At present Getinge can offer a new generation of trolleys that they produced in 2011. The trolley used to Getinge various autoclaves and has the primary task to help the user/sterilization personnel to transport shelves or baskets, with or without cargo, from a packing table to the autoclave. The purpose of this thesis has been to develop a primary solution how the docking process between Getinge trolleys and autoclaves can be improved. The work has in most part followed Fredy Olsson principle and primary construction method. The work has included product research, study visit and development of a requirements specification, to satisfy Getinge, their clients and circumvention products requirements. Using this information, it was taken up various product proposals were screened out by testing prototype and study of Cad-model, until only one product suggestions residue. The product proposal led to a primary solution that was designed and calculated in CATIA V5 and a simple prototype of the primary solution. The work resulted in a new loading area to Getinge trolleys. The loading area will help users on sterilization stations through an increased precision tolerance, which facilitate the docking process between the trolley and autoclave.

Diss. Linköping : Linköpings universitet, 2005.

<p>This Bachelor Degree Project is a study about possible improvements of the efficiency at sugar mills and ethanol distilleries by using a decanter centrifuge. The report handles background, purpose and result including conclusions and discussions. The implementation of the decanter at site is fully described, including problems and solutions during the project. With the increased use of ethanol as a bio fuel, the question about bio ethanol’s energy balance have become of more importance. As a part of the project a study about the energy balance have been carried out. In our research we did only find one (more or less) accepted investigation concerning ethanol energy balance from sugar cane. All other found information about the subject refers to this single assessment which is quite remarkable.</p><p>The sugar and ethanol production processes are almost similar until after the clarifier step. The clarifier is a gravitational settling tank where the juice is clarified and then sent to evaporation (sugar process) or fermentation (ethanol process). The by-product called molasses still contains some sugar and is therefore sent to a rotating vacuum filter to extract the remaining sugar. Rotating vacuum filters has high energy consumption, is dirty, creates a lot of smell and needs a lot of space. The objective with the study was to investigate the possibilities to replace the rotating vacuum filter with a decanter centrifuge and achieve better efficiency in the production. A decanter is a centrifuge that separates solids from liquids. The decanter is based on the simple theory that solids fall to the bottom due to the force of gravity. The decanter centrifuge works with this principle but the difference is that the gravity force has been replaced by a centrifugal force.</p><p>The result of our test gives a good indication that the decanter is a good investment. The payback time is short and the investment gives many positive side effects such as less energy consumption, better working environment and it needs less space in the factory.</p> / <p>El proyecto para el título de bachiller se basa en un estudio de las posibles mejoras a la eficiencia en los ingenios azucareros y destilerías de etanol mediante la aplicación de un decantador de centrifugación. El informe explica los antecedentes, las partes implicadas y de la finalidad del proyecto. El procesamiento del azúcar es descripto en breve, ya que el proceso es similar al del etanol hasta después del proceso clarificador. El clarificador es un tanque de solución gravitacional donde el jugo se aclara y luego enviado para a la evaporación (proceso del azúcar) o para la fermentación (proceso del etanol). El sub-producto obtenido, denominado melaza de azúcar todavía incluye algunos azúcares y es por lo tanto enviado a un filtro rotatorio de vacío para extraer el azúcar restante. El filtro rotatorio de vacío es una antigua técnica utilizada en el proceso del azúcar. Tiene un alto consumo de energía, es muy voluminoso, emana gran cantidad de olores, y necesita asimismo de mucho especio. El Proyecto investiga la posibilidad de reemplazar el filtro de rotación al vacío por un decantador centrífugo y adquirir mayor eficiencia. El decantador es un centrifugador que separa sólidos de los líquidos. Está basado en la teoría de que los sólidos caen al fondo por la fuerza de gravedad. Se basa en la sencilla teoría de que los sólidos caen a la parte inferior debido a la fuerza de la gravedad. El decantador de centrífugo trabaja con este principio, pero la diferencia es que la fuerza de gravedad ha sido sustituida por una fuerza centrífuga. La aplicación en el sitio se describe de forma detallada, incluyendo todos los problemas y soluciones durante el proyecto. Con el aumento del uso de etanol como bio-combustible, la cuestión acerca del balance de energía de bio etanol ha tomado mayor importancia. En nuestra búsqueda, encontramos únicamente una investigación precisa concerniente al etanol de la caña de azúcar. Los resultados se presentaron y discutieron antes de dar la conclusión del proyecto.</p>

This thesis work has been carried out in collaboration with a specialist physician and Hälsoteknikcentrum Halland. The project is a part of an innovation project which involves developing a health scanner that will be able to carry out standard measurements on patients and thereby facilitate and streamline healthcare. The part in this report concerns the development of the booth itself for the complete product as well as the attachment of the technology. The thesis objective is about developing a concept that automatically adjusts the instruments depending on the patient being measured, as well as creating an optimal environment where the measurements can be performed correctly. By using brainstorming and a functional analysis, a number of concepts could be developed. These were then evaluated against the analysis and further developed to match the specification of requirements and other guidelines. The result was a booth, adapted for both sitting and standing positions, with an automatically closing folding wall and with an arm that keeps the patient at the right distance from the measuring devices. The project has also included an investigation of, as well as discussion about, the materials and manufacturing methods that may be used in a future production of the concept. The result was a virtual model, ready to be used for the production of a real-size prototype. In addition, the model was also used to visualize the concept in the form of images and animations made in KeyShot 6. / Detta examensarbete har genomförts i samarbete med en specialistläkare och Hälsoteknikcentrum Halland. Projektet som bedrivits är en del av ett innovationsprojekt, som handlar om att ta fram en hälsoscanner som ska kunna genomföra standardmätningar på patienter och genom detta underlätta och effektivisera vården. Den del som behandlas i denna rapport berör utvecklingen av själva båset till den kompletta produkten samt infästningen av tekniken. Arbetet har dels gått ut på att ta fram ett koncept för hur mätinstrumenten automatiskt ska kunna justeras efter olika patienter samt att skapa en optimal miljö där mätningarna ska kunna utföras korrekt. Genom att använda sig av idégenereringar och en funktionsanalys kunde ett flertal koncept tas fram. Koncepten utvärderades sedan mot analysen och vidareutvecklades för att matcha kravspecifikationen och andra riktlinjer. Resultatet blev ett bås, anpassat både för sittande och stående personer, med en automatiskt stängande vikvägg och en arm som håller patienten på rätt avstånd från mätinstrumenten. Projektet har även inneburit en undersökning av, samt diskussion kring, vilka material och tillverkningsmetoder som kan tänkas användas vid en framtida tillverkning av konceptet. Resultatet blev en 3D-modell, redo att användas för framtagning av en prototyp i verklig storlek. Dessutom användes modellen för att visualisera konceptet i form av bilder och animationer gjorda i KeyShot 6.

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Fixturer är en viktig del i tillverkningsindustrin. De möjliggör repeterbarhet och höga toleranser för massproduktion. Fixturer är kostsamma att ta fram särskilt i CAD-konstruktionen vilket är den del arbetet fokuserar på. I ett led att minska kostnaden i samband med konstruktionen har Göteborgbaserade Prodtex utvecklat en mjukvara för CATIA vilket förenklar många olika uppgifter och spar konstruktören mycket tid. Prodtex gav oss i uppgift att visa tidsbesparingen mellan att arbeta med och utan deras programvara. För att producera ett bra resultat skapade vi en anpassad metod för uppgiften. Metoden börjar med en studie i fixturkonstruktion och utbildning hos Prodtex. För att simulera erfarna konstruktörer och få stabilare mätdata konstruerades fixturen med båda metoder utan tidtagning till en början. Detta följdes sedan av repeterad konstruktion i CATIA både med och utan Prodtex mjukvara. Resultatet av tidtagningen under konstruktionen visade att för exakt samma arbete sparades med mjukvaran 86% av arbetstiden från början till slut. Det finns förbättringsmöjligheter för programvaran, men också fördelar vilka inte syns i tidtagningen. Påverkan från den mänskliga felfaktorn minskar betydligt när mjukvaran hanterar repetitiva arbetsuppgifter så som import, namngivning och kontroll vilka mjukvaran sköter automatiskt. / Fixtures are an essential part of the manufacturing industry. They enable repetability and high tolerances for mass production. Fixtures are expensive especially the CAD-design which is the part this project focuses on. In a way to reduce the cost of construction, Gothenburg-based Prodtex has developed a software for CATIA, which simplifies many tasks and saves the designer a lot of time. Prodtex gave us the task of finding the time saving between working with and without their software. In order to produce a good result, we created a customized method for the task. The method begins with a study in fixture construction and education at Prodtex. To simulate experienced designers and get more stable measurement data, the fixture was constructed with both methods without timing at first. This was then followed by repeated construction in CATIA both with and without Prodtex software. The result of the timing during the construction showed that for the exact same work, the software saved 86% of the working time from start to finish. There are improvement possibilities for the software, but also benefits that are not seen in the timing. Impact from the human error is significantly reduced when the software manages repetitive tasks such as import, naming and verify, all of which the software manages automatically.

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