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17671

Re: Archimedes Screws as ocean-wave power collectors

Doug, One problem I see with an Archimedes Screw driven by seawater is clogging due to all sorts of debris carried in by the water, from seaweeds to chunks of
Manfred Mornhinweg
Aug 31
#17671
 
17670

Re: Archimedes Screws as ocean-wave power collectors?

Huh? You need a constant flow of water with a head of 20+ft to run one. Waves are rhythmic energy sources that fluctuate with tides. Even with a head of
FRANK HELLER
Aug 31
#17670
 
17669

Re: Archimedes Screws as ocean-wave power collectors

Home http://www.howshamhydro.co.uk/ http://www.howshamhydro.co.uk/ Home http://www.howshamhydro.co.uk/ Home Hydro2 2014-12-15T13:50:21+00:00 Mann Power
susankaveny1
Aug 31
#17669
 
17668

Re: Archimedes Screws as ocean-wave power collectors

Just as a reminder, "There is no free lunch" An Archimedes Screw is gravity-dependent plus it has a great deal of internal drag due to length, volume and
jkftl
Aug 29
#17668
 
17667

Re: Archimedes Screws as ocean-wave power collectors

I'm just back from holidays where I was watching waves crash upon (and a significant distance up) the beach. I'm sure we have all witnessed such impressive
Doug Fortune
Aug 29
#17667
 
17666

Re: pump selection

Hi Dusty, My name is Syed Mahmor from Malaysia. I am working on a similar project in Malaysia where I am trying to generate power from existing PRV. The power
Syed Mahmor
Aug 9
#17666
 
17665

Cornell Pump pdf Re: our direction - pump selection

... On Fri, 8/7/15, 'foradventures .' foradventures@... [microhydro] wrote: Dusty and Dave, I recommend you both contact
Robert Maginnis
Aug 9
#17665
 
17664

Cornell Pump pdf, was Re: our direction - pump selection

Sorry for the previous empty message. Thanks to William for offering the Cornell link, I wanted to say what a great hydraulic data book is available at
Robert Maginnis
Aug 9
#17664
 
17663

Cornell Pump pdf Re: our direction - pump selection

... On Fri, 8/7/15, 'foradventures .' foradventures@... [microhydro] wrote: Dusty and Dave, I recommend you both contact
Robert Maginnis
Aug 9
#17663
 
17662

Re: pump selection

For Pumps as Turbines, Motors as Generators, see: http://energyindependence-rob.blogspot.com/2013/01/turbine-speed-torque-flow-pressure-and.html
Robert J Honders Sr
Aug 9
#17662
 
17661

Re: our direction - pump selection

Dusty and Dave, I recommend you both contact Cornell Hydraulic Turbines. They have extensive experience for both of your applications. Quality is second to
foradventures .
Aug 9
#17661
 
17660

Re: pump selection

Hi Dusty, ... Then the first thing you need to know is that using a pump in place of a turbine is a cheap but inefficient solution. Pumps are optimized for
Manfred Mornhinweg
Aug 9
#17660
 
17659

Re: pump selection

Hi, This article might be of big help
Allhydro
Aug 7
#17659
 
17658

Fwd: African Hydro Power vacancies: MD & PM

... Subject: African Hydro Power vacancies: MD & PM Date: Wed, 5 Aug 2015 23:36:52 +0100 From: Deidre Hendricks To:
Wim Jonker Klunne
Aug 6
#17658
 
17657

our direction - pump selection

We have two situations. (1) Use a volume of water in a lower stream to turn a pump to push water to a higher ditch for irrigation. (2) Use faster falling water
Dave Bean (eCentral)
Aug 6
#17657
 
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