Fjärrvärmedrivna vitvaror : Erfarenheter från utveckling, installationer och kostnadsberäkningar

Värmedrivna vitvaror eller HWC-maskiner som de kallas av tillverkaren värms med varmt vatten från en cirkulerande krets via en värmeväxlare inbyggd i maskinen, till skillnad från konventionella maskiner som värms med el. Denna teknik skall inte förväxlas med maskiner som är anslutna till varmvattenledningen och fylls på med varmt vatten och som därmed begränsas till disk- och tvätt. Syftet med fjärrvärmedrivna vitvaror är alltså att använda fjärrvärme, som har lägre kvalitet och pris än elenergi för uppvärmning och torkning och på så sätt spara el och utöka fjärrvärmeunderlaget. En jämförelse av koldioxidutsläpp och primärenergianvändning mellan konventionella vitvaror och fjärrvärmedrivna vitvaror visar att både koldioxidutsläpp och primärenergianvändning blir lägre för fjärrvärmedrivna vitvaror om biobränsle anses koldioxidneutralt och den el som ersätts är producerad i kolkraftverk eller gaskombikraftverk.   Denna rapport beskriver utveckling och kommersialisering av värmedrivna vitvaror (disk- och tvättmaskiner samt torktumlare och torkskåp) och hur de kan anslutas mot fjärrvärmesystem i olika systemlösningar. Dessutom har de energimässiga och ekonomiska förutsättningarna för tekniken undersökts. Erfarenheterna från fältprovning är dock mycket begränsade, eftersom de byggen där fälttesterna skulle ske försenades. Under 2013 färdigställs ett flerbostadshus med värmedrivna vitvaror i 160 lägenheter i Västerås.   De utvecklade maskinernas värmeanvändning som andel av total energianvändning vid 60 graders framledningstemperatur har uppmätts till ca 50 % för diskmaskinen, 67 % för tvättmaskinen, 80 % för torktumlaren och 93 % för torkskåpet. I det studerade flerbostadshuset av passivhusstandard uppgår lasten från värmedrivna vitvaror komfortgolvvärme och handdukstorkar till upp mot 30 % av husets totala värmeanvändning. För småhus är motsvarande siffra upp mot 20 %. Att använda fjärrvärme istället för elvärme till dessa installationer som normalt är elvärmda kan allts minska elbehovet betydligt i lågenergibebyggelse vilket också minskar både koldioxidutsläppen och primärenergianvändningen.   Ekonomiska analyser har genomförts för två olika systemkoncept (separat vitvarukrets och Västeråsmodellen) för nybyggda småhusområden och flerfamiljshus där fjärrvärme inte bara används till vitvaror utan också till handdukstorkar och komfortgolvvärme. De ekonomiska analyserna visar att Västeråsmodellen är den mest ekonomiskt intressanta systemlösningen med värmedrivna vitvaror, handdukstork och komfortgolvvärme. I flerfamiljshus kan den vara konkurrenskraftig mot de elvärmda alternativen (konventionellt system med eldrivna vitvaror, komfortgolvvärme och handdukstorkar) om prisskillnaden mellan el och fjärrvärme är större än 0,7 kr/kWh. En parameterstudie visar att kapitalkostnaden blir ganska hög jämfört med energikostnaden, vilket betyder att lång livslängd och många cykler är viktigt för att förbättra de ekonomiska förutsättningarna för värmedrivna vitvaror. För passiva småhus blir kostnaden för Västeråsmodellen med värmedrivna vitvaror, handdukstork och komfortgolvvärme likvärdig med de elvärmda alternativen vid energiprisskillnader på 0,7 kr/kWh inklusive moms, medan det krävs prisskillnader på 0,9 kr/kWh inklusive moms för normalisolerade småhusområden.   Sammanfattningsvis kan sägas att i kommuner med ett konkurrenskraftigt fjärrvärmepris finns det viss lönsamhet för hela konceptet enligt Västeråsmodellen med värmedrivna vitvaror, komfortgolvvärme, och handdukstorkar. Om man däremot ser på konkurrensen för enskilda vitvaror är det främst torktumlaren som är konkurrenskraftig i bostäder. Målpriset på 1000 kr extra för värmedrift har inte kunnat uppnås inom projektet för diskmaskiner och tvättmaskiner. Det krävs lägre priser och låga anslutningskostnader för att räkna hem diskmaskinen och tvättmaskinen som enskilda komponenter.   Värmedrivna tvättmaskiner och torktumlare är konkurrenskraftiga i flerfamiljstvättstugor. Speciellt i de fall där beläggningen är god och flera maskiner delar på anslutningskostnaden till fjärrvärmecentralen kan värmedrift bli riktigt lönsam. Torkskåpens konkurrenskraft har inte kunnat utvärderas, då priset ännu inte fastställts. Att använda VVC-systemet för värmedistribution till värmedrivna vitvaror kan vara mycket intressant, men det kräver att legionellaproblematiken kan lösas. I nuläget finns ingen lösning som uppfyller formuleringarna i boverkets byggregler. Ett annat distributionssätt som kan vara intressant, men som inte undersökts i studien är att använda VVC för varmvattendistribution och en gemensam radiator- och vitvarukrets med konstant framledningstemperatur. Den aktör som förväntas ha störst ekonomiskt intresse av att tekniken implementeras är sannolikt fjärrvärmebolagen som får sälja mer värme och det ligger därmed främst på deras ansvar att marknadsföra tekniken i mötet med sina kunder.

Passive solar options for reducing heating demand and maintain indoor climate in a multifamily house in Sweden

This research was carried out by studying possible renovation of a two-storey detached multifamily building by using passive solar design options in a cold climate in Borlänge, Sweden where the heating Degree Days are 4451 (base 20°C). Borlänge`s housing company, Tunabyggen, plans to renovate the project house located inthe multicultural district, Jakobsgårdarna. The goal of the thesis was to suggest a redesign of the current building, decrease the heating energy use, by applying passive solar design and control strategies, in a most reasonable way. In addition ensure a better thermal comfort for the tenants in the dwellings. Literatures have been studied, from which can be inferred that passive design should be abasic design consideration for all housing constructions, because it has advantages to ensure thermal comfort, and reduce the energy use. In addition further savings can be achieved applying different types of control strategies, from which the house will be more personalized, and better adapted to the user’s needs.The proposed method is based on simulations by using TRNSYS software. First a proper building model was set up, which represents the current state of the project building. Then the thermal insulation and the windows were upgraded, based on today's building regulations. The developments of the passive solar options were accomplished in two steps. First of all the relevant basic passive design elements were considered, then those advantages were compared to the advantages of applying new conventional thermostat, and shading control strategies.The results show that there is significant potential with the different types of passive solar design; their usage depends primarily on the location of the site as well as the orientation of the project building. Applying the control strategies, such as thermostat, and shading control, along the thermal insulation upgrade, may lead to significant energy savings (around 40 %), by comparison to the reference building without any upgrade.

Obstacles and Opportunities Foreign Graduates Meet In Dalarna Labour Market, Sweden

Foreign graduates have been part of the success stories of many developed countries. This is as a result of their immeasurable deposit of ideas, knowledge, and innovation in the host country. Though the process of these foreign graduates penetrating and integrating into the labour market of the host country could be slow and rough as they encounter some obstacles on the way; they still strive to break through and be part of the country’s workforce because they foresee some opportunities therein. This research study is about the obstacles and opportunities foreign graduates meet in Dalarna labour market. The study investigated and identified the obstacles and opportunities foreign graduates meet in Dalarna labour market. For a thorough execution of this research, we collected primary data by handing questionnaires to 65 foreign graduates searching for jobs in Dalarna region and interviewed eight people, among which seven were foreign graduates and one of them was a staff at Arbestförmedlingen (Employment Agency) to give us a general view of the Dalarna labour market. We read previous research works and related articles to understand the topic in order to get an overview of the terminologies and concept to apply. This study concluded that language is a major obstacle foreign graduates meet in the Dalarna labour market. Other possible obstacles include culture, poor integration policies, lack of a placement bureau, lack of trust, limited opportunities, favoritism, lack of jobs, lack of references and experience. On the other hand factors like job availability, outgoing labour force and unskilled labour are possible opportunities foreign graduates meet in the Dalarna labour market. Furthermore flexible work time, good working atmosphere, experience, social security/welfare, good standard of living, family friendly region, higher wages, job security and cheap cost of living are also possible benefits that foreign graduates get in Dalarna.

Economic growth in Sweden, 2000-2010 : The dot-com bubble and the financial crisis

    Economic growth is the increase in the inflation-adjusted market value of the goods and services produced by an economy over time. The total output is the quantity of goods or servicesproduced in a given time period within a country. Sweden was affected by two crises during the period 2000-2010: a dot-com bubble and a financial crisis. How did these two crises affect the economic growth?     The changes of domestic output can be separated into four parts: changes in intermediate demand, final domestic demand, export demand and import substitution. The main purpose of this article is to analyze the economic growth during the period 2000-2010, with focus on the dot-com bubble in the beginning of the period 2000-2005, and the financial crisis at the end of the period 2005-2010. The methodology to be used is the structural decomposition method.     This investigation shows that the main contributions to the Swedish total domestic output increase in both the period 2000-2005 and the period 2005-2010 were the effect of domestic demand. In the period 2005-2010, financial crisis weakened the effect of export. The output of the primary sector went from a negative change into a positive, explained mainly by strong export expansion. In the secondary sector, export had most effect in the period 2000-2005. Nevertheless, domestic demand and import ratio had more effect during the financial crisis period. Lastly, in the tertiary sector, domestic demand can mainly explain the output growth in the whole period 2000-2010.

Price elasticity of demand for cigarettes : The Case of Sweden

Due to health problems and the negative externalities associated with cigarette consumption, many governments try to discourage cigarette consumption by increasing its price through taxation. However, cigarette, like the other addictive goods, is viewed as that it is not sensitive to demand rules and the market forces. This study analyses the effect of price increase on cigarette consumption. We used Swedish time series data from 1970 to 2010. Our results reveal that though cigarette is addictive substance its demand is sensitive to changes in the price. Estimates from this study indicate short-run price-elasticity of -0.29 and the long run price elasticity of -0.47.

Historical Consciousness, Historical Media, and History Education

This thesis by publication contains an introductory summary chapter and three papers. The first paper presents a study of how the concept of historical consciousness has been defined, applied, and justified in Swedish history didactical research. It finds that there is consensus regarding the definition of what a historical consciousness is, but that there is variation in how the concept is applied. It is suggested that this variation makes historical con­sciousness a complex and vague concept.      The second paper uses the results presented in the first paper as a point of departure and from thence argues for a broadened understanding of the concept of historical consciousness that incorporates its definition, applica­tion, development, and significance. The study includes research about his­torical consciousness primarily from Sweden, the UK, the USA and Canada. The paper presents a typology of historical consciousness and argues that level of contextualisation is what distinguishes different types of historical consciousnesses and that an ability to contextualise is also what makes his­torical consciousness an important concept for identity constitution and morality.      The third paper proposes a methodological framework of historical con­sciousness based on the theory of historical consciosusness presented in the second paper. It presents arguments for why the framework of historical consciousness proposed can be useful for the analysis of historical media and it discusses how aspects of the framework can be applied in analysis. It then presents a textbook analysis that has been performed according to the stipulated framework and discusses its results regarding how textbooks can be used to analyse historical consciousness and its development.

Inte bara jämställdhet : Beslutet om föräldraledighet, moderskaps- och faderskapsidealoch idéer om barns bästa

More than gender equality. Decisions on parental leave and ideals around motherhood, fatherhood and the best interest of the child On the basis of 40 semi-structured interviews, this study discusses decision making processes regarding parental leave among nascent first-time middle-class parents in Sweden. We analyze motives and ideas behind the couples’ plans and decisions and how decisions on parental leave were made. We furthermore show how the decision making processes can be discussed in relation to the institutional context. The results show that ideals and norms of gender equality are accompanied by gendered divisions of work and care and a partially traditional view on motherhood and fatherhood. Contrary to previous studies, we do not find a clear link between gender equal ideals and explicit negotiations. An equal division of parental leave is, in some couples, taken for granted to such an extent that the decision on how to divide the leave is taken implicitly rather than explicitly. Decisions on division of parental leave are not isolated processes. Rather, ideals and norms around motherhood, fatherhood, gender equality and not least what is ‘in the best interest of the child’ constitute part of the context in which these decision making processes take place.

Bortom skolframgång : En analys av PISA 2006 ur ett intersektionellt perspektiv

Beyond school performance An analysis of PISA 2006 from an intersectional perspective One of the central questions in recent discussions about Swedish schools is which factors that influence school performance. Socio-economic background, gender, ethnicity, country of birth are some aspects that are mentioned in many international and national studies. Sweden is one of the participants in the Programme for International Student Assessment (PISA) and the results of PISA since 2000 show deteriorated results for Sweden in reading performance, mathematics and science among 15-year-old students. In order to set school performance in a broader context we analyzed data for the Swedish part of PISA 2006, in which 57 countries participated (of which 30 OECD-countries), with multivariate methods from an intersectional perspective. Our analysis of PISA 2006 shows a complexity of different social, economic and cultural factors behind students’ school performance. This intersectional result is also strengthened by the results from PISA 2009, not analysed here. Further, our results show that students’ school performance vary with immigration status but that this variation increases by the factor of social inequality in the Swedish society.

Förändrade intimitetsformer bland äldre i det senmoderna samhället

Changing forms of intimacy among older people in late modern society The purpose of this paper is to draw attention to a neglected reality in Swedish social research: New romantic relationships in later life. Our theoretical points of departure are the transformation of intimacy and the transition from a culture of marriage to a culture of divorce. We ask if the transformation of intimacy has reached later life and investigate late life divorce, attitudes to and choice of union form in late life heterosexual relationships, relationship history and the importance of a relationship for life satisfaction. The results, which are based both on demographic data and a survey to 60–90 year old Swedes (n=1225), show that changing relationship patterns in late modern Sweden have reached older people. In romantic relationships initiated in later life LAT is the preferred union form, followed by cohabitation, while marriage is a rare choice. In some respects this makes older people an avant-garde in the investigation of alternative union forms. The results also show the importance of romantic relationships for life satisfaction in later life – independent of union form. Finally we criticize Swedish census data, which is based on civil status, for giving a somewhat distorted image of older people’s family and romantic lives.    

Utbrändhet som arbetsskada och motståndsberättelse

Burnout as occupational injury and narrative of resistance During the last years of the 1990s and the first years of the 2000s, burnout was a common diagnosis for sick listing in Sweden. That burnout is directly related to working life was acknowledged by medical experts as well as in the public debate. The number of applications for occupational compensation due to social and organizational factors in work rose from a very modest degree to nearly a forth of the claims among occupational diseases. In this article 48 individual claims for compensation in cases of burnout as occupational disease are analyzed as narratives of resistance. In this respect they are seen as alternative accounts of risk in working life, but also as narratives about resistance. The concept, narratives of resistance, is used to understand the claimants’ argumentation for rights to compensation, as well as how the claimants draw upon public narratives of societal transformation to understand how they themselves have become ill from occupations that normally are not thought to be hazardous. One conclusion from the analysis is that the claimants regard their illness as the resistance of the body against changes in society and working life. 

Medierepresentationer av etnicitetsochmigrationsrelaterade frågor inomäldreomsorgen i Sverige och Finland

Media representations of ethnicity- and migration-related issues within the elderly care in Sweden and Finland Research on welfare regimes and migration regimes has shown that Sweden and Finland have similar elderly care regimes but different migration regimes. It is against this backdrop that we set out to study what Swedish and Finnish daily press focusing on elderly care has written about ethnic minorities, migrants and migration. The study uses quantitative content analysis to analyze 241 daily newspaper articles published between 1995 and 2008. This article presents the themes that have been discussed, the elderly care actors that have been in focus (i.e. whether the focus has been on elderly care recipients, elderly care providers or informal caregivers), the ethnic backgrounds that these actors have had (i.e. whether the focus has been on the ethnic majority or on ethnic minorities) and the type of explanatory frameworks that the newspaper articles in focus have used. On the basis of this, we problematize the representations of ethnic minorities, migrants and migration that the newspaper articles in question put forth and the fact that the Swedish and Finnish daily press treats the issues at hand as if migration is mostly an issue that can be relegated to the periphery of the elderly care sectors’ agenda. 

Att leva och sälja sin dröm : Livsstilsföretagaren mellan familjeliv, marknadoch politisk retorik

Living and selling a dream: Lifestyle entrepreneurship in the intersection between family, market and political rhetoric The article focuses on lifestyle entrepreneurship, characterised by a balancing work between personal lifestyle motives and economic motives. It builds on a qualitative study of business owners who have realized a life dream of starting a countryside business in the tourism and hospitality industry in Sweden. Through the notion of ”balancing work”, the analysis focuses on the tension between a personal life sphere and a market. In particular, the analysis highlights how the notion of ”the life dream” emerges as a narrative practice of self-realization, simultaneously as it is offered as an experience product. The analysis demonstrates how the entrepreneurs balance between personal stories of togetherness and marketing practices, between images of right and wrong commodification, and between constraining working conditions and a popular image of the successful entrepreneur, reinforced by a political discourse on rural entrepreneurship. It is concluded that balancing work between personal identities and economic practices is a practice of valuation, offering new insights into working conditions and markets situated in the intersection between markets and personal life spheres.

Organisationer, ojämlikhet, migration : förändringar av den etniska arbetsdelningen i svensk byggnadssektor

Organizations, Inequality, Migration – Changes of the Ethnic Division of Labour in the Swedish Construction Sector During the 1990s the number of migrants from Eastern Europe increased in the Swedish construction sector. This article examines how this change was initiated by changes in the organizational population in the construction sector. The gradual enlargement of the European Union changed the institutional framework for organizations in Sweden. This created increased opportunities for new organizational forms in the construction sector. The specific niche of the new organizations was to recruit and hire out workers from Eastern Europe that were paid lower wages than Swedish workers. The diffusion of this organizational form contributed to a change of norms and beliefs about what was legitimate and illegitimate when employing migrants. This implies that the inequalities that this organizational form introduces have gained increased legitimacy in Sweden. Or in other words, it has become increasingly socially acceptable to pay migrants lower wages than Swedish workers

För Sverige i framtiden : Bio-objektifiering av ny medicinsk teknologi

Taking Sweden into the future – Bio-objectification of new medical technology In this article, we analyze how contemporary discursive silences around new biotechnologies such as cybrids and induced pluripotent stem cells (iPSC), have been enabled by earlier policy processes in the area, e.g. boundary work around what is human and non-human, living and non-living, subject and object. The analysis of policy processes around xenotransplantations and the use of human embryonic stem cells, shows that the stem cells’ and xenografts’ “bio-identities” become stabilized through high expectations for the future, a lack of therapeutic possibilities and struggles over definitions of life. The policy processes around human embryonic stem cells and organs from other animals, are characterized by a normalization of certain understandings of ”life”, trust in scientific progress and it’s national financial potentials and a categorization of criticism as irrational. Through these “bio-objectification processes”, debate and decision making has been moved from a political and public context into ethical committees and research funding bodies. The article concludes by discussing consequences of this political non-handling of biomedical technologies and how these bioobjects could be re-politicized.

”En aktiemarknad för alla” : Integritet och marknadsomsorg i (själv)regleringen av den svenska värdepappersmarknaden

”A stock market for all”. Integrity and concern for the market in the (self-)regulation of the Swedish securities market This article deals with the transformation process that led to the substantial growth of the securities markets, and also led to a situation where Sweden became one of the leading countries when it comes to ordinary people investing in shares and mutual funds. The article discusses how social control and regulation of the market changed as a result of this process. A sudden and strong unanimity for knowledge tests in order for a stockbroker to be allowed to conduct brokerage, advisory services and asset management was the significant change in this transformation process. Knowledge tests were first introduced on a voluntary basis by the industry itself, but is now a mandatory requirement by the State. This article argues that the unanimity for knowledge tests best can be understood by studying the broadening of the financial markets. The broadening meant that more groups in society – with very varying capabilities – had started to place their assets in the security markets. They were encouraged to do so since this was considered to be the solution to the growing number of socioeconomic problems. This article is mainly based on market statistics and document analysis supplemented by interviews.