Recent content by willdo

1/In your suggested system, unless i am mistaken (a clear possibility) you collect the condensed water back at the level where you started and that goes against my aim because i would then need some form of energy to move it. 2/DMS in particular shouldn't prove to be too much of an issue since...

Originally, i was hoping to let the newly-fresh water obtained from Solarthermal desalination in the form of vapor rise naturally from sea level to a nearby cliff where it would be allowed to condense and then use this higher position to distribute this water to the surrounding area without any...

Well, i was concerned if the "tubing" (i need a better word) is cold then the vapor will turn back to water and fall before it reaches the desired height thus the need for a material that either doesn't allow heat to escape or allows solar heat to compensate the loss in temperature...

I don't know what "PE" is...did i mention I'm a noob? I was talking about Solarthermal desalination so, i already have vapor,what other energy source do i require? the set up implies that the "tubing" itself is also being heated by the sun so there shouldn't be that much loss of steam...

Hi all, Yet another noob question from me... I been thinking of Solarthermal desalination plant lately but I'm surprised that no plan seems to take into account the possibility of letting the vapor rise to a much higher level, thus creating a potential energy source. Is there something...

I thought about it and i fail to see what bothers you. For one thing, Hydrogen is not readily available in this form at ground level, it would go up...and that is the energy source you're looking for: As you yourself explained to me earlier the floatability (buyancy?) potential of 1m3 of...

I thought air was getting thinner in altitude, shouldn't it also be lighter?

Ah! Could this be the answer to the following? So the numbers you proposed earlier (0.5MJ produced from a 50km drop) were taking this into account and keeping the object in a constant accelerating mode?! If so, it's a little disapointing that the production result is so far below "the cost"...

That's funny i wasn't counting it for the same reason (plus i woudn't know how)

Isn't that what terminal velocity is? (sorry i just learned the name)

The following is a quote from wikipédia: Based on wind resistance, for example, the terminal velocity of a skydiver in a belly-to-earth (i.e., face down) free-fall position is about 195 km/h (122 mph or 54 m/s).[2] This velocity is the asymptotic limiting value of the acceleration process...

Edit2: Ok, i thought about it again and...what's stopping me from harnessing the energy produced more than once? (in theory of course i know it would be impractical) exemple: if a weight attains it's maximum level of kinetic energy after 1000 metres (a wild guess, i have no clue what the real...

I must say, this is great, this question has bothered me for a while, thank you all for making it easy to understand! Just to make sure, how would that change if we started in water, say 10km deep? (assuming no engineering issue)

Ok, i just read the basics of "conservation of energy" yet, wether i drop a weight from 1 metre or 10 metres the energy produced is not the same.I am not knowledgeable enough to explain it but in Hydroelectricity the height of the waterfall matters very much...So, does it mean that the weight...

What altitude should a weight drop from to produce enough energy to electrolyse the hydrogen needed to lift it? Please keep it simple, i just want to know if it would work in theory.