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bajagerman
Nomad
Posts: 129
Registered: 9-11-2013
Location: Hamburg / Germany
Member Is Offline
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This is a part of my crew
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David K
Honored Nomad
Posts: 64852
Registered: 8-30-2002
Location: San Diego County
Member Is Offline
Mood: Have Baja Fever
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Nice memories!
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bajagerman
Nomad
Posts: 129
Registered: 9-11-2013
Location: Hamburg / Germany
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See the video about this project under the link:
https://youtu.be/A210bOGgVmU
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bajagerman
Nomad
Posts: 129
Registered: 9-11-2013
Location: Hamburg / Germany
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If you type or merge the following coordinates in either Google Maps or Google Earth you will see the position of the geocachen in the dessert of Baja
California. 25 47.900 N 111 59.260 W
Around this position you will see the way up the hill for the repeater position as well the position of the station itself att Las Barrancas and the
feed point to the international telephon and data network in Ciudad
Constitucion. For more information read this blog or see a video of the constrctions time of the project Sonntlan at Las Barancas.
https://youtu.be/A210bOGgVmU
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bajagerman
Nomad
Posts: 129
Registered: 9-11-2013
Location: Hamburg / Germany
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This is the relaisstation on top of the radio hill.
You may also see a video about the constructions of the oroject Sonntlan: https://www.youtube.com/watch?v=A210bOGgVmU&t=11s
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bajagerman
Nomad
Posts: 129
Registered: 9-11-2013
Location: Hamburg / Germany
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See the video about this project under the link:
https://youtu.be/A210bOGgVmU
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BajaBruno
Super Nomad
Posts: 1035
Registered: 9-6-2006
Location: Back in CA
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Mood: Happy
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What a pity that all the time, money, and effort went for nothing. The facility was a lot more valuable in operation than sold off for parts.
Christopher Bruno, Elk Grove, CA.
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bajagerman
Nomad
Posts: 129
Registered: 9-11-2013
Location: Hamburg / Germany
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hi bajabruno, you're basically right, it's a shame that all the material for 90 million dm has disappeared into nowhere.
On the other hand, one has to see that the results of this research project were very important for the Federal Republic of Germany.
Wind energy, solar cells and thermal energy were used in the project. The data was collected and evaluated in Germany.
Telephony and data transport were my area of expertise in this project as well as the radio link between Las Barrancas and Ciuda Constitucion.
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bajagerman
Nomad
Posts: 129
Registered: 9-11-2013
Location: Hamburg / Germany
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In the central computer in Las Barrancas, all data was merged, pre-sorted and permanently transmitted to Germany.
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bajagerman
Nomad
Posts: 129
Registered: 9-11-2013
Location: Hamburg / Germany
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This is the control place for the central computer.
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4x4abc
Ultra Nomad
Posts: 4289
Registered: 4-24-2009
Location: La Paz, BCS
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Mood: happy - always
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what year?
Harald Pietschmann
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bajagerman
Nomad
Posts: 129
Registered: 9-11-2013
Location: Hamburg / Germany
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See the video about this project under the link:
https://youtu.be/A210bOGgVmU
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bajagerman
Nomad
Posts: 129
Registered: 9-11-2013
Location: Hamburg / Germany
Member Is Offline
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See the video about this project under the link:
https://youtu.be/A210bOGgVmU
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TMW
Select Nomad
Posts: 10659
Registered: 9-1-2003
Location: Bakersfield, CA
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BajaNomad posted this in 2013:
La Paz and Las Barrancas - Sonntlan
In a joint project between the Federal Republic of Germany and Mexico in the late 1970s, a
solar multi-stage flash distillation plant was built in a desalination research facility in La Paz. The
project was called SMSF. With a capacity of 10 m3/day, the plant was commissioned in 1980.
The plant consisted of 10 stages (8 heat recovery and 2 heat rejection) and had a 194 m2 solar
flat plate collector field for daytime operation, 2 X 162 m2 flat plate collector fields to supply heat
to the energy storage for night time operation. The plant was designed to operate continuously 24 h
a day; the storage could keep the plant working for over 28 h in normal conditions. A further
160 m2 parabolic concentrating collector field was also included, collectors were mounted on
high-precision two-axis tracking bases. The plant operated satisfactorily according to its design.
After the success of this project the German and Mexican governments signed agreements for
more research collaboration which gave rise to Sonntlan, a larger solar energy research project in
the early 1980s. Sonntlan had two parts, one in another state in Mexico researching air
conditioning and hotwater systems for houses, and the one in Las Barrancas, BCS, which involved
several different solar applications including solar desalination.
In Las Barranas, a fishing community on the coast of BCS, Sonntlan implemented an integral
system providing drinking desalinated water, ice, hot water, communications, refrigeration and
electricity to the community of 250 inhabitants. This included:
� A 250 kW peak PV generator
� A 1540 m2 solar hot water collector field (heat pipe collectors)
� 3 X 38 m3 hot water storage tanks
� 550.8 m2 of parabolic trough concentrating collectors for the hot oil system
� A 16 m3 hot oil storage tank
� Heat exchanger between hot oil and hot water circuits
� Diesel generators
� An 8 m3/day single stage waste heat recovery flash distillation unit
� A 20 m3/day multiple stage solar flash distillation unit
� A 20 m3/day reverse osmosis desalination unit
� An ice-making facility
� An absorption-compression deep freezing facility for local produce (fish)
� A PV-powered communications system
When the agreements ended, both plants (La Paz and Las Barrancas) operated for some time
and then the projects were just abandoned. Although the reasons for this are not perfectly clear, the
political climate of the time, the use of largely foreign technology and the lack local consultation
can explain partly why these operations came to a stop.
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bajagerman
Nomad
Posts: 129
Registered: 9-11-2013
Location: Hamburg / Germany
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Hi TMW,
Thank you for your good report on the Sonntlan project.
Huesos started this blog because people were wondering about the strange buildings
in Las Barrancas.Later I found this blog and always wrote something on the subject.
I started my own blog because of a bet I had with my grandchildren.
http://forums.bajanomad.com/viewthread.php?tid=74962
Under the link: http://www.dj7wl.darc.de/Sontlan.html the whole story is described in English.
Why did I like it so much in Mexico on the Baja California?
Met a lot of friendly people there and had a good crew of technicians who helped me with the
installation in Las Barrancas, Ciuda de Constitution and at the Radio Relay Hill station.
Joachim
Hamburg/Germany
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bajagerman
Nomad
Posts: 129
Registered: 9-11-2013
Location: Hamburg / Germany
Member Is Offline
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See the video about this project under the link:
https://youtu.be/A210bOGgVmU
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JDCanuck
Super Nomad
Posts: 1669
Registered: 2-22-2020
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Very interesting, Joachim. I wonder how the solar distillation system worked out over a long period? Too bad everything was removed as it was a very
ambitious project for the time.
Are you ever planning on returning to La Paz and revisiting this project? If so, I have a place west of La Paz you and any family members you bring
are welcome to camp out at.
[Edited on 4-23-2022 by JDCanuck]
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