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9710 Uppsatser om Process Industry - Sida 64 av 648
Effektiviseringspotential inom industrisektorn : Energibesparing vid frekvensstyrning av centrifugalpumpar ? en fallstudie
The project was performed at SiemensIndustry Drive Technologies with theobjective to provide actual values forthe energy savings potential withinSiemens scope of practice.In Sweden the electrical drives standfor about 30 % of the total electricityconsumption and about 60 % of theelectricity consumption within theindustry. During the pre-study phaseelectrical drives with pump applicationswere identified as large energy users.Because of this a case study at one ofSiemens customers, Stora Enso Fors wasperformed. The system that was evaluatedduring the case study was a throttledsystem with a centrifugal pump forpumping pulp.The results yielded that a saving ofover 50 % could be achieved by replacingthe throttle valve with a variable speeddrive, a frequency converter. Thepayback period was two years and twomonths and the present value for thetotal life cycle cost of the variablespeed system was 662.566 SEK lower thanfor the throttled system. As aconsequence, Stora Enso Fors is advisedto invest in a frequency converter forregulation of the system.The general conclusion is that a focuson system efficiency is the mostimportant factor in energy efficiencyprojects and that the system regulationmethod has a large impact on the overallsystem losses and hence its efficiency.Energy efficiency potential forthrottled systems with centrifugal pumpsis large and significant economicalsavings can be made through investmentswith short payback time..
CODP Co operative design process - from urban strategy to detail
This project investigates the cooperation between architect and engineer. The context of the investigation is the design of buildings for a sustainable society. The goal of the project is to further the development of the sustainable built society by increasing the knowledge of the interdisciplinary cooperation between these two fields. The focus is a close cooperation already from the start of a project. By involving both fields in the early design stages it is thought that the knowledge and skills of each field is better utilized.
Den Digitala teknikens påverkan på resebranschen och dess marknadsföring
The intention of this essay has been to investigate how the new digital technology has affected the tourism industry and marketing, as well as how travel agents and tour operators adapt to this. We also aimed to get a broader view of how the future might look like when it comes to marketing and virtual service landscapes. We decided to base our research according to these following four questions:? What affect travel agents? way of adoption to the technical development?? What purposes do the travel agents have for building up their virtual service landscape?? How much does the travel agents emphasize on digital marketing?? What can travel agents do to better adapt to the technological development in the future?We have chosen to use a qualitative research for this essay. The reason for choosing a qualitative research was to gain a wider understanding that would represent a big part of the changes of technology development.
Moderna tider : modernitet i Visbys bouppteckningar och press 1880-1910
It is a difficult task to define the little word ?modernity?. One may argue quite a lot about what modernity is as well as when modernity breaks trough. The burgess class was the group who initiated modernity in most cases. Since these people mainly dwelled in the cities it was in the cities were modernity started.
Det är en het potatis! Lärares uppfattningar om vilka bedömningskriterier de använder vid betygssättning i de naturorienterande ämnena
The purpose of this research is to survey and describe some science teachers? conceptions of which assessment criteria they use at the marking process. Questions which are relevant for this research are the following: 1. Which assessment methods form the basis for science teachers? marking process? 2.
Att komma ut: en studie av hur unga vuxna har upplevt utvecklingen till en homosexuell identitet
The purpose of this study was to explore experiences of the process of developing a homosexual identity during childhood. We wanted to examine the experiences, feelings and thoughts that young adults, identifying themselves as homosexuals, had growing up in Sweden.For the study a qualitative method was used and nine interviews were made with young adults in the ages of 18 - 30. They answered our questions about their process of developing a homosexual identity, about their friends, family and school and about the society in general. We analysed the material from the interviews using the theory of the coming-out-process as presented by mainly Månsson and Hilte (1990).The main result from the study was that there were some difficulties for our respondents to become aware of their homosexuality and reveal their homosexuality to others. Most of our respondents experienced anxiety and/or fear as they were becoming aware of their sexuality but did become conscious about their homosexuality and accepted it before turning 21 years old.
Naturvetenskap och Bilderböcker : Naturvetenskaplig Begreppsbildning och Grundläggande Naturvetenskapliga Matoder
Preschool has a long tradition of using picture books, both as entertainment and as a resource for educational activities. In science there are two main application areas. The first one is science concepts and the second is to teach basic science process skills. These skills, observing, communicating, inferring, classifying, measuring and predicting reflects the methods used by scientists. Picture books potential to put science concepts and activities that promote the use of science process skills in a meaningful context, recommends using picture books for this purpose.
Stress, kreativitet och problemlösning : En kvalitativ studie i hur vi lo?ser problem under stress och vad detta kan inneba?ra fo?r designprocessen
Problem solving is a big part of design, however a lot of emphasis is put on creativity in research related to the effects of stress. Research has shown that the amount of stress we feel affects idea generation. Stress may also affect the ability to solve problems, however the researchers don?t seem to agree about what the effect of stress actually does.The study was made through experimental sessions where the respondents were asked to solve 4 matchstick puzzles of similar difficulty. Depending on their outcome they experienced more or less stress.
Identifiering av avgo?rande faktorer fo?r optimal intern bygglogistik : En fallstudie av tre byggarbetsplatser
Unlike the manufacturing industry, the construction industry is always in motion. Each new construction project brings new opportunities, and it requires a new plan, new organisation, and new suppliers. All construction projects are very different from each other and in terms of a logistical perspective, this is very weak as it makes it difficult to get a flow in the production and to make flawless routines. The way the external and internal logistics are managed, can effect the final product in the time taken to produce it, the quality of the product and the profit made from it. When internal logistics are handled poorly, it could result in materials not being at the right place at the right time, or information not going through to the right person.
Rening av avloppsvatten efter skärprocess
ABB I-R Waterjet Systems combines the robotics and motion expertise of ABB
Flexible Automation with high-pressure intensifier/pumping technology from
Ingersoll-Rand to provide and continue to develop innovative waterjet cutting
systems for global markets.
The purpose of this assignment is to develop a process water purifier. The
purifier should be applicable as an option to ABB I-R?s production cell
Cutting-Box.
At first hand the process water should be purified well enough to let out in
the municipal sewage system, but the ultimate solution is purifying the process
water to the range that recycling is possible.
When investigating the different principle of purifying water, a research of
different products and their manufactories was done.
These different products were compared and the principle of filtration was the
most applicable, as most of the products were designed for far larger
applications.
As the process water contains quite large amount of particles, it is necessary
to perform the filtration in different steps.
The process water purifier is therefore composed of a module of coarse
filtration and one of micro filtration.
In the module of coarse filtration the mainly amount of fibres and particles
are eliminated. They are kept back in the container unit with the larger
fragments and dumped with these when the container is emptied.
In the module of micro filtration the filtration is performed in two steps.
In the first step particles larger than 50?m are eliminated, in the second step
the micro filter is setting the range of purifying, in this case 10?m.
Politiskt Ledarskap i Venezuela : Om ledarskapsomgivningens effekt på ledarskaps- och beslutsprocessen i en övergångsdemokrati
The aim of the study is to examine how the executive leadership and the decision-making process are shaped by the leadership environment in a transition democracy as Venezuela. The questions I intend to answer are: What kind of leadership environment surrounds the leadership and what kind of consequences does it have on the leadership and the decision-making process in Venezuela? To answer my questions I will use the literature: Political Leadership in Liberal Democracies (Elgie, Robert 1995, London: Macmillian), together with the method ?The cultural determinist school of history? by Tomas Spencer, later reproduced by Kellerman. The leadership environment provides unique opportunities for a leader to gain control over the decision-making process. Institutional structures and the needs of the society are major parts in determining how the political leadership is exercised.
Betalningsmodeller för det svenska elnätet : Vilken modell kommer att fungera bäst för konsumenten?
Recent years there has been discussed how the critical situation in the housing market threatens the Stockholm region's growth. The thesis objective is to examine whether there is a scientific link between the lack of housing supply and growth. The thesis also intends to identify solutions for increased housing construction, for instance by examining the conditions for a greater regional perspective and influence on the region's housing supply. The thesis empirical study is based on semi-structured interviews with representatives from the Government, municipalities and the housing industry.In Sweden, research on the relationship between housing shortages and growth has not been conducted to that extent it can be said to exist scientific evidence regarding the growth threat. However, in Britain and the U.S, empirical studies show that a lack of housing supply has hindered growth through negative impact on countries' gross domestic product.
EC Legal Regulation of the Insurance Market; Challenges of Integration
Over the last decade, the private insurance market has undergone a stable growth in turnover and growing demand for insurance products in all Member States of the European Union. Therefore, the creation of a single market in insurance will enable consumers to have access to wider choice of insurance products, and insurance companies to gain access to markets in various Member States and compete effectively. The EU legal framework for the insurance industry embraces the Treaty freedoms of services, establishment and capital, the EC Directives and the ECJ case-law. The present thesis identifies numerous factors that hinder the Community insurance market integration and offers possible remedies. The summary of the market obstacles is all-inclusive and reflects the responses to the questionnaires and the Commission surveys.
Biogasproduktion genom tvåstegsrötning av drankvatten
During the 19-century a global warming has been observed, which includes increases in global air and ocean temperatures, widespread melting of ice and snow, and rising global sea level. There is a clear connection between emissions of greenhouse gases caused by the human and the increase in temperature. Climatic changes caused by global warming can be stopped trough decreased emission of fossil fuels, for example by an increased use of biogas. Biogas is a renewable energy source which is produced through anaerobic (oxygen free) digestion of organic material. The gas is a mixture of methane (CH4) and carbon dioxide (CO2) and can be among others used as fuel in vehicles.
Due Diligence - En resurskrävande process : En checklista som mindre privata aktiebolag kan följa innan de ska utföra en Due Diligence
Abstract ?Due diligence - A resource demanding process?Date: June 8th 2012Level: Master thesis in business economics, 15 ECTSInstitution: School of Sustainable development of society and technology, Mälardalen UniversityAuthors: Erdinc Kirik Pär Matsson 11th January 1987 31th May 1985Title: Due diligence - A resource demanding processTutor: Staffan BoströmKeywords: Due diligence, the acquisition process, acquisitions, business valuationResearchquestions: What are the main factors that Bank X, Nordea and Almi is focused on an examination of a due diligence for an acquisition, focusing on private limited companies?Does the approach between the various banks and Almi differ?Purpose: The purpose of this paper is to create a checklist for private limited companies to use in the context of application for fundingMethod: The study was based on a qualitative study, based on primary data in terms of interviews in the subject of due diligence. Secondary data used in the study consisted of relevant literature and scientific articles.Conclusion: The study showed that the respondents in general focuses on the same areas within Due diligence. The most important point which the respondents agreed on was profitability and repayment capacity. In overall, all elements in a Due diligence process that has an impact on profitability is important to examine.