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Simulation of the dipole pattern of summer precipitation over the Tibetan Plateau by CMIP6 models
(Peer reviewed; Journal article, 2021)The dipole pattern of summer precipitation over the Tibetan Plateau (TP) during 1961–2014 is evaluated based on observations and 18 models provided by the Coupled Model Intercomparison Project Phase 6. Of the 18 models, ... -
Negative emission potentials, agronomic and environmental effects of biochar application to agricultural land
(Doctoral theses at NTNU;2022:366, Doctoral thesis, 2022)In 2015 the international community signed the Paris agreement with the aim of maintaining global warming below 2°C. Negative emissions technologies (NETs) that are able of removing atmospheric carbon dioxide for storage ... -
Numerical investigation of an oil-free liquid-injected screw compressor with ammonia-water as refrigerant for high temperature heat pump applications
(Peer reviewed; Journal article, 2022)This study investigates a numerical model of an oil-free twin screw compressor with an ammonia-water mixture as refrigerant and liquid injection. The compressor was identified as the main constraint to increase the heat ... -
Native range estimates for red-listed vascular plants
(Peer reviewed; Journal article, 2022)Besides being central for understanding both global biodiversity patterns and associated anthropogenic impacts, species range maps are currently only available for a small subset of global biodiversity. Here, we provide a ... -
Flow field and performance of a vertical-axis wind turbine on model buildings
(Journal article, 2022)The placement of a scaled-down Savonius (drag) vertical-axis wind turbine on model buildings is analysed experimentally by the use of turbine performance and flow field measurements in a wind tunnel. The set-up consists ... -
A Non-Compact Effective Impedance Model for Can-To-Can Acoustic Communication: Analysis and Optimization of Damping Mechanisms
(Peer reviewed; Journal article, 2021)Can-annular combustors can feature azimuthal instabilities even if the acoustic coupling between the individual cans is weak. Recently, various studies have focused on modeling the acoustic communication between adjacent ... -
Enhancing the efficiency of power- and biomass-to-liquid fuel processes using fuel-assisted solid oxide electrolysis cells
(Journal article; Peer reviewed, 2022)Power- and biomass-to-liquid fuel processes (PBtL) can utilize renewable energy and residual forestry waste to produce liquid synthetic fuels, which have the potential to mitigate the climate impacts of the current ... -
Perturbation theory of nonlinear, non-self-adjoint eigenvalue problems: Semisimple eigenvalues
(Peer reviewed; Journal article, 2021)We discuss high-order adjoint based degenerate perturbation theory of semisimple eigenvalues resulting from nonlinear eigenvalue problems, which are typical of acoustic problems and vibrational analysis. The theory is ... -
Numerical simulation of the airborne transmission of COVID-19 due to respiratory activities under different ventilation conditions.
(Master thesis, 2022)Covid-19 pandemic have recently raised lots of issues about the way we lived socially and have led to various studies for our social behaviour to be adapted to struggle the crisis. This report presents the work done during ... -
Global sensitivity analysis and optimal design of heat recovery ventilation for zero emission buildings
(Peer reviewed; Journal article, 2023)Energy-efficient building services are necessary to realise zero-emission buildings while maintaining adequate indoor environmental quality. As the share of ventilation heating needs grow in well-insulated and airtight ... -
Experimental study on the exposure level of surgical staff to SARS-CoV-2 in operating rooms with mixing ventilation under negative pressure
(Peer reviewed; Journal article, 2022)The purpose of this study was to reveal the exposure level of surgical staff to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from the patient's nose and wound during operations on COVID-19 patients. The ... -
Stimulating biogas production from steam-exploded birch wood using Fenton reaction and fungal pretreatment
(Peer reviewed; Journal article, 2022)Delignification of steam-exploded birch wood (SEBW) was stimulated using a pretreatment method including Fenton reaction (FR) and fungi. SEBW was employed as a substrate to optimize the Fe(III) and Fe(II) dosage in FR. ... -
Dynamics and stability of autoignition fronts in elementary reheat combustor configurations
(Doctoral theses at NTNU;2022:371, Doctoral thesis, 2022)Stringent regulations on greenhouse gas emissions from gas turbines used for land-based and aircraft applications has resulted in a gradual transition towards carbon-free fuels such as hydrogen. Conventional single-stage ... -
Zonal modeling of air distribution impact on the long-range airborne transmission risk of SARS-CoV-2
(Peer reviewed; Journal article, 2022)A widely used analytical model to quantitatively assess airborne infection risk is the Wells-Riley model which is limited to complete air mixing in a single zone. However, this assumption tends not to be feasible (or ... -
Potentials and challenges for pillow-plate heat exchangers: State-of-the-art review
(Peer reviewed; Journal article, 2022)For a long time, shell-and-tube heat exchangers have been the most common choice in the industry. Despite some limitations, their main advantage is that they have been extensively investigated and reliable design tools are ... -
Games on Climate Change: Identifying Development Potentials through Advanced Classification and Game Characteristics Mapping
(Peer reviewed; Journal article, 2021)The challenges posed to humanity by climate change require innovative approaches. Well-designed games are powerful tools with the potential to support solving climate related challenges. In this article, we present a mapping ... -
Simplifying Electrode Design for Lithium-Ion Rechargeable Cells
(Peer reviewed; Journal article, 2022)In the race to increase lithium-ion cell manufacturing, labor and energy costs quickly ascend to become chief concerns for building new facilities, as conventional electrode designs need significant resources during ... -
Energy, economic and environmental analysis of a BOG re-liquefaction process for an LNG carrier
(Peer reviewed; Journal article, 2022)Due to tighter environmental regulations, newly built liquefied natural gas (LNG) carriers are equipped with a re-liquefaction system to minimize combustion of surplus boil-off-gas (BOG). Thus, this paper comparatively ... -
A review of heat recovery technologies and their frost control for residential building ventilation in cold climate regions
(Peer reviewed; Journal article, 2022)This study reviewed heat recovery technologies and their application in residential buildings in cold climates. The increasing efforts on reducing building energy use over the recent years have resulted in improved insulated ... -
Sensing as the key to battery lifetime and sustainability
(Peer reviewed; Journal article, 2022)Recent economic and productivity gains of rechargeable batteries have cemented their dominance in energy-intensive societies. With demand soaring, enhancing battery performance through continuous monitoring is essential ...
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