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1540 Uppsatser om Heat flow - Sida 27 av 103
Energieffektivisering av ventilationssystemet i konsthallen Sandgrund Lars Lerin
Uppsala County has ambitious environmental aims for the planned residential area inÖstra Sala backe. In this thesis different energy sources have been evaluated todetermine which system that would be most favorable given currently availableinformation about the project. Planned energy usage has been divided into tap waterheating, space heating and power. Three base case scenarios were made with districtheating, small scale bio fuel and heat pump. Solar power and solar heating were thensimulated and the production from the two could individually be deducted from theenergy need in the base cases, constituting 9 different scenarios.
Externa kanaler på Prime Care : Tanken med dem, dess funktion och sättet de uppfattas på
AbstractTitle: External communication channels of Prime Care How they where thought to be, how they work and how costumers apprehend them.Number of pages: 50 (64 Including enclosures)Author: Sophie DicksenTutor: Peder Hård af SegerstadCourse: Media- and Communication Studies DPeriod: Spring 2007University: Division of Media and Communication, Department of Information Science, Uppsala UniversityPurpose/Aim: The focus of this paper lies on the external communication channels of Prime Care and the aim is to study the following aspects: How do the channels work? How are they apprehended by customers of the company? What are Prime Cares own thoughts behind the channels? How does Prime Cares self-image correspond to the way that customers apprehend the company?Material/Method: Twenty interviews has been done with different customers of Prime Care in order to see how the company and its communication flow is apprehended. A consultant manager of Prime Care has also been asked about purposes behind the companies external communication channels in order to enable a comparison between Prime Cares image and profile. Prime Cares website, one of their mail sendouts, their salescalls, salesvisits and their exhibition participation have been studied on the basis of relevant litterature. Maletzkes model of mass communication was used as a general view of communication flow.Main results: All communication channels included in this study have different ways of function even though they all have the same main purpose, videlicet to promote the company, to inform about its activities and to recruit new customers and consultants.
Anmälningsplikten-Om att göra det vi måste kring barn som far illa : En kvalitativ intervjustudie med pedagoger i förskolan
Detta arbete a?r en sja?lvstudie i att utveckla improvisation pa? saxofon. Syftet a?r att utforska hur det a?r mo?jligt att uppna? en niva? av frihet i det improviserade spelet. En grundtanke som presenteras i inledningen a?r att all musik egentligen kommer ur improvisation.
Skyfall över Västerås : en konsekvensstudie
Skyfall kan leda till stora konsekvenser för samhället, framförallt i en stad då den urbana miljön är känslig för extrema händelser. Västerås stad har tidigare drabbats av skyfall där följderna har varit kostsamma. Den senaste forskningen pekar på att intensiva regnhändelser kommer bli allt mer vanligt förekommande, därför är det intressant att undersöka vilka konsekvenser dessa regn kan leda till.En analys har gjorts med utgångspunkt från SMHI:s lågpunktskartering över Västerås. Utifrån denna kartering undersöktes vilka förorenade områden, bostadsområden, exploateringsområden, infrastruktur, vårdcentraler, skolor, nätstationer och prioriterade pumpar som ligger i lågpunktsområden. Denna jämförelse har gjorts i ArcGIS.
Näringsbelastning på en anlagd våtmark från åker, skog och enskilda avlopp :
This work is a part of the project ?Våtmarker i odlingslandskapet ? uppföljning av miljömålen? (Wetlands in arable land ? following-up of the environmental goals). The main objective with this project is to study nitrogen and phosphorus retention in a constructed wetland by using mass balance calculations. Continuous measurements of nutrients and water flow through the inlet and the outlet of the wetland are made. However, substantial amounts of nitrogen and phosphorus were assumed to reach the wetland with a drain-pipe transporting wastewater from nearby houses (10 persons).
Renovering av flerbostadshus - en studie om energieffektivisering och lönsamhet
In today?s society a large focus is put on energy systems and how our energy systems are built up. In order to make sure that we in the future still can enjoy the living standards that we are used to today, Sweden and EU have made a number of decisions on making our energy system more energy efficient and consequently reduce the usage of energy resources. By 2020 the European Union should have reduced its energy consumption by 20 % compared to 1990?s level, and by 2050, 50%.
"Jag kände mig som en pilot" : ??????En studie om interaktionsstilarnas påverkan på spelupplevelsen
Today's technology offers a variety of opportunities to interact with the interactive systems. Human-Computer Interaction in the last decade is the area of research that has contributed the most to this development. But how is this interaction perceived? The user experience is something that is formed by the interaction between human and the computer interactive systems. The objective of this thesis is to investigate how the user experience differs depending on how one interacts with a game.
Sedimentprovtagning av dagvattendammar som ett alternativ till flödesproportionell vattenprovtagning
Stormwater run-off from surfaces such as roads or rooftops is often polluted with heavy metals and nutrients. Many of these substances can cause great damage in biota if they end up in the recipient. In Sweden constructed wetlands and ponds for treatment of stormwater are frequently used, since research has shown that these treatment ponds are reducing stormwater pollution considerably to a low cost. The knowledge of these pollutant removal mechanisms and how follow-up and assessment of the ponds should be performed is still limited.To determine the pollutant removal efficiency of the stormwater ponds it is recommended that flow-weighted water samples are collected from both the inflow and the outflow of the pond. This method demands considerable resources of time and money for installations and analysis.
Konvertering från direktverkande el i kommersiella lokaler : Ekonomisk och hållbar utveckling
Buildings worldwide account for 40 % of the total energy use. Climate change is of increasing importance, but few are willing to reduce their standard of living or get a higher cost for the change. Energy efficiency of existing buildings gives the greatest benefit economically and environmentally. The real estate company Klövern AB manages 46 properties in Karlstad. Heating is the major cost of the total operating costs of real estate. Rising energy prices increase the need for Klövern AB to improve energy efficiency and to investigate alternative sources of heat.
Minskning av produkter i arbete på Volvo powertrain
For Swedish companies to compete with low wage countries, developments in theproduction industry moved towards streamlining the entire company. One of themost effective ways for a company to streamline their operations is to review theirproduction. All companies have processes in their production that add no value tothe product. In order to compete, they must be eliminated.The purpose of this report is to reduce work in process (WIP) in the flow ofbashus at Volvo Powertrain in Köping. The aim is also to try to find reasons whyVolvo Powertrain feel that they have problems with the storage principle First in-First Out (FIFO).To meet the objective, empirical studies were conducted at the company whilethe literature in the area was studied.
Utveckling av en metod och en utrustning för mätning av bränslesprayers rörelsemängd
A new type of device for measuring thev m& ?rate of fuel sprays from a diesel fuel injector has been developed and the various steps in the development are described. The device works by deflecting all of the sprays from the injector at the same time by using a bell shaped deflector. A load cell consisting of a machined steel part with strain gauges mounted on it measures the resulting force. The shape of the curvature in the deflector bell shape has been evaluated by photographing the flow in a 2D?version of the curve shape.
Teknik för biogasanvändning
This thesis is made by Carl Persson and Alejandro Saavedra for Gryaab. Gryaab is Gothenburg?s water processing plant and produces about 60 GWh biogas annually with a flow around 1150 Nm3/h. Gryaab wants to research their possibilities to become independent with electrical energy and the possibilities to enrich, upgrade biogas. The use of methane rich gases like biogas and natural gas is today low in Sweden compared to major parts of the world.
Flexibel isolering av fönster för att minska energiförluster
The first part of this essay is about a single-family house that we have planned and projected. Thesecond part is a deeper study in ways to further insulate windows when they are not in use.In the first part the building?s design and its most important construction elements are described.The planning of all major installations (heating, domestic water, ventilation, sanitation, electricity)are reported so that one can in principle start construction of the house. In addition there arecalculations done on the building?s energy management.The result is a two stored house angled toward the south.
Sammankoppling av fjärrvärmenäten i Nyköping och Oxelösund : miljö- och systemkonsekvenser
District heating covers most of the residential areas and industries in the twoneighbouring Swedish municipalities Nyköping and Oxelösund. In Nyköping,Vattenfall AB Värme produces heat in a bio-fuelled CHP plant. In Oxelösund,waste heat and use of waste gases from the steel production at SSABOxelösund is the basis in the district heating system.This report examines the environmental consequences of a connection betweenthe two district heating systems. A broad system approach is used and the focusis on environmental effects in the system.A system analysis has been performed on the result of simulations of differentheat and electricity production alternatives. The alternatives simulated wereone where Vattenfall Nyköping covers the base load in the joint district heatingsystem and two where the power plant at SSAB Oxelösund supplies the heatbase load.The conclusion in this report is that the consequences of connecting the twodistrict heating systems can be both positive and negative, depending onsystem boundaries and on the environmental focus.
Hylshantering samt flödesanalys
Trioplanex International AB is a part of the group Trioplast Industrier AB, which produces packaging materials for the film and hygiene industry. The group is active throughout Europe, where most of the production is located in Sweden, with head office in Smålandsstenar. Operations in Landskrona consist of Trioplanex International AB and Trioplast Landskrona.Semi-finished articles consisting of paper cores, so called bobbins, give rise to a high amount of core waste in any form of core cutting. The objective of the report is to map out all core waste and illustrate the material flow with regard to present layout and equipment.In the beginning of the project an analysis of the current process was carried out with focus on the cutting equipment. A case study in the form of an improvement work took place in order to reduce the causes which had the biggest impact on existing machinery.Improvement proposals were discussed by the author together with supervisor, assigner and other parties involved.