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3173 Uppsatser om Heating systems - Sida 62 av 212
Utveckling av hygienfunktioner i diskmaskiner : Desinfektion med ånga
This report is the result of a thesis work in Integrated Product Development, regarding hygienic features in dishwashers and especially disinfection by the use of steam.The thesis is performed at Electrolux Primary Development Dishcare in Stockholm and in collaboration with the Department of Machine Design at the Royal Institute of Technology.The targets of the thesis are to prove the advantages of a technology suitable to implement as a hygienic feature inside a dishwasher and to realize a functional prototype of a differentiated hygienic feature that does not exist on the market today.The process followed to perform the thesis is the process defined for Electrolux Primary Development.The technology chosen for development is disinfection by heating the water on the surface of the dishware, by the use of steam.A number of tests on how steam behaves when injected into the dishwasher tub have been performed, providing the results that have been taken in consideration when designing the prototype.The prototype consists of a pipe system provided with nozzles to eject the steam into the upper parts of the dishwasher. Tests of the final prototype show that thermal disinfection of water in a dedicated area of the tub can be reached within 9 minutes. The operation requires 0,17 liters of water and consumes 0.2kWh..
Naturhänsyn på certifierade privata skogsfastigheter : en jämförelse i praktiken mellan FSC och PEFC i Sydsverige
Nature conservation on certified small private forest owners- a comparison
between the two certification systems FSC and PEFC in southern Sweden
Today two different certification systems are used in Sweden to certify forest, FSC (Forest Stewardship Council) and PEFC (Pan European Forest Certification). During the last years certification of forests in general and different certification systems have frequently been debated. FSC is a globally widespread system and about 10 million ha out of 23 million ha Swedish forest is FSC-certified. The FSC-standard is mainly used by major forest companies and to some extent also by smaller private forest owners. PEFC is a European system and about 2 million ha Swedish forests is PEFC-certified today.
Hur kan Electrolux Laundry Systems, Ljungby, uppnå ett effektivt monteringsarbete?
SammanfattningElectrolux Laundry Systems är världens ledande tillverkare av professionell tvättutrustning.ELS har produktionsanläggningar i Frankrike, Danmark och Sverige. Det pågår ett förändringsarbeteinom organisationen som innebär en flyttning av produktionen i Danmark tillSverige.Fyra nya produktgrupper ska börja produceras i fabriken i Sverige vilket innebär en nymonteringsanläggning. Den första produktgruppen T4190 kommer inom en snar framtidatt börja produceras i Sverige.Syftet med arbetet är att ge förslag på hur lagring, hantering samt beställning av komponenterkan ske inom monteringsanläggningen för torktumlare för att uppnå ett effektivt monteringsarbete.Utifrån syftet har följande problemformulering utarbetats.? Hur kan komponenter hanteras och lagras på ett sätt som underlättar vid monteringenav torktumlare. Denna huvudfråga delar vi in i ett antal under frågor som:? Hur kan ingående komponenter lagras för att effektivisera tillverkningen av torktumlare?? Vilken lagertyp kan tillämpas?? Hur stora bör partistorlekarna vara för att uppnå effektiv tillverkning?? När och hur bör beställningen av komponenter ske?Med utgångspunkt i studiebesök i fabrikerna i Danmark och Sverige inhämtades relevantinformation genom egna observationer och intervjuer.
Mark röjd från sten : En studie av förklaringar och tolkningar kring röjningsröseområden
AbstractThis essay discusses different explanations and interpretations of what characterizes large areas containing clearance cairns (cairn fields). Results from the analyses show that there are different explanations about when and why cairn fields and clearance cairns occur. Explanations vary from introduction of the wooden ard in the early Bronze Age to the introduction of rational hay-making in the Roman Iron Age. There is, anyway, relative agreement considering why and when cairn fields were abandoned. The reason suggested is an increasing pasturage with the consequence of reducing soil to poverty during the period of the Great Migration or in the Viking Age.The most likely cultivation system in cairn fields is a system consisting of both intensive and extensive characteristics. The latter coincides with the probable mobility of settlements.
Kyla på Swedavia Stockholm Arlanda : Kartläggning av nuvarande fjärrkylasystem och framtida utvecklingsmöjligheter
Arlanda airport is Sweden?s largest airport. The demand for comfort cooling of the airport?s buildings is high and is mainly provided by district cooling. District cooling is based on the same principle as district heating.
Energisystemanalys av ABB AB LV Motors
With a larger awareness of the climate changes and increasing electricity prices, energy efficiency measures in the industry have become more common. By rationalize the activity and by the same time decrease the emission of greenhouse gases the company can both save money and reduce negative environmental impact. For the Swedish industries the electricity price have traditional been relative low, which has resulted in a considerable larger usage than other European countries. By a deregulation of the European electricity market the electricity price will level off between the countries, which will cause a higher electricity price in Sweden than we are use to. To prevent that the Swedish industry don?t lose competitiveness against the other European countries, it will require energy efficiency activities in all different forms.ABB Sweden has decided to decrease their total energy usage with five percent in two years.
Att erbjuda sanningens ögonblick : En undersökning av bokförlaget Novellix kommunikation och koncept
The Library of Uppsala University has decided to change their classification system from the Swedish SAB system to the American Dewey Decimal Classification. One of the main reasons for this decison was that Kungliga biblioteket also has made an exchange between these systems. Due to that, the national bibliography of Sweden classifies Swedish documents according to Dewey Decimal Classification and the SAB system is no longer maintained. A transition to Dewey Decimal Classification will enable Swedish librarians to import foreign catalouge posts and classification codes and will provide them with a common standard between their libraries and other libraries due to the use of the same international classification system. It is disputed whether the Dewey Decimal Classification is equally suitable for all subjects.
DDC:s avdelning 150 : en analys av psykologins klassifikation under perioden 1932-2011
This master?s thesis focus on Dewey Decimal Classification during the period 1932 to 2011, where the classification of the psychological knowledge domain is analyzed and discussed. In the light of the recent swedish switch from the swedish classification system SAB to DDC, this research area deserves prominence. The aim of this study is to investigate how DDC represents the historical development of the psychology subject with its underlying epistemology, to identify and analyze values and prejudice, and to analyze problems with DDC?s classification of psychology in relation to three other classification systems.
Utvärdering av nya metoder för att finna och värdera risker i ett system
Examensarbetet är utfört vid BAE Systems Bofors AB i Karlskoga. Projektet har gått ut på att utvärdera den nya teorin STAMPoch testa det tillhörande verktyget STPAinom säkerhetsarbete mot det avgränsade ARCHER-systemets delsystem granatgrip-/lyftdon.I dag blir systemen mer och mer komplicerade och de nuvarande metoderna har inte utvecklats i samma takt för att göra en grundläggande säkerhetsanalys då många av olyckorna härrör från oförutsedda interaktioner. Teorin och verktyget är en nyutvecklad metod för att identifiera och värdera risker i ett system eller en produkt. Företaget har ännu inte satt sig in tillräckligt i professorn på MIT, Nancy Levesons rapport som ligger bakom denna nya metod för att arbeta med riskbedömning. Eftersom det är en relativt ny teori inom säkerhetsarbete så finns det inte speciellt mycket forskning att tillgå och antalet källor som finns tillgängliga är få.
Viking Eggeling och Diagonalsymfonin : en dematerialisering av konstobjektet
The aim of this thesis is to study Viking Eggeling?s artwork Diagonal Symphony together with Eggeling?s own art theoretical writings. This method of reading Eggeling?s art theoretical writings with the aim to try and create a deeper understanding of his art and especially Diagonal Symphony is a new approach in Eggeling?s art historical discourse. The thesis starts with a description of how the field of art history has understood Eggeling and his art primarily through art historical research aimed at Hans Richter.
En studie av hållbara alternativ till odlingstorv : - vid jordförbättring inom trädgård
Pharmaceuticals are environmental pollutants that are a major threat to aquatic ecosystems and very little is known about their ecological consequences. In this study growth, survival and behaviour (sociability, activity and boldness) of perch fry (Perca fluviatilis) were examined in order to study the possible effects of exposure to a benzodiazepine anxiolytic drug, Oxazepam, during embryonic development. The study tested following hypotheses: (1) perch growth is affected positively by exposure during embryonic development; (2) early perch survival is affected positively by exposure during embryonic development; and (3) boldness and activity increases while sociability decreases in perch fry exposed during embryonic development. Embryos of naturally spawned perch were exposed to water with two different concentrations of Oxazepam. The embryos were exposed during different parts (24-hour periods) of the embryonic development, because embryos may be more vulnerable at certain times during embryonic development and/or because the exposure at different times can produce different effects.
Utveckling av automatiserade tester
Testning är den aktivitet där man verifierar och validerar ett IT-systems krav och exekverar det i syfte att hitta fel. Testning kan utföras både manuellt och automatiserat, genom att utveckla ett system som exekverar testerna åt sig.I detta examensarbete beskriver jag hur jag designar och utvecklar en IT-artefakt som automatiskt kan exekvera tester av ett annat system..
Google digitaliserar bibliotekssamlingar En analys av hur biblioteksvärlden reagerar på Google Book Search
The wide spread of the Internet and new information technologies in recent years has come to effect how libraries manage and disseminate information. Search engines like Google are widely used by people who often find the information retrieval systems of libraries to be too complicated. In 2004 Google announced plans to digitise five major library collections. Organisations representing the publishing industry and authors have since then filed lawsuits against Google claiming that Googles scanning of library books infringe the rights holders copyright. Due to Googles potential impact on libraries this thesis aims to examine how Googles digitisation project, Google Book Search, has been received in the library community.
Energieffektiviserande åtgärderpå Robertsfors VA-nät : En förstudie av vilka energieffektiviserande åtgärdersom kan göras på pumpstationer och reningsverk
The objective of this work was to introduce measures to reduce energy and water demand at Gävle Söder 17:10. To succeed, this energy audit has been made. The work is based on collected statistics from the property owner Norrporten, measurements, literature review and through consultation with experts in the field. Two models, one for each building, have been created in the simulation program BV2 to estimate the potential of energy measures based on the collected information. The models in BV2 have been verified against the statistics of the energy consumption.With the help of calculations and simulations, seven cost-effective measures have been identified.
Förstudiens betydelse : Granskning av ett stagnerat IT/IS-projekt på ett tillverkande företag
Vårt examensarbete har genomförts på företaget Electrolux Laundry Systems (ELS) logistikavdelning, Logistics Center Ljungby (LCL). Under det senaste året har företaget haft motgångar vid ett IT/IS-projekt inom sin logistikavdelning (LCL). Uppsatsen har således syftat till att beskriva och analysera varför IT/IS-projektet har avstannat, och ej nått implementering. För att uppnå syftet har vi utgått från en, i stort sett, kvalitativ ansats där primärdata har insamlats genom metoder såsom intervjuer och deltagande observationer medan sekundärdata inhämtats i form av dokumentundersökningar och offentliga dokument. Resultatet av studien har utgjorts av deltagande observationer på fallföretagets logistikavdelning, LCL, samt intervjuer med olika verksamhetsnivåer. Detta har påvisat bristande kommunikation och direktiv samt fallföretagets brister i förstudiens utförande vad gäller förankring av projektet, planering av tid, resurser och kostnader samt formulering av krav.