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2660 Uppsatser om Ethanol production - Sida 30 av 178

Systemanalys flingtork : Produktionseffektivisering

BillerudKorsnäs is a leading global provider of primary fiber-based packaging materials and on Gruvöns Bruk in Grums, they have chosen to invest millions in the boiler at the facility to increase the total capacity of the factory. This results in the Pulp Flash Dryer at Gruvön being burden more, which makes it important that it is of great reliability and can be run with a high capacity. The reliability of the Pulp Flash Dryer at Gruvön is not as good as one could hope, which leads to reduced availability and production, as well as to increased maintenance costs. There are a number of different reasons for this, but all the casual links are not known.The purpose of this project was to perform a system analysis of the Pulp Flash Dryer to identify bottlenecks and the most critical parts from a capacity- and availability perspective. Appropriate methodology for the system analysis was used and would be used in a structured way to perform the analysis with data from the process and the maintenance system.

Crossbreeding in dairy cattle

The aim of this literature review is to give an overview of the differences between pure- and crossbreeding systems. Crossbreeding is a mating system with individuals of different lines or breeds. It is one of several breeding strategies in dairy production used to increase the economic profit. The use of crossbreeding increases due to changes in the dairy market and an increase of inbreeding among purebred Holstein. The main benefit of crossbreeding is heterosis, which is the improvement in genetic level in a hybrid offspring above the average of the parent breeds.

Färsk ved till Hallstaviks pappersbruk :

Hallstaviks papermill is an industry plant within Holmen Paper. Hallstavik is a mechanical mill and produce newspaper and journal paper. During year 2000, Hallstavik used approximate 1.200 m3f spruce, either as logs or chips from sawmills. Due to that the production is running continuously the mill also needs raw material at the same rate. At some periods the supply of raw material cannot keep up pace.

Logistiska lösningar för en lönsam byggprocess

This is a study, the purpose of which is to investigate how the construction company Sefab Bygg AB is able to increase its profitability and render a more efficient production process through logistic solutions. The study is made during one of Sefab´s present projects. The project includes sanitary renovation of 650 apartments in the co-operative Opalen in Norrköping.To find out whether changes of logistic routines are profitable or not, it?s necessary to evaluate the total cost of the changes. A total cost analysis is a mapping of all the costs for a particular material, on one hand for the present situation and on the other after the change.

Statistisk behandlig av driftsdata : Ur Garpenberggruvans driftcentral

Boliden Mineral Ab's mine in Garpenberg, Dalarna is going through a massiveexpansion. The annual ore production is being increased from 1,4 million tons to 2,5million tons in less than two years period of time. Along this expansion thedepartment of mining techniques is administrating a project of optimizing the shortterm planning for the mining production. Garpenberg have since mid 90s storedinformation from all mining processes in a database.The information consists of time data from all the different activities required in themining process, for example charging, blasting, loading etc. The database also containstime data of delays that are affecting the production.

Lean production ? I en traditionellt styrd organisation

Lean production härstammar från företaget Toyota och Taiichi Ohno?s begrepp ToyotaProduction System. Metoden är idag ett dominerande styrmedel bland organisationer. Därmedhar konceptet implementerats i allt fler västerländska resultatstyrda organisationer, varsparametrar för kontroll skiljer sig mot de lean production utgår från. Dess innebörd sträckersig över stora delar av en organisation, vilket bidrar till begreppets komplexitet.

De, dem och dom : En studie kring gymnasieelevers användande av de/dem/dom i svenska skriftspråket

Study objects: Three different productions companies which the authors have chosen to be anonymous. Purpose: The purpose with this study is to examine why production companies choose to use 3D-animations in television commercials, and what different kind of aspects affects their decisions. Theoretical: The theoretical chapter reviews the history of 3D-animation andtelevision commercials and other fields that will be relevant laterin the analysis and discussion. Method: A case study has been made on three different companies, two of the companies are active in post-production and the other one is active in the consulting area. Data was collected through semistructured interviews with two of the companies.

Underhållsstrategi enligt Professional Maintenance metodiken som en del av World Class Manufacturing

As a result of global competition, companies within the automotive industry are required to improve their production systems to achieve sustainable and competitive production. To attain operational excellence, companies have adopted concepts like lean and World Class Manufacturing (WCM).In order to deliver, companies need to increase the availability and reliability of production equipment. This demands focus on both operational and strategic maintenance, and efficient equipment acquisition and management. The main objective of this thesis is to identify processes and success factors that are necessary for improved maintenance performance. By conducting a case study and by performing a literature review, the following has been studied: 1) how companies within the automotive industry work with maintenance and maintenance strategies, 2) implementation of maintenance strategies, and 3) new acquisition and spare parts management for maintenance. The results show that basic maintenance concepts and related terms are well defined in the literature.

Environmental impact assessment of energy recovery from food waste in Singapore : comparing biogas production to incineration

As a small and land scarce country, effective waste management is ofoutmost importance in Singapore. In this study the production of biogasthrough anaerobic digestion from the organic fraction of municipal solidwaste (OFMSW) was compared to incineration of the waste. At the momentalmost all of the OFMSW in Singapore is incinerated. Three differentscenarios were compared to the reference scenario (incineration): one with alarge scale biogas plant that can treat half of all OFMSW in Singapore, onewith a medium scale biogas plant about 15 times smaller than the large oneand one with a small scale biogas plant that can treat waste from e.g. ashopping center or a food center.By using life cycle assessment (LCA) the different scenarios were comparedin terms of global warming potential (GWP), acidification, eutrophication,energy use and land use.

Produktionsstyrning av cylinderbricka : För Atlas Copco, Tierp.

The component workshop at Atlas Copco inTierp intends to reduce the costs inorder to increase their competitiveness.This thesis examines how the productionmanagement around cylinder washersshould be managed in a way that meetsthe customer needs. The customer to thecylinder washer is Atlas Copcos assemblydepartment in Tierp.The purpose of this thesis is to providean alternative way of managing theproduction. A chapter of theory is addedto give the reader an insight ofdifferent types of production managementsystems as well as the underlyingknowledge needed to get a better readingexperience. An introduction of kanbancan in theory help Atlas Copco in thedirection they strive. It should beclear how the purpose of this thesisaffects the cost for the componentworkshop and also how it relates to thecurrent production.

Inverkan av SPC på induktion av protein AF och produktionsresultat hos slaktkyckling

This study was a degree in Master of Science in agriculture with specialization in animal science for the Department of animal nutrition and management at SLU. The subject was created by AS-Faktor, a small company for science and development within the company Lantmännen AB. It was a test of the effect of SPC (Special Processed Cereals) on induction of the endogenous protein AF (an antisecretory factor) in plasma and intestinal lumen in broilers. Previous results have shown positive effects on different intestinal diseases in pigs, horses, dogs as well as in humans. Beside the induction we also studied the effects on results in a conventional slaughter chicken production, including the ability of SPC to compete with or be affected by the coccidiostat, Salinomax.When diarrhoea occurs, it's because there is an imbalance between the secretion and the absorption and it can be caused by for example toxins.

En montörs vardag : Bravida ventilation Uppsala

Bravida is one of Scandinavia's leading suppliers of technical installations and services. According to Bravida an installer loses around 35 per cent of their daily work. It?s the time aspect that?s going to be examined in this thesis. The purpose of this thesis is that the student in question is to investigate the activities of the installers that works with this project, identifying where and how time losses occur and come up with suggestions for improvement.Methods used in this work is literature studies, observational studies and interviews.

Ledarskap, kommunikation och målsättning som motivationsfaktorer : en fallstudie på Fresenius Kabi i Uppsala

It's not a secret that most companies strive to get such a high economic return as possible. To successfully engage in a profitable enterprise, there are many elements that come into play. An important element is the motivation of the employees and their work performance. Work motivation is a key factor for the employees to improve their performance and therefore determinant for the successes of the company.This work is a case study in the production at Fresenius Kabi, Uppsala. The work is based on an employee survey that they fill out once a year and the aim is to develop a deeper understanding for these questions and how the employees see on leadership, communication and goal-setting as motivators and how these factors works in the company today.To get this deeper understanding I have used a qualitative approach.

Spädningsvätskans påverkan på vaginas mikrobiologiska normalflora hos sto i samband med insemination

Sheep breeding contributes not only with wool, hides, meat and milk but also with openlandscapes. The sheep?s wool is a good raw material thanks to a lot of different qualities as itis water rejecting and easy to form. The wool production today is concentrated to specificplaces in the world which leads to environmental problems and a distorted market. InJämtland, a province in Sweden, there is right now a staking going on for local production andrefining of wool in a project called Ullforum.

Litteratur och intervjustudie inom Green Production : Vad skiljer Lean Production från Green Production, hur uppfattas arbete med miljöförbättrande åtgärder och vilka problem kan uppstå vid implementering av ett grönt produktionssätt?

Följande rapport är resultatet av det examensarbete som utförts våren 2011 inom innovativ produktion/logistik vid Mälardalens Högskola. Examensarbete behandlar ämnet Green Production med fokus på skillnader mellan ett produktionssystem som bygger på Lean Production och ett som bygger på Green Production. Områden som berörs i rapporten är de verktyg som används i de olika produktionssystemen, hur arbetet med miljöförbättrande åtgärder kan se ut i praktiken samt vilka svårigheter som finns vid arbete med miljöförbättrande åtgärder i ett företag. Examensarbetet består av en litteraturstudie där aktuell litteratur studerats inom området samt en intervjustudie som genomförts med insatta inom miljöfrågor kopplat till produktion samt operatörer.Bakgrunden till examensarbetet grundar sig i att världen står inför en framtid där många utav de råmaterial som används idag vid produktion inte kommer att kunna nyttjas i framtiden. Detta i kombination med de miljöproblem som människan åsamkat, har bidragit till att många företag insett att miljöaspekter måste vara i åtanke genom hela produktionsprocessen.Den uppfattning som erhållits genom intervjustudierna är att det är viktigt för ett företag att visa att de arbetar med miljöförbättrande åtgärder.

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