Blar i Institutt for energi og prosessteknikk på tittel
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Quantifying environmental impacts of river fragmentation from hydropower dams within Life Cycle Impact Assessment
(Master thesis, 2023)Økende produksjon av vannkraft er en av måtene å redusere menneskeskapte klimagassutslippene i årene som kommer, for å begrense klimaendringer. Imidlertid utgjør driften av vannkraftmagasiner en trussel mot ferskvannshabitater ... -
Quantifying Europe's biodiversity footprints and the role of urbanization and income
(Journal article; Peer reviewed, 2020)Biodiversity footprinting links consumers to the biodiversity pressure their consumption induces, thereby informing choices and enabling participation in remediation measures. In order for countries, cities and households ... -
Quantifying global habitat loss impacts from roads in a LCA context.
(Master thesis, 2023)Roads are one of the major causes of biodiversity loss. It is estimated that millions of animals die annually due to vehicle collisions. Furthermore, roads can induce habitat fragmentation, pollution, disturbance, and ... -
Quantifying net water consumption of Norwegian hydropower reservoirs and related aquatic biodiversity impacts in Life Cycle Assessment
(Journal article; Peer reviewed, 2019)Compared to conventional energy technologies, hydropower has the lowest carbon emissions per kWh. Therefore, hydropower electricity production can contribute to combat climate change challenges. However, hydropower electricity ... -
Quantifying the climate response to extreme land cover changes in Europe with a regional model
(Journal article; Peer reviewed, 2018)Many future scenarios expect a key role for the land use sector to stabilize temperature rise to 2 °C or less. Changes in land cover can influence the climate system, and the extent and magnitude of the anthropogenic ... -
Quantifying the Norwegian households' clothing system and its enviromental impacts for a transition towards a more circular economy
(Master thesis, 2021)Norway has the ambition to be at the forefront of the transition towards a Circular Economy. To achieve this the country needs to drastically increase its circularity metric, which in 2020 indicated that only 2.4% of the ... -
Quantifying the potential for consumer-oriented policy to reduce European and foreign carbon emissions
(Journal article; Peer reviewed, 2018)The EU Carbon-CAP project assembled a comprehensive portfolio of consumer initiatives in order to assess the potential total impact of consumer options on national carbon footprints. Existing evaluations of behavioural ... -
Quantitative Flood Risk Assessment in Drammenselva River, Norway
(Peer reviewed; Journal article, 2023)Floods are frequent natural hazards, triggering significant negative consequences for the economy every year. Their impact is expected to increase in the near future due to socio-economic development and climate change. ... -
Quasi-static Analyses of Slender Structures with Complex Cross-Sections using Explicit FEM Codes
(Master thesis, 2013)It has previously been done analyses to find global stiffness values of an umbilical cable, with mixed results or no results at all when subjected to bending. There have also been difficulties in finding a distinct stick-slip ... -
R744 ejector technology future perspectives
(Journal article; Peer reviewed, 2016)Carbon Dioxide, CO2 (R744) was one of the first commonly applied working fluids in the infancy of refrigeration more than 100 years ago. In contrast to ammonia it mainly disappeared after the first generation of synthetic ... -
R744 heat pump solutions for electric vehicles
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R744 HVAC unit for NSB Flirt trains
(Master thesis, 2017)The vast majority of current air conditioning systems, for railway HVAC applications, utilize high global warming potential (GWP) hydrofluorocarbon (HFC) refrigerants in a vapor compression cycle. In Europe, the dominating ... -
R744 Refrigeration Solution for Small Supermarkets
(Chapter, 2021)Application based technology solution is nowadays preferred to achieve the performance of the cooling system configuration at its best. Therefore, benchmarking is an essential criterion which would add value to the optimum ... -
Radiative forcing bias of simulated surface albedo modifications linked to forest cover changes at northern latitudes
(Journal article; Peer reviewed, 2015)In the presence of snow, the bias in the prediction of surface albedo by many climate models remains difficult to correct due to the difficulties of separating the albedo parameterizations from those describing snow and ... -
Radiative forcing geoengineering causes higher risk of wildfires and permafrost thawing over the Arctic regions
(Journal article; Peer reviewed, 2024)Radiative forcing geoengineering is discussed as an intermediate solution to partially offset greenhouse gas-driven warming by altering the Earth’s energy budget. Here we use an Earth System Model to analyse the response ... -
Rankine-Hugoniot-Riemann solver for steady multidimensional conservation laws with source terms
(Journal article; Peer reviewed, 2014)The Rankine-Hugoniot-Riemann (RHR) solver has been designed to solve steady multidimensional conservation laws with source terms. The solver uses a novel way of incorporating cross fluxes as source terms. The combined ... -
Rapid change of particle velocity due to volatile gas release during biomass devolatilization
(Peer reviewed; Journal article, 2021)Our earlier study showed significant differences in average particle velocity between simulation and experimental results for devolatilizing biomass particles in an idealised entrained flow reactor [N. Guo et al., Fuel, ... -
Rate based modelling of CO2 removal using alkanolamines
(Master thesis, 2014)CO2 is a major acid gas that is required to be removed from natural gas, in order to meet transportation specification. Chemical absorption using amine-based absorbents is a mature and well-known separation process applied ... -
Rate-based modeling of CO₂ absorption in amine solutions, evaluation of mass transfer, kinetics and scale-up
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:354, Doctoral thesis, 2013)Post-combustion CO2 capture (PCC) with chemical solvents is a near-term option for commercial deployment of CO2 capture from power plants. However, the technology is energy intensive and costly, and there is no experience ... -
The Rayleigh integral is always positive in steadily operated combustors
(Peer reviewed; Journal article, 2022)The Rayleigh index has been used for decades by a large number of researchers as an indicator to determine if a flame is driving or damping thermoacoustic interaction mechanisms. The use of the Rayleigh criterion has found ...