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575 Uppsatser om Steel eco-cycle - Sida 8 av 39
Miljöutredning på Care of Haus : För och nackdelar med ISO 14001
Today many companies and municipalities requires that their suppliers should have an environmental management system to work by. This might be one of the reasons to the increasing number of companies that today are implementing environmental management systems. Care of Haus is one of the companies that thinks that the benefits are bigger than the disadvantages, when it comes to environmental management systems, therefore they have made the choice to work with ISO 14001.The ISO 14001 standard is deified on the PDCA- cycle. PDCA stands for Plan, do check and act. Care of Haus choose to work with the ISO 14001 standard since it is a well-known standard for the companies that?s Care of Haus collaborates with and it is also well-known within their clienteleWithin this report an environmental investigation has been made.
Ny förbättrad layout vid Stena Stål AB : Kartläggning av plock- och tillverkningsprocesser samt personalens arbetssituation i dagsläget.
With today`s business world, it is very important to deliver the right product with right quality and quantity at the right time. By ensuring that the staff are happy and have the opportunity to work in a workplace with good structure, the company will be able to reach these parameters and at the same time maximize the efficiency.The project has been carried out at Stena Stål AB in Värnamo. The company's main task is to cut, store and deliver production steel and tool steel to processing companies in the surrounding region. Stena Stål AB in Värnamo is one of total 21 companies in the company group Stena Stål. Stena Stål is a part of the Stena corporate group which owns a total of eight different company groups that are spread in about 250 different locations in 14 countries.The purpose of this report is to give Stena Stål AB in Värnamo suggestions on how to design a new facility for tool steel.
Återvinning av industriell restvärme som värdeskapande process : En fallstudie på SSAB EMEA i Borlänge
The industrial sector accounts for a large share of greenhouse gas emissions. To reduce its negative impact on the environment is crucial in the quest for a sustainable future. In discussions of the industrial sector's impact on the environment guidelines have been highlighted as a tool to assist the industries in their efforts to change the relationship between the consumption of energy and production. This by improving energy efficiency and a shift to the best available technology. During the past 30 years the steel industry has reduced its energy consumption per ton of steel produced by 50 percent.
Dynamisk investeringsstrategi på den svenska aktiemarknaden
The purpose of this paper is to investigate if a dynamic investment strategy on the Swedish asset market can accomplish better returns then a static investment strategy. The dynamic investment strategy is created by incorporating business cycle predictors and firm-level variables to predict future stock returns. The predictive regression is calculated wih 60 months of observation (1999 01-2005 12) and is then used to estimate future returns for 23 months in the period 2004 01 -2005 11. The structure of the regression, with linear functions of ? and ?, goes back to Shanken (1990) and Avramov and Chordia (2005) has had success with the variables chosen.
Utvärdering av lämpliga metoder för vattengenerering
This master thesis has been performed at the department of Machine Design at KTH, The Royal Institute of Technology. The thesis has been a part of a global development project in collaboration with Luleå University of Technology, Lund Faculty of Engineering and Stanford University. Corporate liaison and sponsor has been Immerse Global Inc. The project was also performed on sponsorship from the Product Innovation Engineering Program, PIEp. The thesis is a representation of some of the contributions made by the authors.The lack of clean drinking water is one of the key issues facing the world today.
Samverkanspelare i icke bärande fasadelement
AbstractThe tests work is about the subject "synergism of steel and concrete."The construction sector is in a strong competition and the different companies in the PrefabMarket has ever tried to develop new design solutions that are efficient and environmentallyfriendly.The purpose of this report is to highlight different aspects of interaction and size up a columndimension and to examine its efficiency and load capacity as Eurocode 3 and Eurocode 4. A sizing chart that describes the relationship between the torque and normal force shouldalso be made of the interaction . .
Analys och beräkning av emissionsfaktorer för växthusgaser
An increased awareness about the global warming has created a demand for more information on how the climate is affected by different activities.This master thesis was initiated by Tricorona, a Swedish company that offers its customers analysis and calculation of their climate impact. Tricorona also supplies climate neutralisation with CERs, in accordance with the Kyoto protocol and controlled by the UN. This work demands updated emission factors for greenhouse gases. An emission factor gives information about the greenhouse gasintensity of a service or a product [kg CO2-eq./ functional unit].The purpose of this thesis is to examine how electricity, district heating, hotels, taxis, food and materials affect the climate and how emission factors for these areas can be calculated.This was done by reviewing and comparing different studies and by interviewing experts. The information was evaluated and recommendations on calculations and emission factors were made.The consumption of energy is the main source of greenhouse gas emissions for district heating, electricity, hotels, taxis and materials.
Husproduktion, kritiska skeden i produktion
As a newly graduated student in construction you rarely have as much knowledge as you wish you had. It is a complicated line of business that requires knowledge and understanding of both technical solutions and interaction between actors. It is impossible to be fully learned and with that much unknown it can be hard to know where to start. This report is one step in the right direction. It contains a planning that contains construction and installations for a one level house in Kiruna with its different choices motivated.
Utomhuspedagogik : Några lärares uppfattningar om utomhuspedagogik och erfarenheter av att undervisa i utomhusmiljö.
Syftet med denna studie var att undersöka lärares uppfattning om utomhuspedagogik och erfarenhet av att undervisa i utomhusmiljö. Respondentundersökningen utgick från de fyra frågeställningarna: Hur uppfattar lärare utomhuspedagogik? Vilka erfarenheter har lärare av att undervisa i utomhusmiljö? Hur uppfattar lärare elevers lärande i utomhusmiljö? Är det ett effektivt lärande som lärarna beskriver utifrån David Kolbs ?The Experiential Learning Cycle??Kvalitativa intervjuer användes som metod och genomfördes på tre olika grundskolor i mellersta Sverige. Den ena skolan har en miljö/naturprofil, de två andra skolorna har inte en miljö/naturprofil. Det insamlade materialet bearbetades med hjälp av en tematisk analys, samt utifrån David Kolbs erfarenhetsbaserade cirkel ? ?The Experiential Learning Cycle?.I studien redovisas lärarnas uppfattningar och erfarenheter, resultatet visar att lärarna uppfattar utomhuspedagogik som ett praktiskt arbetssätt där lärandet blir konkret.
Hårdfräsning i verktygsstål : Förslitning av skäregg
This thesis work is made by Torbjörn Johansson on Karlstad University for Uddeholms AB. The assignment in this thesis work was to investigate tough cutting in three different tool steels: Vanadis 4 Extra, Vancron 40 and Sverker 21. The research was to compare the wear of the tool after cutting in each one of the tool steel alloys. The research was also made to see if the tool cutting in Vancron 40 has a better wear than the tool cutting in Vanadis 4 Extra and also compare the results with Sverker 21. All three of these alloys are a part of Uddeholms AB:s range of products, and is used in applications like forming tools and knife tools. Vancron 40 is a powder steel with a very good combination of mechanical properties like ductility, adhesive strength and hardness.
Konstruktion av tvåhjulig balanserande robot
This report discusses the development of an autonomous system that can travel a distance of atleast 30 meters on two wheels. The system, the robot, detects black lines and stops if one isdetected. A remote control can be used to start and stop the robot. The robot is constructed ofmainly steel with smaller, more detailed, parts in plastic. A significant amout of time has beenused to enable the robot to balance on its own.
Fascia Panel Redesign
The purpose of this project has been to cut production costs for the fascia panels ofGetinge?s largest autoclaves. The cost for the stainless steel plates currently used is veryhigh. An alternative material solution could cut costs significantly.In addition, improvements have been made to the instrument tower which is a central partof the fascia panel. As a result of the new modular design in a new material theinstrument tower has been improved in several aspects..
Förklaringsmodell för cykelresor i Trondheim : Fysiska och demografiska faktorers betydelse för det geografiska resmönstret
The work examines geographical variations of bicycle use in Trondheim municipality with the aim to create an understanding of what influences the use of bicycles and explain the geographical travel pattern for cycling. The work focuses on the how physical structures generates different transports effects. Where bicycle travels in Trondheim municipality are undertaken is described by using network analysis in ArcGIS, based on aggregated data from the travel habit survey (RVU) in 2009/2010. Trondheim municipality is divided into smaller geographical units (zoner) whose characteristics are described by 19 variables, categorized into 6 groups; Distance, Land use, Topography, Bicycle Facilities, Road characteristics and Demographic factors.By linear regression analysis in SPSS and ArcGIS Spatial Analyst, an explanatory model is elaborated. The variablesdistance to the regional center, workplace density, percentage separate bike paths and hilly terrain explains 78 percent of where cycle journeys are undertaken.
EFFEKTIVISERING AV INTERN MATERIALHANTERING
Considering that the current technology is constantly improving, it becomes increasingly important to have an efficient logistics in a company to maintain profitability while achieving a competitive business. Efficient logistics may be accomplished by improving the internal materials handling. In this thesis the internal material handling of steel frames has been studied at a factory in Vaggeryd. The goal of this study is to investigate the problems that exist with the current production flow of products and provide suggestions on how it can be developed to reduce unnecessary handling and movement.The study has a deductive approach where the authors has been using literature studies parallel with empirical analyzes conducted at a company to achieve the purpose of the study. Documentation from the company and interviews with staff and observations form the basis for the data collection carried out.
Förbehandlingstekniker och LCA för rötning av organiskt avfall : Modellkonstruktion och Utvärdering med ORWARE
The goal of this master thesis project was to develop computer models of some plausiblepretreatment techniques and to assess the potential benefits/costs of using pretreatment andanaerobic digestion for waste management of organic waste from a system perspective. Forthis purpose a computer program called ORWARE has been used. ORWARE (organic wasteresearch) is a program for making life cycle assessments of waste management. As the mainpart of the project work the ORWARE system has been provided with three new models ofpretreatment techniques. The additions consist of: One model of pretreatment with ultrasound,one model of thermal hydrolysis and one model of a screw press.