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2013

5 Nov 2013: BGF career opportunities

posted Nov 6, 2013, 2:04 AM by Knut-Frode Dagestad   [ updated Nov 6, 2013, 2:19 AM ]

More than 75 students (and others) participated at the "career opportunities" on 5 November.
We had 10 presentations from various institutes and companies as well as a representative of school teachers.
  • Institute of Marine Research (Jan Erik Stiansen)
  • Norwegian Meteorological Institute (Gunnar Livik)
  • StormGeo (Kristen Myklebust Ravnestad)
  • NERSC (Johnny A. Johannessen)
  • NIVA (Richard Bellerby)
  • Statoil (Børge Kvingedal)
  • Aanderaa Data Instruments (Berit Lunde Heltne)
  • Teaching/Schools (Kristin Breivik)
  • The Norwegian Navy / KNM Tordenskjold (Erik Kvaleberg)
  • Polytec (Brian Hannafious)
All the presentations are available at the bottom of this page.

Afterwards, pizza and drinks were served in the canteen, where students also got a chance to speak to potential future employers.


Auditorium at GFI was full packed with interested participants.

Richard Bellerby presenting NIVA.



28 May 2013: Waves - art, energy and history - report

posted Sep 9, 2013, 2:10 AM by Knut-Frode Dagestad   [ updated Sep 9, 2013, 2:16 AM ]

19 participants from 7 institutes joined the BGF trip to Kystmuseet in Øygarden 28 May 2013:

Geophysical Institute
Jenny Ullgren, Susanna Mendes, Ellen Viste, Aleksi Nummelin,
Stephen Jones, Joachim Reuder, Thomas Spengler
Met.noUnni Nilssen, Lars R. Hole, Birgitte R. Furevik
Mathematical Institute
Jarle Berntsen, Alfatih Ali, Daulet Moldabyev
HavforskningenKnut Yngve Børsheim, Bente Karin H. Ulvestad
StormGeoStig-Arild Fagerli, Knut-Frode Dagestad
BKKIna K. Thorstensen Kindem
NERSCAnnette Samuelsen


After arrival at Kystmuseet we first watched a 10 minute video about the wave power plants at Toftestallen, and a historical video about life in Øygarden in former times. This was followed by an interesting tour through the permanent historical exhibition, guided by Bjørg Christophersen. After eating Betasuppe we watched the temporal exhibition of wave paintings from the by Extreme Wave Theory Project of the British painter Janette Kerr.



Afterwards we drove 10 minutes southwards, to visit the ruins of the two power plants at Toftestallen.



From the parking place we walked 15-20 minutes, first on gravel path, and then in the rocky terrain out to the cliffs where the ruins power plants are located.

First we passed the "Tapchan" plant, which was designed and constructed by the company Norwave Technology from Oslo. This first prototype was built in 1986 and was operated until 1991. It is based on the principle of waves being lead through a narrowing concrete channel, and splashing over to fill a basin. A generator then extracts energy from the water returning to sea level.
An illustrating video.

An attempt to widen the channel lead to a blasting accident which destroyed the plant. It was thereafter shut down in 1991, and Norwave Technologies went bankrupt the same year. There were also suspicion of economical criminality, as discussed in these two articles from Bergens Tidende:
The dam and the generator house.

The generator?

A video from the site on a more stormy day, filmed by Stig-Arild Fagerli.

More pictures and information about the wave power plants are found on the blog of Eivind Salen.

A few hundred meters further out, we see the ruins of the second wave power plant. This was based on a very different principle, and was developed by the Norwegian company Kværner Brug.
The foundation . After a violent storm the fixing bolts were broken, and the whole plant fell into the sea.

The history of this plant is found on a German website.
An automatic translation by Google is given below:
The second pilot plant depends, a powerful organ pipe equal, in a rock alcove west of the city of Bergen and works like a water flask. The 'Swinging column' was after four years of development, already in 1984 by the Kvaerner Brug AS established in Oslo. It is a stable concrete of about 16 m high with a seaward open chamber into which run in the waves. It comprises under the water surface A 3.5 m wide opening which opens in a vertical concrete shaft, an air turbine located in the upper part thereof having a diameter of 2 m and a weight of 9 t. The pent-up in the chamber shaft drives water into the bay: the water level rises. When the shaft runs and flows, the water level decreases again it oscillates with the frequency of up to 7 m swell up and down and acts like a piston, driving the air from the chamber through the turbine and through the turbine back into the chamber sucks.

The used herein, Wells turbine 'retains regardless of the direction of flow of air always in the same direction, and this. With a fairly uniform speed of 1,000 to 1,500 r / min The plant should have had 500 kW of power. However, was objected to the extremely high volume of air propeller, rather sounded like a siren.

In early 1989, the company announced that a violent storm had torn the test facility, and sent out to the open sea where they had fallen. It is impossible to predict whether the plant, which had cost DM 106 million, could be recovered again.

There are also attempts to Norway, bundling 'of shafts to a depth of 30 m using so-called, wave lenses'. It is estimated that a 150 km long chain of 1 kW shaft generators could the total annual demand of 70 billion kilowatt-hours cover (as of 1980).



The column with the air turbine at the top, before it was destroyed.
Picture from http://energilink.tu.no/leksikon/toftestallen.aspx


Recently there has been a debate whether or not to remove the ruins of the power plants at Toftestallen:
Bjørg Christophersen from Kystmuseet guiding the BGF participants.

Afterwards we enjoyed the cross-institutional company, and the nice views.







More photos taken by Stig-Arild Fagerli are found here




6-8 Sept 2013: BGF on thick ice

posted Sep 9, 2013, 1:39 AM by Knut-Frode Dagestad   [ updated Sep 9, 2013, 2:10 AM ]

Saturday 7 September 2013, 25 participants made a hike on the Folgefonna glacier, with Bergen Geofysikeres Forening and guides from Folgefonni Breførarlag.


Before we went onto the glacier, Prof. Jostein Bakke from the University of Bergen, gave a scientific introduction to the interested audience in the Juklafjord center in Jondal.















    ...and followed up by explaining what we could see during the hike.
















The hike lasted about 5 hours, with beautiful scenery and ice formations.
Åsmund Bakke and his team from Breførarlaged guided us safely through cracks and a great ice tunnel.



































Afterwards we barbecued at Flatabø, where we stayed overnight, 10 km from the glacier.
The nice weather and warm temperatures permitted sitting outside until almost midnight.
Not bad for September in Norway!










24 August 2013: Klimavalg 2013 - arrangement på Torgalmennigen

posted Aug 15, 2013, 6:47 AM by Knut-Frode Dagestad   [ updated Sep 9, 2013, 12:01 AM ]

Bergen Geofysikeres Forening støtter den uavhengige alliansen Klimavalg 2013, som stiller 6 politiske krav for stortingsvalget 2013.

Lørdag 24. august kl 12 arrangerer Klimavalg 2013 et arrangement som begynner ved den blå steinen kl 12:00. Styret i BGF oppfordrer medlemmene til å ta del i denne markeringen, og til å møtes utenfor SAS-hotellet senest kl 12:00.


4 July 2013: VilVite - Energi- og klimaoppdraget Antilantis

posted Jun 26, 2013, 2:57 AM by Knut-Frode Dagestad   [ updated Jul 5, 2013, 6:35 AM ]

Bergen Geofysikeres Forening are invited to VilVite Thursday 4 July 17:00 to try "Antilantis", which is a learning program for secondary schools. Antilantis consists of a climate simulator PC game, and energy and climate related tasks to be be solved in the exhibition.
http://www.vilvite.no/skole-barnehage/laeringstilbud/show/energi-og-klimaoppdraget-antilantis/
http://vimeo.com/22065278

The intention of this visit is twofold:
  • VilVite are seeking cooperation with the scientific institutions in Bergen, and would like to get feedback on Antilantis and suggestions for new activities and exhibitions
  • You will get insight into exciting means of communicating knowledge, and may discover new possibilities for dissemination of your own research.



This event (and entrance) is free for BGF-members this evening. Regular entrance price is 180 NOK, so do use this possibility to get a free entrance and new experiences, and to meet other colleagues, and to have fun!

Membership costs 50,- per year (30,- for students) and can be paid in cash at the event.

Please register by email to knutfd@met.no (no commitment).

22 Feb 2013: BGF annual meeting - Marine renewable energy – an option for the future?

posted Apr 11, 2013, 4:21 AM by Knut-Frode Dagestad   [ updated Apr 11, 2013, 6:21 AM ]

Welcome to the annual meeting of the Bergen Geophysical Society on February 22nd 2013!

The talk of the evening will be given by Finn Gunnar Nilsen from Statoil and Geophysical Institute (UiB), who will address the available energy resources and challenges related to extracting energy from the ocean. Focus will be on tidal, wave and offshore wind energy.  

Offshore wind is a rapidly expanding industry, in particular in Europe. Several challenges are related to this development, as reliability, flow interaction phenomena and in particular costs. Utilization of ocean wave energy is still in its infancy, but the fundamental principles are known and a lot of technical principles developed. However, reliable and cost effective solutions are still missing. Tidal energy has the nice property of being predictable. However, the resources are limited to few locations.

Some of the above issues will be addressed and illustrated by examples.  

The talk is open, free, and will be given in english.


The lecture will be followed by dinner and party!  

The menu will be announced on our website org.uib.no/bgf


Program

19:00-19:30: Annual meeting:

    •  Election of board member(s)

    •  A status report on the finances and activities

19:30-20:15: Lecture: Marine renewable energy – an option for the future?

20:30: Dinner and annual party!


When: Friday February 22nd 2013 at 19:00

Where: NERSC cinema and cafeteria, Thormøhlensgt. 47 (http://www.nersc.no/about/contact).

Fee for the party: Students 150,-; members 200,-; non-members 250,-. Membership is only kr. 50,- per year (30,- for students).

Sign up: The lecture is free and open for all. The annual meeting is for everyone who are or wishes to become a member. The party is also open, but you need to sign up with Knut-Frode Dagestad <Knut-Frode.Dagestad@stormgeo.com> by Wednesday 20th of Febuary for that. Remember to mention any dietary needs.


Welcome! Even, Knut-Frode and Annette

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