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1200 Uppsatser om Pipe flow module - Sida 3 av 80
Skadliga nollflödespunkter i Fortum Värmes fjärrvärmenät i Stockholm : En analys av dess förekomst och effekter
When several production units provide a district heating network, water is pumped from different directions. When the flows from the plants finally meet in the network, the water can be completely still. These places are called zero flow zones. In district heating networks with several plants, which also have different supply temperatures, large and frequent temperature fluctuations can occur when the zero flow zones move. This may cause wear on the pipes, a phenomenon called low cycle fatigue.For this reason it is important to examine where and when zero flow zones that cause temperature changes occur.
Enkelt utbytbara instegs delar : En ny lösning för en instegsmodul till lastbil med högmognadsgrad. Forskning har fokuserats på ergonomi och materialval.
The task was to deliver a solution that could be implemented in today?s production of the FH truck. To make the project successful it was most important that the end result had a high maturity level. For that reason an analysis of ergonomic, laws and regulations, and possible materials where conducted. To show that this project is profitable and can be realized a ruff cost estimated of material and tools is added to the research.
V-modulen, en del av en hållbarhetsstrategi.
The state of our society is frequently changing. Due to various factors, the pressure of creating a changeable city is high and necessary to adequately supply the needs for its inhabitants. But making these changes and adapt to the fast shifting state of the city is not always physical possible. Young adults and students is a group that often seeks to move to intensely growing city regions. The reason for this is a more promising job market and more attractive educations, but coincidentally the shortage of housing is extremely high in these areas.
Konstruktion och byggnation av testfixtur för 10Gbit/s transpondermoduler
This thesis for the Master of Science degree was performed at Solectron Corporation in Norrköping. The background for the thesis was a need to develop and build two test fixtures to automatize testing and adjusting of transmitter modules (TX-fixture) and receiver modules (RX-fixture) which are head devices in DWDM-systems. The basic elements for the test fixtures are: Test board, switch board and DC/DC board. The main function of the test board is to handle communication between the transmitter and receiver modules and supply voltage to these modules. The test board was insufficient and modified with a microprocessor to handle the communication between the PC and the receiver module.
Underso?kning av tryckfall relaterat till avstånd mellan två 90 graders kro?kar i cirkula?r ventilationskanal
Due to higher standards of living around the world, greater industries and larger infrastructures causes an increase of the global energy consumption. This harvest of energy puts a great stress on the global environment. With this development, it becomes increasingly important to utilize energy resources in the best possible way.Fans are components that are often used in the industry and in households. A common problem is that the fan is oversized. An oversized fan causes an excessive flow, which has to be adjusted in order to achieve the correct flow.
Översvämningsrisker längs Funboån
Flooding events are no longer rare, floods occur all over the world. Accordingly, it is vital for the society and different authorities to work with flood mapping. To meet the goal of Uppsala kommun to map the risks of floods in Uppsala län, a map of the different areas around Funboån which are inside the area of risk for flooding have been developed.In the work, cross sections and the water flow have been measured. Moreover, an echo-sounding have been carried out in Funboån to map the bottom topography. From the bottom map and laser scanned data covering the study area, a terrain model was created.
Liten displaymodul
The purpose of this Master Thesis is to analyze what suitable hardware platforms there are on the market in order to build a low price control and information system for mobile applications, called small display module. The thesis will be underlying material for making a decision for further development. The result of the thesis consists mainly of a Windows CE kernel and a schematic for a CPU card, on which it would be suitable to build the display module. Another major part of the report is the introduction of different techniques that could be of interest when designing a processor based system. The processor architecture that was chosen is the x86.
Design av Digital Multimeter-modul för inbyggt testsystem
The thesis work of 15 credits has been performed to interest of Norrtälje ElektronikPartner AB (NEP) in Norrtälje. The aim of the thesis was to develop a prototype for an integrated digital multimeter, designed for one of NEP's proprietary test systems. A digital multimeter module according to NEP's requirement specification, such as physical size and accuracy should be constructed. The module should be able to measure current, voltage and resistance.The final circuit was based on the chosen analog to digital-converter, Maxim integrated´s Max134, which is the main component of the circuit for this instrument. A circuit diagram and PCB layout were made. The result of this project is a constructed DMM board.
Investeringsförslag till slipstation för servicearbete av skruvmatare
The project ?Investment proposal for grinding station for service work of screw feeders? has been performed during the spring semester 2014 for the course Bachelor?s thesis for degree of Bachelor of science in machine engineering at Karlstad?s University. The project has been performed in cooperation with Fiber Workshop which is a service department in the company Valmet AB. Valmet AB is a company that develops and manufacture soft paper tissue machines. The screw feeder is a part that is used to feed, and squeeze out the water out of woodchips.
Uppvärmd konstgräsplan : Beräkning av utnyttjningstid för en uppvärmd konstgräplan med alternativa rörplaceringar
For Skattkärr IF a turf field with warming has been projected to increase field?s utilization hours and to have a longer period for athletes to perform their activities outdoors. The technique chosen to heat the plan is a type of a geothermal heating system without a heat pump. The brine, which is water with 30% ethanol, collects heat from the borehole and discharges it to a coil in the field. There is at position 11 boreholes but it is planned to increase the number to 31, which is the design for the facility.
Utvärdering av datoranvändning i primärvården med särskilt fokus på remisshantering
The aim of the thesis is to present a study of what works well and what does not work so well in today?s use of computers in primary care with a special focus on the use of computers in the management of referrals for consultation. In May 2009 a module for electronic consultation referrals was introduced in the computer system Cosmic at the University Hospital in Uppsala. Previously, the primary care units had to use two different systems for management of referrals. Referrals sent internally within primary care have been sent electronically while referrals to the University Hospital or other external units were sent on paper.
Värmeöverföring i bergvärmesystem : En numerisk analys av den ringformade koaxiala borrhålsvärmeväxlaren
The borehole heat exchangers of today suffer from poor thermal and hydrodynamic performance. The purpose of this thesis is to improve the performance of ground source heat pump systems and thermal energy storages by increasing the energy efficiency of the borehole heat exchangers. For this reason, the annular coaxial borehole heat exchanger (CBHE) has been analyzed. This type of heat exchanger is interesting in terms of both thermal and hydrodynamic performance. A model has been set up in the program Comsol Multiphysics in order to investigate the heat transfer characteristics along the borehole.
Kombinerat system för ventilation och rumsuppvärmning : Parameterundersökning i simuleringsmodell för takvärmesystem
A large amount of our time is spent indoors in an artificial climate. To make the experience pleasant there are requirements on the ventilation and the heating system. At the present time the most common form of heating is a radiator system complemented with a ventilation system. A ceiling heating system with combined heating and ventilation can replace the two separated systems. The benefit with a ceiling heating solution is that it saves space since the radiator system is no longer needed.
Varför sprang dina partikamrater med järnrör på stan? : En undersökning av medias gestaltning av Sverigedemokraternas politiska skandal: ?Järnrörsskandalen?
The purpose of this paper is to make a qualitative content analysis. The used articles are taken from the time period 2012-11-13 until 2012-11-30 and the questions that this paper is based upon are:How do the tabloid Expressen and the morning newspaper Dagens Nyheter define and diagnose the causes and problems of the iron pipe scandal during the period 2012-11-13 until 2012-11-20?What kind of valuations and solutions does the tabloid Expressen and the morning newspaper Dagens Nyheter provide of the iron pipe scandal during the period 2012-11-13 until 2012-11-30?Does the framing of the iron pipe scandal during the period 2012-11-13 until 2012-11-30 differ between the tabloid Expressen and the morning newspaper Dagens Nyheter?The result of this paper shows that through the tabloid Expressen and the morning newspaper Dagens Nyheter way of framing the Swedish democrats during the period 2012-11-13 until 2012-11-30, the society cannot get another picture of the Swedish Democrats than that they are a right wing populist party..
Mätning av implementeringen av lean inom sjukvård
The purpose of this thesis is to discuss how an instrument originally developed for measuring changes toward lean thinking inservice organizations in general should be adjusted in order to be of use in service organizations within the healthcare sector, andin hospital organizations in specific. The adjustments are suggested based on difficulties specifically arising when implementinglean within the healthcare sector.Thesis starting point is a pre-existing lean assessment instrument developed for service organizations in general. The thesis appliesa qualitative method and integrates literature from the health care sector and lean production movement with the expertise of tenacademics and practitioners in order to find difficulties associated with the implementation of lean within the healthcare sector.These difficulties then lie as the substratum for the adjustments suggested to be made on the instrument.The thesis finds that lean, as a philosophy, does not differ between service organizations in general and service organizationswithin healthcare settings. However, due to deficits in the general understanding of lean some adaptions on the instrument mustbe made. First, some words associated with production must be changed to words associated with healthcare.