73 uppsatser · sida 2 av 5
tillämpat på ett obemannat flygplan
… of Easy5. Finally, the components in the fuel library handle a two phase flow of fuel and air. Modeling a two phase flow is not trivial and discontinuous mass flow and pressure values are also implemented and discussed.
En analys av dess förekomst och effekter
… 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 …
The aim of this essay was to study the nitrogen flow in two willow plantations, at different locations in the south of Sweden, that were irrigated with sewage. The study was also performed to compare the differences in nitrogen flows between two years, 1998 and 1999. The study …
… and reactive power of the trains was also studied. In addition, the power flow from the converter stations was analyzed. TPSS simulation times were nearly one minute, while the mean simulation time in TracFeed was four minutes. The simulations showed that there are possibilities …
… plant.The SimPowerSystems model has been used to perform simulations of power flow in the grid. These simulated values have then been compared to the measured values to verify the functionality of the model. Further, the model has been used to perform simulations of a grid …
… line so personnel will have a common picture of the whole line. · To decide flowcharts and layout for the future line. · To analyze the size and form of the storage after the line. · Examine the data for loading device and other bi-stations in the line so the press will strike …
en bakgrundsstudie samt simulering av inventeringsmetoders inverkan på noggrannhet i leveransprognoser till sågverk
… to customer demands. As a component in this process, the requirements on the flow of raw material will change. The right assortment, of the right quality, must be delivered at the exact right time. Due to the time span between harvest and delivery of timber from the forest, the …
spårämnesförsök i en isälvsavlagring
… esker formation in Järlåsa. On the basis of the experiment, a numerical flow model was created for the test site. The purpose of this master’s thesis was to apply the flow model to an aquifer where the hydraulic conductivity shows great variability and should be described by a …
… the Gulf of Riga. CoastMab uses ordinary differential equations to regulate inflow, outflow and internal flows. To reflect seasonal variations in temperature and different types of flows the model has a temporal resolution of a month. The main purposes of this paper have been to …
Struktur och ordning i kök för personer med neuropsykiatriskt funktionshinder
… a diagram of a business process. A BPMN diagram consists of several so-called flow objects. These are interconnected in the graph through sequence flows. BPMN models are merely graphical representations of business process and there is a need to simulate these diagrams for …
… a diagram of a business process. A BPMN diagram consists of several so-called flow objects. These are interconnected in the graph through sequence flows. BPMN models are merely graphical representations of business process and there is a need to simulate these diagrams for …
En ändrad styrning av framtemperaturen
This thesis examines a possible control strategy to minimize flow fluctuations in Uppsala’s district heating system. High variations in flow rate may lead to complications caused by hydraulic constraints in the district heating system. These complications, such as inadequate …
… As nature landscapes are being converted into hard surface areas storm water flow is affected both in terms of velocity and size. A flow increase can easily result in a flooding if the dimensions of the pipeline system are inadequate. Considering predicted upcoming climate …
… Four concepts were generated. And to theoretically estimate the thermal flow in different concept configurations a division of the problem was made, specifically looking at the temperature drop between different parts of the construction as the heat moves from the electronics to …
… plant.The SimPowerSystems model has been used to perform simulations of power flow in the grid. These simulated values have then been compared to the measured values to verify the functionality of the model. Further, the model has been used to perform simulations of a grid …
