The maximum height of a siphon with water is about 10m, depending on air pressure and temperature. So it will not work. Pumping is necessary to keep the pressure at the highest point above the vapour pressure of water at ambient temperature. And as pointed out, for any significant flow over the distances involved, frictional losses mean that the energy required to maintain this pressure are so great that alternatives (such as desalination) look more attractive.
John
John
JDNSW
1986 110 County 3.9 diesel
1970 2a 109 2.25 petrol
I think the non-feasability arguement is a load of BS, water is already pumped to alot of places..Perth to Kalgoolie is 1 I can think of..It nly needs to feed into a couple of major river systems and it will find its way south, but I guess it will come to more of who will get payed and who will pay more than the capital cost..
Oh and its still raining...
Cheers Ean
We are just down the track so send some to us. At this point we are heading for the driest year on record with only 62mm so far this year. The only problem is getting the water past the Berrimah line.![]()
Yes I live in down town Alice Springs.
I've lived in the top end for 30 years and I cant remember a december this wet?
The problem we have is it rains for such a short period of time most of our rain falls in 3 months - Ok it's a lot, but most of it ends up in the sea (good for prawns)
if it was over 5 or 6 months it would be a paradise up here.
Keep things a little bit cooler. Just a bit.
Sad to hear that its that dry, a classic reasoning for a water grid of some sort as im sure the amount of water that runs over the wall at manton dam could be put to better use..
I think K dud is more intrested in spending it on helping the asylum seekers than the people who pay his wages..
Maybe its just me who cant understand it..Oh well it can go with all the other things I dont understand..
Cheers Ean
Last edited by 350RRC; 14th December 2009 at 09:18 PM. Reason: coz
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