by Reinder - Thu Nov 01 (2001)
Cheapest delivery pipe for hydraulic ram pump
Auke, collegues and freinds
Just like to give you a bit of an idea at what level of practical use
Demotech's ram pump has arrived
My main concern was about the long pipe leading the water upwards. Because
of cost reduction it hardly could be anything else then the thinnest
plastic (irrigation) pipe available. One inch diameter seems current in
Africa in some places. To guard it against theft, it should be burried
under ground. Sometimes it is possibel to guide the water first up hill
throught the plastic pipe, then horizontal to the place of use. For that
part the traditional bamboo piping can be very usefully applied
- It is not properly researched how to handle the air bubbles that come
into the rising delivery pipe. My finding is a lot of pressure is lost in
air pockets in the pipeline where it runs downhill for some short length
In this case it helps to have a very thin pipe, to get a water velocity
high enough to push the air along. Then it sort of becomes an air bubble
water lift pump, at least a hybrid solution. If this helps, the design
should develop in the direction of taking in (sniffing) more air. If the
airbubbles can not get a helping function, then the rampump should be
developed toward using some other solution for absorbing te shock
- In the Demotech design, it was babtisized " Soft Machne", about one bag
of cement is needed or less. Material for rubber strips and wooden
connectorsis aivalable for free. So the only restriction for the poorest
people in using a Soft Machine is the cost of the delivery pipe. Would it
be welcome to start a collaboration on tackling that last chackle of the
chain? I could ask people of the WOT- research facility in Enschede/ The
Netherlands if they can work on this problem
Apart from mailing it to you, I'll put this message to you also on
Demotech's website in a forumpage. I would appriciate to receive your
answer also through that forumpage
Best regards, Reinder
by hanna - Tue Dec 03 (2002)
hydraulic ram pump
Am extremely interested in this pump and would like to
receive more detailed technical info
Also, I would like to get in contact with the people running the keur
mousse- project, since I have been doing similar things not far from keur
mousse- and have written and prepared a project with the aim of promoting
sustainable energy uses for waterwinning and irrigation
this involves quite some ground and experiences in the field, since 1994,
are encoureaging, with the ropepump adapted // velo-ropepump- solar
rope-pump
please contact me at 06-24861712
by john Homes - Sun Dec 07 (2003)
Hydraulic Ram Pump
Dear Hanna:
How are you doing ? With limited money, I'm can't afford to BUY a
Hydraulic ram pump.
I'm would like to learns how to built one. Could you e-mail the details
of building ram pump ? the simple the better. Thanks you.
John
jkock@excite.com
by Reinder / Demotech - Sun Nov 02 (2003)
Re: Hydraulic Ram Pump
With limited money, I'm can't afford to BUY an Hydraulic ram pump.
I'm would like to learns how to built one. Could you e-mail the details
of building ram pump ? the simple the better. Thanks you.
>
John
John, hello!
Your reply to Hanna at the forum page of www.demotech.org escaped my (as
moderator) attention. I wonder if you still have interest in such a pump
at no cost. Then please read the messages recently posted at
www.demotech.org/discussion.html .
Regards, Reinder
by Ray Grove - Sun Nov 02 (2003)
Hydraulic ram water pump
Can you send me any info on how to build a hydraulic ram water pump i am
quite good at DIY and would appreciate any plans or where i could get any
info
by Reinder / Demotech - Sun Nov 02 (2003)
Re: Hydraulic ram water pump
> Can you send me any info on how to build a hydraulic ram water pump i am
> quite good at DIY and would appreciate any plans or where i could get
any
> info
Ray, hello!
Sorry, no manual availble as yet. You are welcome to come over to this
place and get a training how to build them, at the same time we could make
that missing manual. In case you are active in the field of development
projects, this could be time well spend for you. Demotech's rampump is
designed to serve people who's resourses are limited to buying one bag of
cement for this purpose. The result is exellent, but of course it takes
some special trcks.
A manual for a more normal approach was published by ITDG in London. Their
rampump is composed out of fitting parts that plumper workshops may have
available.
Good luck with your achievement! Reinder
by J.C. - Fri Dec 03 (2004)
hyd. rams
having had an interest in the H. ram for many years its difficult to
believe that there is not more info on the home built units. This thing
has been around for almost (ever). I hope that someone or several people
who have usable,working home built pump will provide some answers to those
of us who want to build our own units and share the information
Jac_59@tds.net thanks
by olle_welin@hotmail.com - Sun Dec 05 (2004)
Solar powerd Hydralic Ram Pump
I work on simple way to use the Hydralic Ram Pump without water fall. The
energy to drive the hydraulic Ram Pump comes from the heat from the sun
The tecnics is to use a very simple Low temperature water Stirling engine
witch take heat from the sun and coold by the pumping water. The stirling
engine use water inside instead of a power piston. I have build several
prototype. The test prototype is made of very simple components. And the
new thing about this type of stirling engine is no need of rubber
diaphargm. Instead I use a simple no friction under water line hydraulic
piston (made by a lipstic in my first test engine) to drive the
displacer.
It is very suitble with Water ram pump. I can send some pictures and video
cut of the engine. olle_welin@hotmail.com
by windenergy@windenergy.nl - Sun Dec 05 (2004)
by ramson hasibuan - Sun Oct 31 (2004)
i'm very interest
shalom
i'm ramson from indonesia, and i'm a student of undergraduate in lampung
university at mechanical engineering.
i'm very interest for hydraulic ram water pump, coz i think it's very
usefull for many people in near the river to get water to irrigation.
and i need u'r help to give me schematics of hydraulic ram water pump.
please............ and include all about hydraulic ram water pump.
thank you
ramson hasibuan
cyber_kn1ght@yahoo.com
by Reinder / Demotech - Sun Oct 31 (2004)
Re: i'm very interest
Dear Ramson!
For a very long time I have not done further work on the Demotech design
for the Hydram. Much of this work was done with students and staff of the
Univeristy of Bandung in your country. Last result was that we could make
the hydram and the drive made from concrete. It worked very well, was
self-starting and looked very promising, It could be made for almost no
cost and thus be a real solution for the poorest people. As always more
work had to be done on its further development before to be released and
published for general use.
If you are in a position to assist in this further research, you are
welcome. When you study our website, for example the design for the
"BathroomBox" you can see how Demotech organizes her research structure
In a similar way Demotech can cooperate with you and your University.
However if you just need water and think of using a hydram to pump it up
for you, then go to the designs as published by others. For a practical
and technical person it is not difficult to weld it together from steel
sheet and pipes.
Let me know what is of your interest.
Regards,
Reinder van Tijen, Demotech
by Stuart Luscombe - Mon Nov 01 (2004)
Ram Pumps
I have been trying to get a good Ram Pump for a couple of years can you
assit please.I have a water hole about 100 feet deep bigger than a
Football oval however it does not flow all year what would you surghest.
Kind regards, Stuart
by Reinder / Demotech - Mon Nov 01 (2004)
Re: Ram Pumps
Look at Rope Pump in this website when you need a water pump to be
installed in a tube well. If it dries up too easely, then consider to have
it dug deeper or at another location.
by jeb1@dctexas.net - Thu Dec 01 (2005)
rampump
do you have plans?
by Reinder / Demotech - Thu Dec 01 (2005)
Re: rampump
> do you have plans?
Hello Jeb,
Yes, recently plans came up to test our latest design in Guatamala. If you
are also in a position to test the hydram, let us know, give us some
details and let us cooperate.
Reinder
by dads_13@yahoo.com - Sat Dec 03 (2005)
calculation air chamber ram pump
i have a problem about calculation of air pressure in air chamber and about
aproximately volume of air chamber with formula + equations. if you have
article or something about my problem please give me solution, with send
to my email dads_13@yahoo.com or dads_13@plasa.com. because that
calculation i use to analysis at Final Report (study case)at my college
iin Indonesia
by cameroonians@yahoo.com - Tue Dec 06 (2005)
Hydram
Please i would like to get details about the manufacture of hydrams.The
ability yo raise water cheaply shall hvae a revolutionary approach to
agriculture in our eueal areas.Can we send someone to study the proces ?
Can you send someone to teach us the process?
R.Moki Monono
Institute of Rural Development
Through the Application of Science and Technology
IRDAST
Limbe Cameroon
by Reinder / Demotech - Tue Dec 06 (2005)
Hydrams for rural Cameroon
Dear Mr. Moki Monono,
This summer at Demotech's lab in the Netherlands we will work on our
latest design improvements. In November we will test it in Guatemala. We
may be able to come to Cameroon to instruct your organization and others
in January 2007. Read my mail, that I have send you on this subject.
Kind regards,
Reinder van Tijen
by charles - Wed Dec 07 (2005)
jebiga2@verizon.net
I am looking at your site and tried to respond and help some who had
questions about building a ram pump but it seems that those who submit a
email address must have deleted their account and I get the mail back.
SO let me share a address with those who may want to build a pump. I have
built several pumps and they work.
www.clemson.edu/irrg/Equip/ram.htm
by vyrivs@yahoo.com - Wed Dec 06 (2006)
ram pump
i have a farm but the source of water from a creek 20 meters below. im
really interested in putting a ram pump for irrigation purposes. please
send me detailed plans and design of an indigenous ram pump.thanks
by Reinder van Tijen - Wed Dec 06 (2006)
Help with ram pump
Right now we do a project in Guatemala and review our best practices with
the construction of the ram.
If you give us your mail address we can discuss if it may work for both of
us to involve you in our present research.
Please mail us about the local conditions, such as available fall in
meters and available water flow, that should not be less then 2
liter/second.
Regards,
Reinder
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