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In this study, different membranes were tested for their use in a vanadium redox flow battery (VRB). The membranes were first tested under charge-discharge operation of the VRB over four charge-discharge cycles at different current densities (20 mAcm-2, 40 mA cm-2 and 60 mAcm-2) and the corresponding cell performance was evaluated in terms of total energy efficiency (EE), coulombic efficiency (CE)

The transition to sustainable energy sources is a critical challenge facing Europe as it aims to achieve net-zero greenhouse gas emissions by 2050. This master thesis explores the potential role of fusion energy in the future European energy market, focusing on Novatron Fusion Group's strategic positioning within this evolving landscape. The study uses a mixed methods approach, combining both

Popular Abstract in Swedish Denna skrift behandlar marklagring av värme, kyla och kärnavfall.

We report results from experiments where we characterize the surface properties of soot particlesinteracting with high-pressure methane. We find considerable differences in behavior of the soot materialbetween static and dynamic pressure conditions that can be explained by multiscale correlations inthe dynamics, from the micro to macro of the porous fractal-like carbon matrix. The measurements wer

I takt med att andelen förnybar el ökar så ökar även efterfrågan på flexibilitet i elnätet. Flexibilitet behövs bland annat för att tillhandahålla frekvensreglering. Om elförbrukningen och elproduktionen tillfälligt är i obalans kommer frekvensen i elnätet att avvika från sitt börvärde. För att skydda mot dessa obalanser upphandlar Svenska Kraftnät flera olika frekvensregleringstjänster. Som ett rAs the penetration of variable renewable energy is increasing, the demand for flexibility in the electrical grid is on the rise. One way in which flexibility is needed is to provide frequency regulation. If electricity consumption and production momentarily are unbalanced there needs to. The Swedish TSO, Svenska Kraftnät, procures multiple different frequnecy regulation services to protect against

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

European Spallation Source ESS will have the most powerful neutron source in the world. The research facility is currently being built in north-east Lund. At ESS, scientists will be able to study different types of materials to understand how they are built and how they function. For example, they will be able to test biological samples to see how drugs are absorbed into the body.Studying the smal

https://www.lunduniversity.lu.se/research-and-innovation/research-infrastructures/ess - 2026-06-25

When looking at energy supply on a larger scale than to a single building, such as to a neighbourhood or a city, the combined effects of peak power demands can be seen to cause problems on the production side. These can be both economic and environmental and lead to the emission of greenhouse gases when fossil fuels are used to meet these peaks. Encouraging the demand side to reduce their power de

The continuous increase in global energy consumption has led to a greater focus on the energy required for heating buildings. This thesis presents a techno-economic model for analysing low-temperature district heating networks coupled with a geothermal heat source. The model was used to analyse an existing system in Denmark with 15 connected single-family detached houses. Each of the houses has a