Recent content by anikad

I agree with you on that design!:smile: What my question was essentially: WHAT physics equation relates the following 4 variables. Initial T ; Initial RH ; Final T ; Final RH I believe there's ought to be an equation for this simple relation, since we already know that: Final RH> initial RH &...

Let's say the hot air reached 40°C 70% RH levels (after absorbing lots of moisture from the wheel) . And we bring it in contact with ambient air at 20°C. Is there a physics equation that can tell whether that hot stream of air when brought to contact with a 20°C ambient air- can reach 100% RH...

Thank you! Now you really appear to be my accomplice:biggrin:. So the engineering analysis of this system comes down to this : The greater the temperature difference between hot air & cooler ambient air, the quicker the air picks up enough moisture to reach 100% humidity- to be brought to a...

Hey hutchphd, this is not an attempt to defy the laws of physics. Perhaps, you didn't understood the mechanism of the device correctly? If you can prove which law is being defied in the device, I'd take account.:smile:

I just did a little reading on dew point. My intuition was: if we trap heat in a closed system, and continue saturating it with moisture- then we let the highly saturated air (that can't hold any more water vapors) come in contact with the wall of the system that is slightly cooler because it's...

Thank you for your input!:smile: This is still confusing to me. The condensate forms when there is a temperature difference ( for eg: ambient temperature on outside, & high temperature on inner closed area) . What does the dew point has anything to do with condensate? Can you please elaborate...

Thank you . That's exactly what I've picked up from the original design. I'm working on a design based upon "batch processing" to prevent the highly inefficient water pickup of internal air.

Thanks for sharing that! If I understand correctly, these devices will not produce condensate at night , since there's no solar power to heat the turntable dessicant (and thus no temperature difference) ?

That certainly looks a better design than Google's. Can you confirm this: Will the MOF material adsorb more moisture per unit time when it's dry & less when it's getting wet(er)? Or the rate of adsorption & desorption doesn't depend on the amount of moisture in the MOF dessicant?

Thanks for the details. If I'm correct, the following dependencies hold true as relating to condensate output: 1) The hotter the inside air blowing- the more it can extract moisture & the more the yield. 2) The more rounds of heat exchange process takes place per unit time, the more the yield...

Hi Tom, Yes, that's my exact goal to build this system. I am just hoping to get key physical relations behind the heat exchanger mechanism of the device that's in accordance with the laws of physics. (so that I know what to focus on to increase the yield of condensate output) But no luck so...

Quite interesting! Can you explain a quick physics mechanism as to how pressure reduction condense water or share a suitable link on the web? & is it a more (or less) efficient mechanism to condense water than the temperature drop / temperature difference method we're discussing from the device...

Thank you! Can you summarize your conclusion as related to this device here? I'm arguably more of a systems design specialist than an engineer:smile:

Hi, thanks for your input. The device design is from Google (Alphabet) which they open-sourced recently. For the hot air input, the ambient air is just sucked in from outside the device. For the cool air input, the ambient air is again sucked in via a fan at the bottom.

Thank you for your input. I disagree respectfully:smile:, because if I understood the laws of physics correctly, a hot stream of air combined with ambient fan should create condensation. Can any other fellow member who's well versed in the topic please prove or disprove my point?