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3910 Uppsatser om Energy production - Sida 45 av 261
Karaktärisering av avfallsbränslen
All products will eventually end up as waste, which in a sustainable society has to be handled in an efficient and environment friendly way. This report focuses on waste fractions meant for combustion, often difficult to characterize. However, more homogeneous fractions that are treated biologically are also discussed.The study concerns the region of Borås, Sweden, where the waste plant Sobacken has provided a good starting point. On this site, fuel to the Energy-from-Waste plant of Borås Energi is prepared and the biological waste is treated through anaerobic digestion.One important part of the study has been to collect experience-based knowledge from the technical staff at Sobacken and Borås Energi. This information was compiled into an overview of wanted and unwanted fractions to the preparation plant and the boilers respectively.
Kunskapens konstellationer: om ämnesanalys och tvärvetenskaplighet
The aim of this study has been to discuss ideas of knowledge within classification theory and subject analysis in the light of theories of fundamental changes in the production of scientific knowledge. Guiding questions have been: How have the conditions of knowledge production changed? How has interdisciplinarity as part of this development evolved? What assumptions lie behind theories of classification and subject analysis? How do these stand in relation to the alleged changes in the production and understanding of science? Three works about the changing conditions for knowledge production and the growth of crossdisciplinarity have been presented and discussed. These works stress the loosening up of boundaries between traditional knowledge domains and open up for discussions about how to organize knowledge production in the light of these changes. In the study it is argued that their works also could open up for discussions about the way knowledge is organized for retrieval purposes.
Lean i arbetsprocessen för projekledning
This report presents the results of a thesis in which the department PL Hus at Grontmij AB isstudied. The study has been done in order to locate problem areas in order to streamline andimprove the quality of working. The study was done by an engineering student from theDepartment of Industrial Management at KTH on behalf of Grontmij AB. The project extendedover a period of 20 weeks during spring 2011.In addition to the Department itself has two project managers in two different projects beenfollowed. The method used has been participant observation and was used to be able to comeclose to reality and thus find problem areas where there are opportunities for development.Validation was made through comments and opinions from workers at Grontmij AB, afterreading the reports analysis.Based on a system and holistic approach has parallels been drawn to the production systems suchas TPS (Toyota Production System) and lean production.
Hjulspår på banken : En kvalitativ fallstudie om vägarna mellan lean och motivation hos anställda i tjänstesektorn
Background: Since the coining of the phrase lean production by Womack, Jones and Roos in 1990, this mass production system of Japanese origin has been implemented in a multitude of organizations throughout the world, the results being predominantly positive from a financial point of view. The possibly negative effects of mass production on worker motivation have been discussed since quality of work life became an important political issue in Sweden in the 1970?s. As the popularity of lean service is now increasing, there are still unresolved issues regarding the transferability of a mass production system to the service industry, particularly with regards to the motivation of service employees.Purpose: The purpose of our thesis is to study the lean system of a Swedish bank, SEB Way, from a management- as well as an employee perspective in order to describe how lean may affect the work motivation of service employees.Research procedure: The study is empirically based on observations and interviews on multiple hierarchical levels at SEB. We have conducted a total of 13 interviews with front line employees at SEB, with the central SEB Way team as well as two external lean specialists.Results: The study indicates that SEB Way has little direct influence on the intrinsic work motivation of the SEB front line employees, as work motivation was present prior to the implementation of lean.
Konsekvenser för äggproducenter efter förändring i djurskyddslagen avseende inhysning av värphöns :
The avowed aim in this project was to see how the Swedish egg production is today. My first question was if the Swedish egg producers egg production turn a profit. I have done five after calculation at five different egg producers with different systems from case to case. The difference has been the living system, the fodder and the egg price.
They made a report in Uppsala, Sweden (Hoffman & Andersson, 1996), where the look forward to a Swedish cage ban and made calculations after that coming ban. After that they lift the Swedish ban of cages and the egg producers could invest in new cages who called the decorated cage.
En jämförelse av sitkagranens (Picea sitchensis) och den vanliga granens (P. abies) produktion :
Sitka spruce (Picea sitchensis) is a tree species that have its natural distribution along the
West Coast of North America, from Alaska in the north to northern California in the south.
Sitka spruce is a typical coastal tree species that can reach heights up to 85 meters and occurs
in single pure as well as in mixed stands.
The main purposes of this study were to describe the Sitka spruce growing characteristics and
the volume production in comparison to spruce (Picea abies). The possibility to predict future
volume production by using prognosis tools designed to be used on spruce were also studied.
The material that has been used in this study are permanent sitka trials established by the
Faculty of Forestry fixed Sitka trials and also material gathered in this study.
A literature study was also carried out in order to determine the Sitka spruce growing
characteristics.
Sitka spruce has a high adaptation and a high volume production on a broad scale of soil
types. The tree species is a pioneer species that has a fast early growth and in combination
with sharp needles it is less susceptible to animal browsing than spruce. The factor that is the
single most limiting factor for where the Sitka spruce can be planted is frost. This factor can
be limited by using plant material with a well-suited provenance.
According to the literature, the Sitka spruce has an average total volume production that is
between 20-40% higher than spruce.
Att lära av varandra : En kvalitativ studie om användningen av practice research.
The aim of this study was to investigate the production of knowledge that can emerge in the use of Practice Research by Mirror method. This by finding out what it is in the practical work that leads to the production of knowledge and how knowledge production takes form. The empirical data that form the basis for this study is recorded group within the Mirror method discussions and a focus group interview with social workers who participated in the discussions. Those who have participated are social workers with experience from working with financial aid support and only real cases have been used in the discussions. The results have been analyzed according to Lipsky's theory of street-level bureaucracy and their discretion and Fook and Gardner´s theory of critical reflection.
En jämförelse av RDF och avfall som förbränningsbränsle
In the EU the amount of waste increased by 14 percent during the years 2000 to 2010. EU?s target to reduce waste generation runs parallel with the aim of increasing the efficiency and profitability aligned with energy recovery. In Sweden the energy recovery through incineration is increasing steadily, and 46 percent of the municipal solid waste (MSW) is treated by combustion. This report aims to examine the profitability of processing MSW into Refuse Derived Fuel (RDF) from an economic-, energy- and environmental perspective.
Tuta i lurendrejeri
Purpose: Exploring the relatively new technology of convolution reverb, to gather knowledge on its limitations when used practically in the production of pop music, and from these findings to learn about applications in other performing arts and sound design.
Methodology: This is a case study of creating convolution reverb by doing impulse responses (IR) and then applying them to studio recorded pop music. The empirical data consists of the final song results, notes and journals from during the process and the comparisons, as well as established litterature on acoustics, psycho-acoustics and music production.
Results: Convolution reverb can widely and freely be used in the production of music and other audio-based art forms, since our study shows that the result of a well-made impulse response from a particular room is indistinguishable from music that is actually played and recorded in the same space..
Det antropocentriskt styrda Sverige : En undersökning om riksdagspartiernas miljöideologiska närings-, miljö- och jordbrukspolitik under mandatperioden 2002-2006
This essay examines the environmental ideological direction of the Swedish parliamentary parties through the private members motions directed to the committee of industry and trade and the committee of environment and agriculture during the governmental time from 2002 to 2006.The environmental ideologies explained is anthropocentrism, ecocentrism and biocentrism. Based on the ideas of these three ideologies main points the private members motions directed to the committee of industry and trade and the committee of environment and agriculture, also matching the search words environment and energy, was compared and analysed.What has emerged is that all parliamentary parties express a desire to create an Energy production and producing guide lines which are stringent environmentally and matches the safety requirements. Although the approach to environmental and safety standards differ significantly between them. Basically all Swedish parliamentary parties are more or less anthropocentric in its arguments, which in short terms means that they estimate natures and animals value through their usability for humans or based on their contribution to human feelings of wellbeing.The Centre Party and the Green Party shows hints of weak ecocentrism because in many cases they put animal intrinsic value high, but the human value higher. Moderates are predominantly anthropocentric but they also express some hint of biocentrism in one statement concerning research in order to reduce and rebuild environmentally destroyed areas.
Samverkan mellan nya cementtyper och tillsatsmedel för betongtillverkning
Cement manufacture accounts for 3-5 percent of total global carbon emissions. There is a growing interest in reducing the environmental impact and conserve limited natural resources. In cement production, clinker productions consume 87.5 percent of the total energy consumed in the cement manufacture.Cementa has since many years, focused on reducing the environmental impact of cement production. The work has involved the entire production process from selection of alternative fuels to the development of cement with less clinker content. During 2013/2014, two new types of cement (Bascement and CEM II / B) will be introduced to the Swedish market.
Information ochmaterialflödesförbättrings analys
This examination work is performed at the institution of industrial economy and production at Jonkoping technical university, for JELD-WEN Door Solutions plant in Forserum.Today the focus in the company is on to reduce their inventories binding of capitals as well as inventory of products and that includes to get a good control of the supply and handling of material which is of great importance.JELD-WEN Door Solutions is one of the worlds leading producers of windows and doors and the head-office is located in Oregon, USA.A great number of wooden doors are manufactured by the company in varying of constructions, classifications and performance.The production of the plant in Forserum has a project- and customer focus manufacturing where only internal doors are produced. The overall market they are concentrated on is to different institution such as schools, hospitals etc.The purpose of this work is to investigate possibilities to improvement of material- and production control at JELD-WEN. The report will handle the master production schedule to and from the production divisions within manufacturing industry. Focus will be on the way for information- and material flows from arrival, transport within the company and further on to customers.Further a map of the flow was performed which gave a clearer picture of the connection between the flow of information- and material for the manufacturing process. On the basis of the mapping of the flow, the group discovered that the flow of material had some improvement potential.
Kokvigeproduktion baserad på köttraser : en fältstudie
Most of the beef production in Sweden has been integrated with milk production. Since the 1990:s, the number of dairy cows has decreased. A specialised beef production has developed in purpose to compensate for this decrease. The consumption of beef have increased in the last decade, but the Swedish production has no followed this trend. In 2004, the percentage of beef self-sufficiency in Sweden was 60 %.
TOC and TQM Utilized in a Mass Customization Production Environment
Background: Mass customization has been identified as a competitive business strategy by both companies and academics because of its ability to incorporate the voice of the customer into companies? products and services. Although mass customization may sound appealing, the strategic concept is still developing and firms adopting this business strategy face several challenges. Production concerns are of high relevance since mass customization implies a high level of customer involvement in the product design. Since the areas are closely linked it is reasonable to ask how a mass customization strategy affects production concerns.
Handarbetets sociala rum - om emotionshantering och kollektiv identitet i handarbetsrörelsen
The purpose of this thesis is to investigate emotions and collective identity in the handicraftmovement. Which are the collective identities of craft movement, and is it possible to speak ofan over all collective identity among the handicraft people? I will also examine the emotion workboth on individual and group level.Eight qualitative interviews were conducted to achieve the aim of this thesis. Research haspreviously drawn attention to handicraft from a gender and a historical perspective but neverfrom an emotional one. The theoretical framework derives from an emotion sociologicalperspective where Collins interaction rituals, emotional energy and Hochschild?s emotionmanagement is the main theses.