Filtyp
Världen är i ständig utveckling och den mest akuta frågan i vår tid, på ett globalt plan, är klimatkrisen. Vi behöver snabbt bygga ut och utveckla grön energiproduktion i Sverige, Europa och världen, för att ha en chans att undvika de värsta konsekvenser som just nu hotar vår planet. Vätgas har identifierats av EU och ett flertal länder globalt som en grundpelare i energitransitionen till ett foss
Recently, to reach zero emission levels, some new energy systems based on fuel cells have been developed. This paper presents a review of investigations of these systems by thermodynamics performance, mainly, energy and exergy analysis. With energy analysis, the performance of an energy conversion system cannot be effectively and accurately evaluated. But exergy analysis complements and reinforces
Abstract: Specific features of the pyridine structure make it a convenient model system to describe coal combustion; however, the main attention of researchers has been paid to the formation of the ortho-pyridyl, whereas the formation of meta- and para-pyridyls has been yet poorly studied. The rate constants of the formation of three pyridyl radicals originating from pyridine by hydrogen atom abst
En hybridpark bestående av vind- och solkraft förbättrar vätgasproduktionens prestanda jämfört med ifall kraftslagen agerar separat och kan dela på samma infrastruktur. Detta examensarbete är en förstudie som granskar möjligheten för två vindkraftverk med en effekt på vardera 2 MW att kompletteras med en solcellspark för att bilda en hybridpark med vätgasproduktion. Förstudien undersöker dess teknA hybrid power plant (HPP) existing of wind- and solar power improves the performance of the hydrogen production compared to the stand-alone alternative and can share infrastructure. This thesis views the possibility for two wind turbines with 2 MW power each to be combined with solar power to form a HPP with hydrogen production. The thesis investigates the plant’s technical, economic and permits
Iron Carbene SensitizersCurrently, Iron Carbene Sensitizers are a big part of research in our group, where the electronic properties of iron complexes are studied and adjusted. Using strongly σ-donating N-heterocyclic carbene (NHC) ligands, the aim is to alter the energy of electronic states in iron complexes, making them potential candidates as photosensitizers in solar cells. Because of abundanc
https://www.cas.lu.se/research/organic-chemistry/waernmark-group - 2026-06-15
Of the many ways hydrogen can be produced, this chapter focuses on biological hydrogen production 12 by thermophilic bacteria and archaea in dark fermentations. The thermophiles are held as promising candidates 13 for a cost-effective fermentation process, because of their relatively high yields and broad substrate palette. Yet 14 many challenges remain to be faced, including improving productivit
Sysav incinerates more than half a million ton of waste every year. A metallic fraction is filtered out from the material that is left after the incineration. This metallic fraction is then divided into one part containing larger objects and one part containing smaller objects. The latter fraction is hard to sell and gives rise to problems with dust at the site of storage. Since the fraction most
Microsoft Word - Nelida Gonzalez.doc Lund University Master’s Programme in International Environmental Science Thesis submitted in partial fulfillment of the requirements of the Masters Programme in International Environmental Science In collaboration with the Heat and Power Technology division at KTH Energy Technology Department Towards a Sustainable Energy Production: A study and comparison of t
https://www.lumes.lu.se/sites/lumes.lu.se/files/nelida_gonzalez.pdf - 2026-06-19
Universitetslektor Kontaktinformation E-post: anders [dot] ahlstrom [at] mgeo [dot] lu [dot] seOrganisation Miljö- och geovetenskapliga institutionen (MGeo) Hämtställe: 16 WebbplatsAnders Ahlströms profil i Lunds universitets forskningsportalAndra roller Universitetslektor Institutionen för naturgeografi och ekosystemvetenskap Medlem i Strategiskt forskningsområde BECC: Biodiversity and Ecosystem
https://www.nateko.lu.se/sv/anders-ahlstrom - 2026-06-18
As part of its efforts to secure a ‘net-zero society’, the UK government will take a strategic decision on the role of hydrogen in decarbonising homes within the next years. While scholars have recently advanced the social science research agenda on hydrogen technology acceptance, studies are yet to engage with the prospective dynamics of adopting ‘hydrogen homes’. In response, this study examines
Computational methods gained a widespread use in drug discovery. Understanding conformational dynamics of protein and mechanisms of protein-ligand binding are two major areas in drug discovery. Molecular dynamics (MD) simulation have been routinely used to study conformational dynamics of protein and mechanisms of protein-ligand binding. In classical MD simulation, the system often remains stuck i
For a detailed understanding of the function of photosystem II (PSII), a molecular structure is needed, The crystal structure has not yet been determined, but the PSII reaction center proteins D1 and D2 show homology with the L and M subunits of the photosynthetic reaction center from purple bacteria, We have modeled important parts of the D1 and D2 proteins on the basis of the crystallographic st
The predominantly populated conformation of carbohydrates in solution does not necessarily represent the biologically active species; rather, any conformer accessible without too large an energy penalty may be present in a biological pathway. Thus, the conformational preferences of a naphthyl xyloside, which initiates in vivo synthesis of antiproliferative glycosaminoglycans, have been studied by
Hydrogen has been proposed as a possible fuel for automotive applications. Methanol is one of the most efficient ways to store and handle hydrogen. By catalytic reformation it is possible to convert methanol into hydrogen and carbon monoxide. This paper reports an experimental investigation of Reformed Methanol Gas as Homogeneous Charge Compression Ignition (HCCI) engine fuel. The aim of the exper
The interaction of antikaons with nucleons and nuclei in the low-energy regime represents an active research field in hadron physics with still many important open questions. The investigation of light kaonic atoms is, in this context, a unique tool to obtain precise information on this interaction. The energy shift and broadening of the lowest-lying states of such atoms, induced by the kaon-nucle
Handledningsaritmetik Konsten att skapa olika slags värde ur avfall Hervé Corvellec & Johan Hultman Institution för Service Management, Campus Helsingborg, Lunds Universitet FoU dag på NSR 21 november 2012 Olika syn på värde Tre traditionella syn om värde inom ekonomiläran Arbetsvärde (Labour value) Utbytesvärde (Exchange value) Bruksvärde (Value in use) Uppmärksammad inom service management Behov
https://www.ses.lu.se/sites/ses.lu.se/files/corvellec_hultman_nsr_21_nov_2012.ppt - 2026-06-19
