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Doctoral student Contact details Email: lina [dot] lefstad [at] LUCSUS [dot] lu [dot] se Phone: +46 46 222 03 62Organisation LUCSUS (Lund University Centre for Sustainability Studies) Service point: 59 WebpageLina Lefstads profile in Lund University research portalOther affiliations Health and safety representative LUCSUS (Lund University Centre for Sustainability Studies) Profile area member LU P
https://www.humanrights.lu.se/lina-lefstad - 2026-06-04
Considerable progress in the investigation of the electronic and vibrational properties of atoms, molecules, materials, surfaces and interfaces has been achieved by combining different photon sources of complementary characteristics. In this paper some experimental results obtained recently at LURE by using two synchronized sources, such as the IR free-electron laser (FEL) CLIO, the VUV storage ri
Photosynthesis is performed by a multitude of organisms, but in P nearly all cases, it is variations on a common theme: absorption of light followed by energy transfer to a reaction center where charge separation takes place, This initial form of chemical energy is stabilized by the biosynthesis of carbohydrates. To produce these energy-rich products, a substrate is needed that feeds in reductive
In this paper the design and demonstration of a 7 nm(3) h(-1) integrated steam reforming based hydrogen production unit using a Fischer-Tropsch diesel is reported. The system design is discussed in detail, including the fuel processor itself as well as the hydrogen purification and results from stand-alone operation of the combined unit operations is reported. Further, the results of an integratio
The Division of Sustainable Energy Systems is a merger of the former divisions Combustion Engines and Efficient Energy Systems. The combustion engine activities focus on enabling a transition to sustainable energy conversion through engines powered by renewable fuels. The work within the Efficient Energy Systems group concerns energy use, network-based energy systems such as district heating, gas
https://www.energy.lth.se/about/divisions/sustainable-energy-systems - 2026-06-03
Heating & cooling, transportation and agriculture are examples of energy intense sectors that are essential to provide sustainable living conditions, food and societal development according to the UN’s 17 sustainable development goals. Unfortunately, most energy used globally today is still in the form of fuels of fossil origin that in their use lead to unsustainable and negative impact to people,
https://www.energy.lth.se/research/sustainable-fuels - 2026-06-03
Till följd av den pågående energikrisen har vi under 2022 upplevt skenande elpriser och hot om bortkoppling av kunder från elnätet. Nya lösningar som säkerställer tillgång på el och balans i elnätet är nödvändiga. En lösning som visar stor potential är lagring av energi i vätgas. En av utmaningarna som Sveriges elnät står inför, och som det pratats mycket om den senaste tiden, är effektbrist. Eff
This work demonstrates that hydrogen can be reversibly stored in a composite of NaF and Al. NaF and Al reacts to a mixture of Na3AlF6 and NaAlH4 via hydridofluoride phases of the form Na3AlH6-xFx. The analysis of thermodynamics based on literature standard enthalpies of formation yields the technically favourable enthalpy of reaction of roughly 35 kJ/mol H-2 for a theoretical gravimetric hydrogen
Mg-10 mol% LiBH4 composite plus small amounts of FeF3 is investigated in the present work. The presence of LiBH4 during the milling process noticeably modifies the size and morphology of the Mg agglomerates, leading to faster hydrogenation and reaching almost the theoretical hydrogen capacity owing to enhanced hydrogen diffusion mechanism. However, the dehydrogenation of the system at low temperat
Möjliga vägar för grön vätgas från Nordsjön Hur kan vi förse framtidens användare med vätgas? Den havsbaserade vindkraften är på frammarsch och vätgas ser ut att kunna bli vindkraftens starkaste allierade. Men hur får vi vätgasen från vindkraftsområdena till där den ska användas? Behöver vi omvandla den till mer effektiva former? Vilket transportsätt är bäst? Nu har vi svaret på dessa frågor fö
I takt med att klimatförändringarna blir en allt mer akut fråga ökar efterfrågan på hållbara transportlösningar, särskilt i glesbygdsområden där alternativen ofta är begränsade. Denna uppsats undersöker potentialen för små eldrivna tåg – i storlek liknande bussar och drivna antingen av batterier eller bränsleceller – för användning på icke-elektrifierade järnvägslinjer på ett kostnadseffektivt
The combined challenge of climate change and population aging requires novel solutions that enhance the resilience of building energy systems and secure indoor comfort for vulnerable occupants in extreme weather conditions. This research investigates the performance of a newly developed Energy Management (EM) system based on Collective Intelligence (CI) and Reinforcement Learning (RL), called CIRL
Climate policy objectives require zero emissions across all sectors including steelmaking. The fundamental process changes needed for reaching this target are yet relatively unexplored. In this paper, we propose and assess a potential design for a fossil-free steelmaking process based on direct reduction of iron ore with hydrogen. We show that hydrogen direct reduction steelmaking needs 3.48 MWh o
