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1425 Uppsatser om Flow calculation - Sida 55 av 95
Rumsligt koncept som sto?d fo?r rundvandringar : En studie av flo?den och processer pa? Alfa Laval i Eskilstuna
AbstractThis study deals with the tours carried out in the manufacturing sector, at Alfa Laval in Eskilstuna. A large number of visitors, from a variety of backgrounds, go there to see how the manufacturing of separators works. With visitors I refer to the company?s customers, suppliers, students, in- house trainee courses, managers and senior citizens groups.The study examines how these tours can be standardized using spatial design. The result shows the importance of working systematically with visualizing the work as well as the environment for optimizing the visitor's understanding.
Forskning och museer : en kartläggning av fältet
Today every organization is committed to some kind of environmental scanning in order to get necessary knowledge of the world around them. The acquisition, organization and storage of information in combination with a strategic use, is today an important factor for a successful organisation in any sector of our society.In this Master thesis I have studied how an organisation such as The Confederation of Swedish Enterprise (Svenskt Näringsliv) handles its information resources. I have also looked at the flow of information within the organization. The Confederation of Swedish Enterprise is Sweden?s largest business federation representing 50 member organizations and 55 000 member companies.
Juniorfinansiering i fastighetsbranschen? Fokus kring Mezzanine
Real estate financing is one of the key figures for financial success and fundamental to asuccessful business. Funding will come in several different ways, from existing cashflows andassets to new capital requirements which are aimed at different markets.These markets are constantly changing and since the recent financial crisis, there have beenadjustments and austerity measures which led to that the banks have become more restrictive intheir lending.The real estate industry is characterized by both long-term and short-term thinking that ischaracterized by a solid continuity. Our thesis discuss how the demand is in the real estatebusiness and how mature the Swedish market is for junior financingwith focus aroundmezzanine debt and where are we headed in the near future.We've reached out to the key players in the industry on both the buy and sell side of real estatefinancing but also people between lenders and borrowers that handles transaction advice. Tohave been able to implement the analysisa survey and simulation of an investment calculationwas created. This questionnaire was answered by many real estate companies with senior peoplethat had operational positionsmost associated with corporate commitments.
Kappa Control with Online Analyzer Using Samples from the Digester's Mid-phase
In the pulp industry, digesters are used to disolve lignin in wood chips. The concentration of lignin is measured and is called the Kappa number. In this thesis, the question of whether an online Kappa sensor, taking samples from the mid-phase of the digester, is useful or not is analyzed. For the samples to be useful, there has to be a relationship between the measured Kappa at the mid- phase and the measured Kappa in the blowpipe at the bottom of the digester. An ARX model of the lower part of the digester has been estimated.
Energikartläggning av polishuset i Gävle : Åtgärdsförslag för ett minskat energibehov i fastigheten Gävle Söder 17:10
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.
Transientanalys för Forsmark block 2 och 3 : Studie av hur val av driftpunkt och pumpreglering påverkar torrkokningsgränsvärdet
The dry out criterion (MCPR) has been calculated for the most limiting H2-events for Forsmarks unit 2 and 3, at operating points that are normally not analyzed before each cycle. The operating points that normally are regarded as the ones with the lowest margin to dry out are the ones where the thermal power is the highest at agiven recirculation flow. This report shows that this is not the case for Forsmark 3. MCPR-values at partial power operating points are higher for the limiting case inside rather than on the boundary of the region of operation. It is therefore recommended that the method for determining the dry out criterion for Forsmark 3 is revised to account for this effect.
Osäkerhet i energisimuleringar av flerbostadshus : Analys av fem nybyggnationer
Since energy simulations are used to verify that projected residential buildings will reach the current energy requirements it is important that the results are reliable.This report investigates the extent of uncertainty in energy simulations, estimates the causes of the uncertainty and its economic and environmental consequences.The method used in this report is based on three validation methods; empirical validation, analytical validation and comparative validation. The analysis was carried out for five multi-family dwellings in Uppsala with installed meters for energy measurements. One of these objects, Klockarlunden, was studied in more detail than the others.The results show that the deviations are between 10 and 29% for the studied objects, which means that the uncertainty is estimated to be at least 29%. All simulations underestimate the buildings need of energy. The simulation for Klockarlunden can predict the energy consumption to be within the range of 46-98 kWh/m2year with 90% confidence level based on the current uncertainty.
Vilka faktorer bidrar till att spelare fastnar i MMORPG spel?
Massiva onlinerollspel är idag mycket populära och försäljningen och spelandet utav dessa ökar markant. I och med detta väcks frågan om vad det är i dessa onlinespel som gör att människor spelar och fortsätter spela. Denna uppsats inriktas främst mot MMORPG:s, Massively Multiplayer Online Role-Playing Games, då författarna anser att det är i denna onlinespelsgenre den största möjligheten att finna och definiera de faktorer, som påverkarspelares vilja att spela, finns. För att ta reda på dessa faktorer skapades en enkät vars frågor utformades med en gameflowmodell i baktanken. Denna enkät lades sedan ut på sex olika onlinespelsanknutna forum, där totalt 105 spelare anonymt deltog.
Analys av nyckeltal på produktionskostnader i tidiga skeden : För säkrare kalkyler i egenregiprojekt
Syftet med detta examensarbete är att analysera nyckeltalen för produktionskostnaden som nyttjas vid investeringsbeslut i flerbostadsprojekt. För att kartlägga osäkerheterna innan investering sker tas kostnadskalkyler fram. Dessa kalkyler innehåller ofta flertalet osäkra poster då projekten är till stor del fortfarande på idéstadium och uppskattningar blir ett måste. Rapporten inleds med att riskerna, utifrån risknivå och konsekvenserna utav dem, definieras och analyseras. Följande presenteras Veidekkes önskade hantering av kostnadsriskerna och slutligen vilka möjligheter och hinder det finns inom dagens organisation för att uppnå dessa arbetsmetoder. Studien har baserats på kvalitativa intervjuer med representanter från olika yrkesroller, i olika projektskeden och från de tre olika svenska regionerna. Dessa intervjuer har visat på att de största osäkerheterna ligger i entreprenadkostnaderna, markkostnaderna och konjunkturens påverkan på bostadsmarknaden.
?Det sade bara klick?: en studie om 15-åriga tjejers Internetanvändning utifrån ett källkritiskt perspektiv
This Masters thesis aims at investigating how 15-year old girls use the Internet, particularly on their free time, taking a source critical perspective. It includes group interviews. The main question of this thesis was whether there is a need for specific user education. The following four questions were asked: What do they do on the Internet during their free time? In what way do the girls learn how to interact with each other on the Internet? How do they relate to different types of web pages and materials from a source critical aspect? What content do they consider to be relevant in a user education? The study is mainly focused on information use and information behaviour in different contexts.
Re-design av BEV-heater
Denna rapport beskriver det examensarbete som utförts på Calix AB under vårterminen 2013. Calix AB tillverkar värmare för bland annat batteri och kupé till fordonsindustrin. Uppdraget i detta examensarbete var att göra en omkonstruktion på BEV-heatern (Battery Electrical Vehicle) som är en batteri- och kupévärmare till el och hybridfordon. Problemet med den nuvarande konstruktionen är att den bygger på delar från äldre värmare till fordon med förbränningsmotorer, samt att konstruktionen inte är lämplig för produktion i större serier. Krav som Calix AB hade var:Integrerat ChassiMinimera tryckfallUnderlätta montering och tillverkningUppfylla standarder satta av fordonsindustrinKunna monteras ?in-line? i fordonetFör att kunna genomföra projektet var vi till en början tvungna att få kunskap om hur den befintliga BEV-heatern fungerar.
Produkthantering vid tillverkning av roterande verktyg
AB Sandvik Cormorant?s production unit in Gimo has identified a need to examinethe handling of products between operations with the purpose of generatingproposals of improvement for the product handling.The aim of this project is to study the existing manufacturing process and givesuggestions for improvement. The proposals should reduce the manual handling ofproducts, decrease the risk of damaging the products during the manufacturing andform a basis for increased traceability. Based on a mapping of the manufacturingprocess and the problem description, a specification of requirements has beencomposed.The mapping of the manufacturing process suggests that a change of the currentsystem is required. The company is recommended to decide how the producthandling between operations should be performed as guidelines for the productionteam.
Externa kostnader för viltolyckor
The objective of this paper is to estimate monetary and non-monetary costs for the huntercaused by deer-vehicle collisions in Sweden. These costs include losses in hunting value as wellas time and money efforts related to the handling of wildlife casualties. The calculations arebased on available statistics from 2004 on deer-vehicle collisions involving moose, deer, roedeerand wild boar and on telephone interviews with hunters involved in the tracking of injuredanimals. Altogether, the annual loss in hunting value for moose was assessed to approximately30 million SEK based on the 2004 accident statistics. For roe-deer and fallow deer, thecorresponding figure was approximately 56 million SEK and 1.2 million SEK, while wild boaraccounted for 1.3 million SEK, respectively.
Panic - IT-stress och Design med hälsa i tanken
Från början hade vi ställt in oss på att vi ville hitta ett nytt sätt på hur man kan designa IT-relaterade produkter med ungdomars välmående och hälsa i tanke. Detta visade sig inte vara den lättaste uppgift två interaktionsdesigners, utan någon som helst bakgrund eller insyn om människors välmående, kunde tänka sig. Efter mycket efterforskning både i böcker och på Internet började vi förstå att vi inte var ensamma i vårt mål att motverka att stress uppstår i relation till dagens informations teknik. Flera andra forskare med bakgrund inom sjukdomar, rehabilitering och medicin hade varit aktiva inom fältet men bara ett fåtal interaktionsdesigners innan oss hade försökt sig på något liknande. Vi fick mycket inspiration från deras tidigare projekt och vi har försökt använda oss utav deras kunskaper och resultat.
Miljöpåverkan av äggproduktion : En jämförelse mellan Lilluns ägg och andra svenska äggproducenter
The purpose of this report was to compare Lilluns egg production with other Swedish egg producers based on the flow of nutrients (nitrogen, phosphorus and potassium) in the egg production systems. The main focus in the report was the utilization rate of the forage and the excess of nutrients per kg egg. Additionally, the purpose was to identify the environmental impact from Lilluns egg production and compare the results with other egg producers. The inflow of nutrients associated with forage and poultry was compared with the nutrients that were exported from the production. All of the egg producers in this study had an excess of nutrients.