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With the trend of transport electrification, the fleet of delivery and transport vehicles with internal combustion engines taking fossil fuel in the terminals of logistics companies should be gradually replaced by electric vehicles (EVs). Expansion planning of the power system in the terminal is needed to meet the increased EV charging need. Different expansion solutions with variable technologies
Omvandling av energi har spelat en stor roll i samhällets utveckling: från eldens upptäckt via vatten- och väderkvarnar till kol och olja under industriella revolutionen. Gemensamt för alla dessa energiformer är att de antingen går att lagra, som i bränslenas fall, eller att variationer i vatten- eller väderförhållanden inte har någon stor påverkan på resultatet. I elnätet, däremot, måste det råda
Title: Improving charging scheduling of public transport electric buses Authors: Anna Hassler & Franz Bamberg Supervisor: Johan Marklund, Lund University Background: This thesis focuses on a Swedish BTO that operates EB fleets. For companies investing in electrification, record-high and volatile electricity prices, present challenges and creates a need to improve the charging scheduling of
The rapid growth of the global electric vehicle (EV) market has led to an increased focus on the lifecycle management of electric vehicle batteries (EVBs), particularly concerning their end-of-life (EoL) handling. The thesis explores and evaluates the implementation of reverse logistics (RL) setups for EoL EVBs of electric motorcycles in Kenya, a market that is observing an increasing EV sector bu
The rapid expansion of intermittent renewable energy sources has introduced substantial challenges to both the stability of the electrical grid and the economic viability of incumbent wind farms. In light of recent regulatory amendments within the energy market, stakeholders are compelled to adjust their operational strategies. Concurrently, the expansion of wind power has exacerbated price cannib
With increasing pressure to get rid of the world’s dependence on fossil fuels to reach the world’s climate goals, the use of alternative fuels for propulsion are needed. This is a challenge for the maritime industry, where ferries have good properties to become renewable by the usage of batteries. Their routes are mostly fixed routes and with good infrastructure established at each stop, fully bat
Sveriges elsystem står inför en rad kommande utmaningar. En lovande lösning till många av dessa är efterfrågeflexibilitet. Men vad är byggnaders möjligheter och begränsningar att vara flexibla i sin elanvändning? Förutsättningarna för elförsörjningen i Sverige förändras i takt med att kärnkraften gradvis fasas ut och ersätts med väderberoende elproduktion i form av vind- och solkraft. Detta sker Sweden is heading towards an energy system with less nuclear power and more intermittent energy sources. Together with the coming electrification of the transport and industry sector, this challenges the future stability of the Swedish power system. However, a part of the solution could be that consumption of electricity temporarily is adjusted to facilitate the operation of the power system, reco
The incineration furnace at National Veterinary Institute (SVA) in Uppsala, Sweden, runs approximately 2,150 hours a year and generates a large amount of waste heat. Some of this heat is partially recovered, and is used for heating one of the main buildings during the furnace operation. However, around 2,000 MWh is wasted annually due to unavailability of any storage system. This wasted heat is ap
Elektrifieringen av fordonsflottan kräver installation av laddinfrastruktur längs vägarna för resor då hem-eller depåladdning inte täcker behoven. Elvägar kan vara en lösning genom att förse bilar med ström under färd, också kallat dynamisk laddning. Dessutom kan elvägar hjälpa till att minska behovet av stora batterier i elbilar. Det är dock viktigt att ta hänsyn till att laddning av eldrivna fo
As the global energy sector undergoes a necessary transition toward renewable sources, Mexico has committed to significantly expanding its clean energy capacity. The Baja California Peninsula, with its rich solar and wind resources, presents a unique opportunity to lead this shift. The peninsula is composed of two states: Baja California and Baja California Sur. Baja California operates one electr
It is well known that Lithium-ion batteries in thermal runaway can emit gases with high hydrogen concentrations which, in case of delayed ignition, can cause a gas explosion. Aerosol suppression agents are sometimes used to suppress fires and/or prevent ignition of released gases in such situations. The agent has been studied for suppression of fires (diffusion flames), but less is known about the
I takt med omställningen till mer hållbara energisystem, med elbilen som en av de tydligaste symbolerna, växer behovet av material som inte bara snabbt kan leverera hög strömstyrka, utan också fyller flera funktioner för att kunna integreras i en allt mer dynamisk vardag. Energilagring måste dessutom vara säker, effektiv och redan från början utformas med återanvändning och återvinning i åtanke. FAs the demand for sustainable and efficient energy systems continues to grow, integrated energy solutions have sparked interest in materials that combine multiple functionalities within a single structure. Rather than serving a single purpose, such materials could store energy, catalyse chemical reactions, and even exhibit optical changes, enabling novel applications in smart devices and material
To meet the aims of the Paris climate agreement, it is necessary to reduce energy use in buildings. Efficient HVAC systems are a critical part in achieving a low delivered energy use. However, there is a lack of comparative information of the best HVAC systems for apartment buildings, which represent an increasing share of newly built floor area in the Nordic countries. Elements of HVAC systems we
In this work, a three-dimensional TiO2-graphene composite with large specific surface area is designed by freeze drying. In this architecture, primary TiO2 nanoparticles (less than 10 nm in size) are wrapped with graphene homogeneously, forming spherical secondary particles (≈100 nm), and the spherical TiO2 particles further agglomerate into platelet-like particles with several micrometers in size
I takt med att andelen variabel förnybar energi ökar i det svenska elsystemet krävs nya lösningar för att hantera utmaningar kopplade till intermittens, nätstabilitet och ekonomisk lönsamhet. Batterilagringssystem (BESS) lyfts fram som en av de mest lovande lösningarna för att möta dessa utmaningar. Detta examensarbete undersöker den tekniska och ekonomiska genomförbarheten av att integrera BESS m
