faster than what you should expect from its power usage (about 250W avg.). Correct me if I'm wrong, but by converting air moisture to liquid water using a compressor, the dehumidifier is releasing the latent energy of water vapor (0.627Wh/L) in addition to its own e…
Re: Engineers harvest clean, continuous energy from air
#27Earlier quoted context omitted.
> more than a kilowatt (per hour?) Not sure what you mean, Watt already has a unit of time in it.
The paper just says "an estimated energy density of >1 kW/m^2"
Re: Engineers harvest clean, continuous energy from air
#28Something similar happened when I put a dehumidifier in my bedroom. Basically, I noticed that the room was heating significantly when I turned it on. Way faster than what you should expect from its power usage (about 250W avg.). Correct me if I'm wrong, but by converting air moisture to liquid water using a compressor, the dehumidifier is releasing the latent energy of water vapor (0.627Wh/L) in addition to its own e…
doesn't humid air "feel" warmer, though?
Re: Engineers harvest clean, continuous energy from air
#29Something similar happened when I put a dehumidifier in my bedroom. Basically, I noticed that the room was heating significantly when I turned it on. Way faster than what you should expect from its power usage (about 250W avg.). Correct me if I'm wrong, but by converting air moisture to liquid water using a compressor, the dehumidifier is releasing the latent energy of water vapor (0.627Wh/L) in addition to its own e…
The latent heat does get released, but the question is, where does it go?
In an air conditioner, which also condenses water vapor from the air, the heat released goes into the refrigerant, which means it ultimately gets put into the atmosphere outside from the condenser.
A dehumidifier is basically an air conditioner without an outside unit, so the heat from the condensation of water vapor goes into the refrigerant, but then gets put into the room from the condenser, instead of outside.