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154 Uppsatser om Nuclear - Sida 3 av 11

Aspirantutbildningsprogram

Because of the currently large recruitment needs within the Swedish Nuclear powerindustry, it is necessary to recruit trainers from other recruitment groups than that ofexperienced operators at Nuclear power plants. The foundation for a trainingprogram regarding these recruitment groups, here called ?aspirants?, has in this thesisbeen prepared. It contains a suggestion for main topics in the program. It also includesdiscussion on the balance between forms of education and a concrete example ofhow a lesson could be performed.These suggestions has been developed through analysis of interviews and surveyresponses from student groups most suited for the propositioned trainee program,and individuals with service as a trainer or closely linked to training activities withinthe industry.The analysis suggests that the candidates gets, besides the opportunity to practice asoperating staff before the theoretical training begins, a training program, tightly boundto the power plant with multiple instances of practice and the chance of going intothe power plant and see how things that are being raised in theory, look in real life.The practice, in addition to helping to create an understanding of the plant, it will facilitate networking with the operations staff to build a relationship and trust.Candidates should have plenty of opportunity to educate and see both other aspirantsand experienced trainers train.

?Alla vill ju att ett barn ska växa upp i en familj?- en kvalitativ studie om familjenormer inom familjehemsvården

Placing children in foster care is today considered the best alternative for children unable to stay in their biological environment. A Nuclear family consisting of a father, a mother and a child is the most common family structure within foster care today. The purpose of this thesis is to gain insight on the family norms that control the foster care system. It's a qualitative study based on interviews with six professional social workers within the field of foster care. This method gave us empirical material, that was later analyzed from two main theories and one theoretical concept.

Hantering av skadade styrstavar

The thesis was performed at Forsmarks Kraftgrupp AB in the department ofmechanical engineering, FTCM. Forsmark Nuclear power plant has had problems with cracks in some of the controlrods which are placed in the reactor at Forsmark 3. To investigate the cause of this,material samples were taken from five of the damaged control rods. This sampling ofthe rods resulted too short rods to be transported in the shipping container to theinterim storage facility for used Nuclear fuel in Oskarshamn. Control rods are crucial components in a Nuclear reactor, regulating the reactoreffect by blocking or unblocking fuel rods. Control rods which have been in thereactor are always handled under water in order to protect against the radiation theyemit. The task was to design a control rod adapter that extends the control rod sotransport can be performed from Forsmark. The goal of the work was a complete setof blueprints so the control rod adapter can be manufactured and mounted on theshort control rods and then be transported to the interim storage facility. The work began with mapping of how control rods normally being handled from thereactor to the interim storage facility.

Analys av revisionsarbetet på Forsmarks kärnkraftverk

This thesis is the final part of bachelors program of Nuclear Engineering at UppsalaUniversity (program code KKI1). The work has been carried out in cooperation withForsmark Kraftgrupp AB. The topic studied deals with possible improvements ofefficiency at the planning department at block 2 in Forsmark i.e. FMP2.FMP2 plans and coordinates over 3,000 operations which is carried out during theannual overhaul of block 2 in Forsmark. Inspections, fuel replacement and repairs areincluded in the annual overhaul.

Tas Nordkorea någonsin på allvar? : En studie av Nordkoreabilden i två svenska tidningar

North Korea has been on people?s minds lately. This essay is a study of what image Swedish press gave of North Korea starting in 1948 and ending in 2011. The study looks at two of the largest newspapers in Sweden, Aftonbladet and Dagens Nyheter.  During the 1950´s the image given was that North Korea was part of the communists, a puppet state of the Soviet Union.

Samhällsekonomisk analys av ett djupförvar för använt kärnbränsle i Forsmark :

This thesis investigates the socio- and environmental economic effects of a deep repository for spent Nuclear fuel in Forsmark in the municipality of Östhammar. I seek to show the general picture but focus on the effects on employment, environment and income. Cost-benefit analysis is used to investigate the differences in utility between a scenario with and a scenario without a deep repository in Forsmark. Most of the possible effects can not be valued and many can not even be quantified with the data available today. Therefore this thesis has a bit of a ?preliminary study character? and seeks to show what we know today and what needs to be further investigated when available data allow it. The costs that could be valued are noise from the traffic during the period of building and emissions of carbon dioxide and nitrogen oxides from the transportation of rock masses during the building period.

Utvärdering av dimensionell stabilitet i PWR-patroner i Ringhals

Dimensional stability is an important aspect of fuel mechanical design and licensing of new fuel designs for Nuclear power plants. Dimensional changes within the reactor can affect the safety margins against overheating of the cladding and the pellets, therefore it is crucial that the dimensional changes are kept to a minimum.The profits per produced kiloWatt hour continue to decrease for the Swedish Nuclear power plants. Some reactors are even operated with a calculated loss. To reduce fuel costs and thereby improve the profit some reactors are operated with higher uranium enrichment, so that the assemblies can reach a higher average burnup. This increases the neutron fluence to the pellets, cladding an spacers.

En studie om sambandet mellan självskattad astmakontroll och en inflamationsmarkör hos barn med astma

Background:Due to a more open climate in society for homosexual people several lesbian couples have given birth to children in their relations. Research has shown no differences between children in lesbian families and children in heterosexual families considering mental and social health. International research has also shown that lesbian parents often have bad experiences from meetings with healthcare providers.Theaim of this study was to describe lesbian child families/familyplannings and the lesbian parents experiences and expectations of the healthcare.Themethod for the study was qualitative interview with 9 lesbian parents. The data was analysed by the queer theory heteronormative concept.Theresults of the research was that lesbian families considered themselves as a Nuclear family and at the same time distanced themselves from the Nuclear family concept. The findings showed that lesbian couples are involved in a very long process when they try to become parents.

Lesbiska barnfamiljers möten med hälso- och sjukvården

Background:Due to a more open climate in society for homosexual people several lesbian couples have given birth to children in their relations. Research has shown no differences between children in lesbian families and children in heterosexual families considering mental and social health. International research has also shown that lesbian parents often have bad experiences from meetings with healthcare providers.Theaim of this study was to describe lesbian child families/familyplannings and the lesbian parents experiences and expectations of the healthcare.Themethod for the study was qualitative interview with 9 lesbian parents. The data was analysed by the queer theory heteronormative concept.Theresults of the research was that lesbian families considered themselves as a Nuclear family and at the same time distanced themselves from the Nuclear family concept. The findings showed that lesbian couples are involved in a very long process when they try to become parents.

Säkerhetsanalys av brandbekämpning i kritiska utrymmen på Forsmark 1

In order to maintain a high safety level at a Nuclear power plant it is important not only to measure the reliability of the components and systems of the plant, but also to investigate how the plant responds to human actions. One of the most hazardous situations in managing a power plant is fire occurring in critical areas. This study concerns the prospect of the local fire brigade to suppress a fire that has started in one of the most critical rooms for maintaining high reactor safety. The model created gives an indication on the possibilities of succeeding in suppressing a fire. In order to get a more reliable fire fighting the following advice are given:- Let the fire brigade go rounds in the plant together with the personnel, during which recommended fire suppressing methods are determined to avoid long preparation time in an actual situation.- Prepare rooms with two subsystems to make them partly with no voltage.- Give the fire brigade better feedback from actual events on Nuclear power plants.- Education and training in suppressing fires in electrical equipment.The probabilistic safety assessment strives to be as realistic as possible.

Energiewendes påverkan på det nordiska kraftsystemet

Both the German and the Nordic power markets are seeing dramatically changed conditions due to an ongoing process of expanding the share of renewable production in the systems. For the German part this comes from heavy subsidies which have led to an explosive development in installed capacity of photovoltaic and wind based production. After the Fukushima incident it has been decided to shut down all Germanys Nuclear plants. This capacity drop is however not of the same magnitude as the increase in renewables, but will impact the stability of the power system. The Nordic power system which already has a surplus of power sees an even further increase, coming mainly from construction of new Nuclear plants in Finland and a general increase in wind farms.

Energioptimering : Resteffektkylning av mellanlager för använt kärnbränsle (CLAB) Oskarshamn

This thesis is done in cooperation with SWECO Energuide in Växjö. They have been assigned by SKB in Oskarshamn to renew their electrical power supply and the ancillary processing systems in their Central provisional storage of spent Nuclear fuel, CLAB. Today in the CLAB facility, the spent fuel is cooled down with water pumps, driven by asynchronous induction motors, where the water is regulated by mechanical valves to the desired flow. After the upgrade, the engines will be powered by AC drives that can control the pumps by changing the rotational speed and thus change the water's cooling effect on the Nuclear fuel. In this study, I investigated the interference AC drives causes the feeding network and how to go about averting them.

Planerat kärnbränsleförvar i Forsmark : - med fokus på episyenit

It takes a very long time for ionizing radiation of used Nuclear fuel toreturn to a natural background level, for this reason one of the requirements for theselection of the location of a repository was that the environment as well people'shealth would be protected from the harmful effect of radioactivity. This requirementmeans that the waste must be isolated in a geological formation. In Sweden therepository will be built in the crystalline bedrock. The location for the Swedish Nuclearfuel repository at nearly 500 meters depth at Forsmark in Östhammar was decided 3June 2009. The repository will be located at Söderviken, close to the ForsmarkNuclear power plant in a 1.90 billion year old bedrock that will accommodate 12,000tons of spent Nuclear fuel.

Fairtrade i Karlstad : En undersökning om utbudets utveckling och karlstadsbornas upplevelse av märkningen

It takes a very long time for ionizing radiation of used Nuclear fuel toreturn to a natural background level, for this reason one of the requirements for theselection of the location of a repository was that the environment as well people'shealth would be protected from the harmful effect of radioactivity. This requirementmeans that the waste must be isolated in a geological formation. In Sweden therepository will be built in the crystalline bedrock. The location for the Swedish Nuclearfuel repository at nearly 500 meters depth at Forsmark in Östhammar was decided 3June 2009. The repository will be located at Söderviken, close to the ForsmarkNuclear power plant in a 1.90 billion year old bedrock that will accommodate 12,000tons of spent Nuclear fuel.

Utveckling av ett användbart IT-stöd : för att stödja operativa arbetsrutiner

Nuclear power production carries potential risks both for the environment and for the work force. Different safety measures are employed and they stem from local rules as well as from regulatory authorities. This work describes the development of a safety promoting tool at Forsmark Power Plant, one of Sweden?s three Nuclear power plants. We describe the development of a computer based system for Pre-Job Briefing and Post-Job Debriefing.

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