RawThinkTank
03-25-04, 09:01 AM
Don’t waste energy by putting only one generator at the bottom of dams, instead extend the pipes coming out as long as you can, may be till end of river. And install smaller electric generators at regular intervals inside the pipes such that the pressure the for next generator is equal to the first one. Try not to lose the pressure at entire length of the pipeline, as the river is always going down water has no choice but to flow down.
The pressure generated at the bottom dam is due to the height of the water in the reservoir and hence when the pipe reaches down the river, after the same height we get the same pressure (more but not less as now the height is twice and so on ….).
Now imagine how much power can be produced at the entire length of rivers. For getting water supply, higher the dam the better the total electric output, so we can instantly use this technique for all dams that are far away from cities hence plan new cities far away from dams or vice-versa and get that power U have been wasting all the time.
Check this out http://www.sciforums.com/showthread.php?t=34298
Maharajah
03-25-04, 09:57 AM
Don’t waste energy by putting a generator only at the bottom of dams, instead extend the pipes coming out as long as you, may be till end of river. And install smaller electric generators at regular intervals. Try not to lose the pressure any where else, now imagine how much power can be produced at the entire length of rivers. For getting water supply, higher the dam the better the total electric output so plan and place all cities far from dams and get that power U have been wasting all the time.
As water falls, it accelerates and gains more energy. When it hits a turbine, the energy is collected by spinning it. This decelerates the water falling causing it to lose energy. It is smarter to only collect this once, at the bottom, because you want it to have the most energy possible when it hits the turbine. The only way you would want more then 1 is if the fall was large enough for the water to fall from the first turbine and reach terminal velocity again before hitting the bottom.
John Connellan
03-25-04, 03:04 PM
The only way you would want more then 1 is if the fall was large enough for the water to fall from the first turbine and reach terminal velocity again before hitting the bottom.
Thats probably what he is talking about and if it is then its a good idea eh?! Does this multiple energy collection happen at any fall-powered hydro power stations around the world?
Maharajah
03-25-04, 04:42 PM
Thats probably what he is talking about and if it is then its a good idea eh?! Does this multiple energy collection happen at any fall-powered hydro power stations around the world?
Well I'm not completely positive, but I would think the falls would have to extremely high for water to fall, hit terminal velocity, come to almost a complete stop, then reach terminal velocity again. I do not know of any falls like this, or any dams that take advantage of this factor.
steponit
03-30-04, 02:10 PM
It has occured to me that another way of coserving a lot of energy,is to start pumping water from a sewage well or any drainage area before it gets to the bottom of such reservoir.An abstract on this subject is to devise a system in which the reservoir fills from the top down. In this way it would have to be pumped a lesser height to be evacuated from the reservoir. There are hundreds of thousands of such wet wells through out the country.
phil scalcione
04-02-04, 01:16 PM
Every dam empties into a river which continues to flow downstream; as such there is still energy to be extracted from the lower elevation downstream. Placing a pipe at the discharge port of the hydro motor and extending it downstream would create a suction pressure at the discharge port. This would add to the power generated by the freefall by also including suction power moving this discharge even faster. A flow through any vessel propelled with a positive charge , would be sped up if suction were applied to the discharge side.
for the water to have the same, or approx the same energy, the next generator would need to be lower than the first generator equal to the height of the water above the first generator. maybe.
:-)