Browsing Brage NMBU by Author "Olsen, Espen"
Now showing items 1-20 of 62
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A Model for the Zero Emission Gas Technology as a Tool for Process Optimization
Malik, Daud (Master thesis, 2016)The ZEG-technology (Zero Emission Gas - ZEG®) is highly efficient technology for co-production of hydrogen and electric power with integrated CO2 capture. The purpose of this study is to simulate the ZEG-technology in ... -
A review of imaging methods for detection of photoluminescence in field-installed photovoltaic modules
Vukovic, Marija; Wiig, Marie Syre; Benatto, Gisele Alves dos Reis; Olsen, Espen; Burud, Ingunn (Peer reviewed; Journal article, 2024) -
A study of the performance of two wall attached PV systems in a Nordic climate
Milde, Linn Tabita (Master thesis, 2018)Mengden installert PV i Norge øker. Bygningsfestet og bygningsintegrerte solceller har blitt populære, og markedet for næringsbygg øker. Det er viktig å ta hensyn til den potensielle produksjonen når det installeres et PV ... -
Analysis of discrepancies between simulated and actual energy production for a photovoltaic system in Norway
Rør, Ulrik Vieth (Master thesis, 2016-08-31)The purpose of this study was to investigate and analyze parameters that influence the discrep- ancy between simulated and actual energy production for a photovoltaic (PV) system in south- eastern Norway for the year 2015. ... -
Analysis of soiling data and its effects on the performance of utility-scale PV plants
Løkkeberg, Anders Torp (Master thesis, 2022)Gjennom de siste årene har solenergi fått et løft politisk, teknologisk og sosialt. Høye elektrisitetskostnader, globale katastrofer og klimaendringer har lagt grunnlaget for satsingen på elektrisk kraftproduksjon fra ... -
Carbon capture by CaO in molten halide salts
Tomkute, Viktorija (PhD Thesis;2014:4, Doctoral thesis, 2014) -
Carbon capture in molten salts : an extensive survey of chemical systems with MgO as sorbent
Lerøen, Petter Nygård (Master thesis, 2020)Stated in the Paris Agreement, utilization of Carbon Capture and Storage (CCS) technologies are an essential part of curbing the increasing trend of carbon dioxide (CO2) emissions into the atmosphere. CCS is a relatively ... -
Chaos enhanced light trapping in optically thin solar cells
Seim, Eivind (PhD thesis;2020:3, Doctoral thesis, 2020)Photovoltaics is one of the most important sources of renewable energy. Solar cells with thin absorbing layers can be more cost-effective and leave a smaller environmental footprint than the current commercial technology. ... -
Chaos: A new mechanism for enhancing the optical generation rate in optically thin solar cells
Seim, Eivind; Kohler, Achim; Lukacs, Rozalia; Brandsrud, Maren Anna; Marstein, Erik Stensrud; Olsen, Espen; Blümel, R. (Peer reviewed; Journal article, 2019)The photogenerated current of solar cells can be enhanced by light management with surface structures. For solar cells with optically thin absorbing layers, it is especially important to take advantage of this fact through ... -
CO2-fangst i saltsmelter : absorpsjon og desorpsjon av CO2 i smeltet NaF/CaF2 med CaO-sorbent
Korvald, Ana Karoline (Master thesis, 2013-05-16)Verdens avhengighet av fossil energi har allerede resultert i en sterk økning i atmosfæriske CO2-nivåer og en medfølgende oppvarming av den nedre delen av atmosfæren. FNs Klimapanel (IPCC, Interngovernmental Panel of Climate ... -
Defect related radiative recombination in mono-like crystalline silicon wafers
Bergan, Simen (Master thesis, 2016-08-31)The aim of this work was to investigate defect related luminescence emission in four mono-like silicon wafers. The seed-assisted silicon ingot is built by six Czochralski silicon slabs, with nine seed junctions. The ... -
Defects in multicrystalline Si wafers studied by spectral photoluminescence imaging, combined with EBSD and dislocation mapping
Mehl, Torbjørn; Di Sabatino Lundberg, Marisa; Adamczyk, Krzysztof; Burud, Ingunn; Olsen, Espen (Journal article; Peer reviewed, 2016) -
Design and simulation of a grid-conneted PV system in South Africa : technical, commercial and economical aspects
Klever, Marie (Master thesis, 2018)The purpose of this thesis is to evaluate the potential and economic feasibility of installing a grid-connected photovoltaic (PV) system at Panthera Africa, located in Overstrand municipality in South Africa. Panthera ... -
Deteksjon av termiske donorer i p-type Cz-Si ved romtemperatur
Nilssen, David Andreas (Master thesis, 2022)I denne oppgaven ble det studert om etsing av p-type Cz-Si wafere hadde noen effekt på deteksjon av termiske donorer (TD) ved romtemperatur. Termiske donorer er defekter som oppstår i monokrystallinsk Silisium ved ... -
Effect of salt composition and temperature on the thermal behavior of beech Wood particles in molten salt pyrolysis
Nygård, Heidi S.; Olsen, Espen (Journal article; Peer reviewed, 2014) -
Electrochemical removal of impurities in molten ZnCl2-KCl-NaCl
Flakke, Helene (Master thesis, 2021)As part of the ongoing development to create renewable fuel sources the ABC salt project (Horizon2020 (grant agreement number 764089)) is creating a lab scale catalytic conversion of biomass into biofuel. The process of ... -
Evaluation of a CO2 Separation Process Using CaO in Molten CaF2-NaF
Tomkute, Viktorija; Solheim, Asbjørn; Sakirzanovas, Simas; Olsen, Espen (Journal article; Peer reviewed, 2016) -
An exact ray model for oblique incident light on planar films
Brandsrud, Maren Anna; Blümel, Reinhold; You, Chang Chuan; Marstein, Erik Stensrud; Seim, Eivind; Lukacs, Rozalia; Olsen, Espen; Kohler, Achim (Peer reviewed; Journal article, 2021)During recent years, ray tracing has frequently been used to study the absorption characteristics of structured solar cells. However, wave properties such as absorption enhancement due to resonances in optically thin solar ... -
An exact ray model for oblique incident light on planar films
Brandsrud, Maren Anna; Blümel, Reinhold; You, Chang Chuan; Marstein, Erik Stensrud; Seim, Eivind; Lukacs, Rozalia; Olsen, Espen; Kohler, Achim (Peer reviewed; Journal article, 2021)During recent years, ray tracing has frequently been used to study the absorption characteristics of structured solar cells. However, wave properties such as absorption enhancement due to resonances in optically thin solar ... -
Exact ray theory for the calculation of the optical generation rate in optically thin solar cells
Brandsrud, Maren Anna; Seim, Eivind; Lukacs, Rozalia; Kohler, Achim; Marstein, Erik Stensrud; Olsen, Espen; Blümel, Reinhold (Journal article; Peer reviewed, 2018)There is a profound duality between rays and waves. In fact, 70 years ago, in the context of quantum mechanics, Feynman showed that rays, properly equipped with phases and correctly summed, provide exact solutions of the ...