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9524 Uppsatser om VBX; Ventilation-system; Heat recovery - Sida 39 av 635
Uttorkning av Betong
This Thesis aims to explore how to integrate an IT-system for facilitating anorganizations work with Continous Impprovements.This is done here by examining and analyzing the process within a handful ofcompanies who seem to have been successful with their own implementations. Thestudy is focused on the implementation of one particular system, "System C2".Simliarities and differences between the companies, and the established rule of thumbfor these kind of activities are focused upon. This to emphasis how another actormight emulate some of the apparent success.Part of the core question is found in the title, since Continous Improvement is oftenseen as a relativly low-risk activity, is it then also possible to take a low-risk slow pathto the implementation of such a system in the entire organization?.
Utredning av behovsstyrd ventilation : En jämförelse mellan CAV och VAV
Denna rapport är ett examensarbete på C-nivå som görs i sammarbete med teknikkonsulten Ramböll. Det vanligaste sättet att ventilera en byggnad idag är med så kallad CAV-ventilation (Constant Air Volume). Denna metod bygger på att ett luftflöde bestäms för rummet och upprätthålls med konstant flöde. En annan metod är så kallad VAV (Variable Air Volume) som bygger på att flödet varierar efter behovet. Anledningen till varför man väljer VAV istället för CAV är att med CAV finns det ofta en stor risk att man överventilerar ett rum eller byggnad, just på grund av att flödet är konstant. Problemet med VAV är att det är en högre investeringskostnad än för CAV så metoden lämpar sig bara där energibesparingen är så stor så den täcker mellanskillnaden i pris.
Optimerade material för optiska komponenter i koncentrerande solfångare
The energy consumption continues to increase as the use of electronics and energy consuming equipment increases. The use of fossil fuels has to be phased out for this to be sustainable in the long run while the use of renewable energy continues to increase. A renewable energy source is solar energy but the production of heat and electricity are today very expensive compared to other energy sources and an important task for the solar energy market to grow is therefore to minimize the production cost of the solar collectors while increasing its efficiency to produce heat and/or electricity. One way to convert solar energy into heat is by using solar collectors and electricity can be produced by utilizing the produced heat, or by applying solar cells.This thesis aims to recommend a reflective material for the next generation solar collectors from Absolicon and to recommend a commercially available coating for the receiver tube of the solar collector. A market study has been carried out to investigate the cost-related aspects along with the optical and durable aspects for the optical material of the solar collector.
En studie om artikelhantering i material- och produktionsstyrningssystem på System Andersson AB
This thesis aims to develop a control system for measuring electromagnetic compability (EMC). This has meant that a controller designed around an ATmega8 microcontroller has been manufactured and programmed. It has also meant the development of a comprehensive control software in the program MATLAB. The control system has been tested with satisfactory results and can now, monitor and control measurements of the EMC-type..
MOLNU : Att utveckla ett gemensamt gränssnitt
Climate and environmental issues is now high on the agenda. We live in a generation that must try to solve some major environmental problems. Buildings and habitations account for approximately 40 % of Sweden's total energy today. To reduce this figure, as needed, more research in the field of energy efficiency is required.This thesis concerns the heating of buildings. The load on district heating is heavy during certain times of the day.
Beskrivning av patienters postoperativa vårdförlopp tre dagar efter kolorektalkirurgi enligt ERAS vårdprogram
AbstractThe purpose of this study was to describe the post-operative care during the three first days for patients who have undergone colorectal surgery according to ERAS care programs with a focus on the variables nutrition, elimination, activity, type of analgesia and the number of hospital days documented in the patient record and patient log books. ERAS means "Early Recovery After Surgery" and the purpose of the health care program is to accelerate recovery after colorectal surgery. The study had a descriptive design and a quantitative approach, in which 51 patient records were included. Log books and patient records were reviewed postoperatively. According to the log books estimated most of the patients, who had documented, that they ate and drank very good or good.
Samverkan arkitektur och installationer : Osynligt ventilationssystem i utställningssal på Plan 4, Nationalmuseum
Detta examensarbete har utförts i samarbete Statens Fastighetsverk. I dagsläget pågår renoveringen av Nationalmuseum där byggnaden skall återställas till sitt ursprung och ett nytt ventilationssystem skall tillgodose ett stabilt inneklimat för bevarandet av museiföremålen. Examensarbetet undersöker hur de krav som ställs på ventilationssystemet kan kombineras med de begränsningar som byggnadens kulturminnesmärkning medför genom att besvara frågan ?Hur kombinerar man dagens behov av installationer med en kulturhistorisk byggnad utan att påverka det kulturhistoriska värdet?? För att exemplifiera denna problematik presenterar vi ett principiellt lösningsförslag för installationssamordningen till en utvald del av byggnaden.Ventilationsförsörjningen till utställningssalarna på Plan 4 utgör ett av de svåraste samordningsområdena i byggnaden. Det valda utrymmet för lösningsförslaget är bjälklaget på Plan 6 som skall försörja en av dessa salar.
Kvalitet-i-Bruk för Beslutstödssystem inom Thoraxkirurgi
The aims of the practical work carried out for this thesis were to redesign a clinical decision support system for thoracic surgeons, called AssistMe, and to evaluate the concept behind this system. The main objective of the thesis is to give an account of the considerations that were found to be of key importance for designing a clinical decision support system for thoracic surgery. Another aim was to let future users test the system after it had been redesigned and evaluate the concept behind it. The thesis also investigates users? experience of the system and their views on whether it would be applicable in their daily work practice.
Metod för beslutsstöd vid formulering och uppföljning av en kommuns klimatmål : Fallstudie Uppsalakommun
The purpose of this study is to create a method that can be used to produce decision supportdata for the climate goals of a municipality. The method should be able to demonstrate the potential for reducing energy use and greenhouse gas emissions for measures aimed at the stationary energy system in the municipality. It will be used to make long term projections of energy use and greenhouse gas emissions in order to be able to demonstrate the ability to reach climate goals. The aim was also to test the method's applicability by using the municipality of Uppsala and the Uppsala climate protocol project in a case study. Uppsala climate protocol is a project consisting of participants from business, government and organizations that voluntarily want to commit to reducing their carbon footprint by reducing their energy use and thus work to achieve the municipality's overall climate goal.
Klassifikationssystem på webben: Traditionella och nya
The aim of this thesis is to investigate the opportunities of classification of web pages. Two classification systems are compared; a library classification system traditional and a system that is developed for use on the web new. UDC is chosen to represent the traditional systems, and Yahoo! represents a so called new system. UDC is used by NISS Directory of networked resources, which is a directory that uses the system for organisation of electronic resources. Both systems are analysed from two different perspectives, a multidisciplinary and a timeperspective.
Från ord till (e-)handling : - Integration av e-handelssystemi SiteVision
The client, Senselogic, had noticed an increased demand for an e-commerce system integrated into its product, SiteVision, something that did not previously exist. Senselogic wanted to integrate a third-party system to manage e-commerce. The problem was that there were very many e-commerce solutions to choose from. In order to select the best system it was necessary to evaluate the e-commerce systems and compare them to each other. To identify the elements that has to be included in an e-commerce system a study of literature was conducted.
Energiåtervinning från gjuteriprocess till fastighet, undersökning för ökat utnyttjande av spillvärme
This diploma work on D-level is made in cooperation with Varnäsföretagen AB in Eskilstuna. The company performs contract manufactured aluminium goods. This work is a continuation on earlier diploma work in Varnäsföretagen AB. Even if the industry process consumes much energy for melting the aluminium goods, they consume a great amount of oil to warm up the building. The purpose of this work is to examine some places in the building and the process to see how much energy it is possible to recycles to the heating system and reduce the costs for heating.
Utveckling av internordersystem för SharePoint
SharePoint is a web based platform designed to provide internal communications and file sharing for businesses and organizations.In this project, we created a system consisting of multiple applications to be used together with SharePoint. These applications are meant to simplify the workflow for internal orders of products. The system is targeted towards companies that do not have a flexible approach to digital orders or companies that want to integrate this functionality into their SharePoint platform. The project includes, in addition to the creation of the system, installation of the software and the servers needed to run a SharePoint environment and their configurations.The system consists of four applications where one of these, the store application, is required for the system to be used at all. The other applications are an order management application, a purchase application and an incoming delivery application. Of these four, we have implemented the store application and the order management application. Our hope is that users will find the system easy to use and graphically appealing..
Vad krävs av en ERP-leverantör för att i framtiden tillfredställa mindre företag?
Ett ERP-system syftar till att ta hand om företagets resurser och skapa ett enhetligt integrerat system för dessa. ERP-system kan också användas för informationsutbyte mellan företaget, kunden och leverantörens system. Behov av ERP-system finns inom de flesta branscher oavsett storlek och inriktning men kritik har riktats mot att systemen inte lever upp till användarnas förväntningar eller tillfredställer användarens behov. Arbetets fokus ligger koncentrerat på hur mindre företags uppfattning om ERP-system är och vad som krävs av en ERP-leverantör för att i framtiden tillfredställa mindre företag. En surveyundersökning har använts för att få fram relevant information för att lösa min problemprecisering.
Utformning & placering av vädringskanaler i ett passivhus, drivet av naturliga krafter
A passive house in Norra Djurgårdsstaden drawn by Tengbom Arkitekter is going to be built. A shaft for airing is needed for a few apartments in the house.The airing shaft is designed for a few two room apartments in the house, which are not able to achieve satisfactory airing, as their outer walls are facing a single direction. The other apartments on the same floor are corner apartments. These apartments do not have the same difficulty with airing since they have their outer walls in different directions, with different pressures at the facades. The airflow in the airing shaft is supposed to be driven only by natural forces, by the sun. The purpose of natural driven forces is to achieve low energy consumption for the house.In this thesis, a design of the shaft for airing has been developed.Initially an open shaft for all apartments was analyzed.