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Jämförelse mellan tre utvecklade versioner av ett vattenvärmedrivet torkskåp
Abstract Electricity consumption is a globally increasing problem caused by the high share of electricity produced in coal power plants. These contribute to high carbon emissions when only about 1/3 of the heat generate electricity and the remaining 2/3 of the heat cools off …
… wants to explore the possibility of replacing the hydraulic cylinder with an electric actuator, generally as well as a case of a small power station on the river Nissan. Whether it is the chaplain or francis turbine vanes are actuated by hydraulic cylinders. Because of …
För att en kvalitativ och driftsäker kraftomvandling från vind till elkraft skall erhållas ställs krav på en mängd olika faktorer. Klimatologiska och tekniska faktorer kräver korrekt dimensionering och anpassning av omvandlingstekniken för att största möjliga energimängd skall …
Energibranschens förutsättningar och förväntningar
The need for a more efficient electrical grid has made the smart grid concept popular in recent years. The aims of this study are to identify the conditions in Sweden for implementing a smart grid and to analyse the opinions of stakeholders. One finding is that the large …
… carried out at Uppsala University in collaboration with the Division of Electricity and AppliedMechanical Engineering. The product was conceived and developed taking into consideration anumber of requirements put forward by the supervisor, Magnus Rahm. The most importantdemands …
… carried out at Uppsala University in collaboration with the Division of Electricity and AppliedMechanical Engineering. The product was conceived and developed taking into consideration anumber of requirements put forward by the supervisor, Magnus Rahm. The most importantdemands …
Förstudie av förutsättningar för, - och lönsamhet med, solfångare för att värma terapibadet
… circuit might fall so it no longer can heat the pool. When this happens, an electric heater of 15 kW kicks in to heat the pool instead. Studies of the control signal to this electrical heater show that it heats the pool approximately from the middle of April until the beginning …
The electrical grid needs to be changed in the future in order to manage more distributed and renewable generation and also to make it possible for electricity consumers to be more active and aware of their electricity consumption. This future grid is usually referred to as a …
This thesis has been done in order to ease the process of drawing schematics of electrical wiring. The need arose after demand from the government due to a series of incidents that took place during the revision of the nuclear power plant in year 2009. The task of the project …
På Härjeåns Nät AB, med fokus på energi- och materialåtervinning
… Nät AB, mainly in Sveg. Härjeåns Nät AB is a network company that delivers electricity in Härjedalen municipality, Ånge Municipality, Ragunda and Bräcke municipality. The maintenance and dismantling of electricity and broadband networks generates a lot of waste. The purpose of …
… on balancing power and grid expansions and would affect the whole Swedish electricity system. The aim of this report is to examine the factors affecting the wind power expansion in Sweden. How many wind power plants projects will obtain building permissions and what costs and …
… in a substantial trend towards electrification of powertrains. Storage of electrical energy is the fundamental component in this technology where the lithium-ion batteries are currently considered as the most appropriate solution. Lithium-ion batteries, however, as other types …
påverkan på ekonomi och miljö
… with building power plants to supply the city/region with district heating and electricity during a pre-set number of years. When the simulation is finished the result is graded in the following categories: economy, environment and quality. To evaluate the simulator three …
… that can be used to keep carnivores away from livestock. Some examples are electric fences, fladdry, guardian dogs, protection collars, bonding of sheep to cattle, translocation of carnivores and hunting. The using of guardian dogs is a new phenomenon in Sweden and has not yet …
… in profitability as a result of change in the future price of electricity and districtheating. The electricity price changes we have used in the sensitivity analysis are a priceincrease of 1%, 2% and 3%. The same goes for the price of district heating. We have assumeda …
