Browsing Institutt for energi og prosessteknikk by Title
Now showing items 2630-2649 of 4147
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Near-field response of an axisymmetric jet to transverse acoustic forcing
(Doctoral theses at NTNU;2020:142, Doctoral thesis, 2020)The overall aim of this thesis was to investigate a transversely forced, round air-jet, with focus on the coherent vortex structures formed in the near-field of the jet. Increased knowledge about the interaction between ... -
Near-field response of an axisymmetric jet to transverse acoustic forcing
(Chapter, 2016)Reacting flows in annular enclosures, such as combustion chambers in gas turbine engines, are subject to acoustic waves that inevitably interact with the primary flow [1]. In this study we consider a simplified case of a ... -
Near-Wake of an Inclined 6:1 Spheroid at Reynolds Number 4000
(Journal article; Peer reviewed, 2019)The flow around a 6:1 prolate spheroid at 45 deg inclination angle and Reynolds number 4000 (based on the minor axis) is described. Despite the fact that the inflow is uniform and steady, the resulting wake is highly ... -
Necessary Measures to Include more Distributed Renewable Energy Sources into District Heating System
(Journal article; Peer reviewed, 2017)Low temperature district heating (LTDH) can increase the integration of renewable and waste energy sources that have lots of reliability and acceptance issues. This article aims to identify necessary measures to enable ... -
The necessity to standardise primary energy quality in achieving a meaningful quantification of related indicators
(Journal article; Peer reviewed, 2023)The representativeness of several important parameters, such as energy return on investment (EROI) and those requiring summing primary energy (PE), are often questioned due to the gap in PE quantification technique. This ... -
Neddykket sentrifugalpumpe, design av sneglehus
(Master thesis, 2008)SammendragOppgaven omhandler et nytt design av Framo lossepumpe SD 125. Dagens versjon av pumpen ble i prosjektoppgave høst 2007 vurdert med tanke på hydraulisk design. Der ble det og diskutert en alternativ metode for å ... -
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 ... -
Neighbourhood building stock model for long-term dynamic analyses of energy demand and GHG emissions
(ZEN Report;, Research report, 2018)How should sustainable neighbourhoods be designed to reduce greenhouse gas emissions towards zero? What kind of information does decision makers need to make solid future plans on the neighbourhood level? A detailed ... -
Neighbourhood building stock model for long-term dynamic analyses of energy demand and GHG emissions. General model description and case studies
(ZEN Report;, Research report, 2018) -
Net Climate Effects of Moose Browsing in Early Successional Boreal Forests by Integrating Carbon and Albedo Dynamics
(Peer reviewed; Journal article, 2023)Moose (Alces alces) is a large herbivore that can mediate boreal forest regeneration after timber harvest through selective browsing of tree species. Despite increasing evidence of moose browsing influence on tree growth ... -
NEW AND ENERGY EFFICIENT DRYING FOR PROTEIN MIXTURES: Treatments and drying conditions effects on product quality and kinetics
(Master thesis, 2012)Drying is an essential process applied in most industry to remove moisture and extend the shelf life of final dried products without refrigeration. The challenges are to develop technologies to minimize the impact to ... -
A new approach of optimal appliance scheduling for peak load reduction of an off-grid residential building
(Peer reviewed; Journal article, 2022)Demand for electricity, due to the fast growth in urbanization and industrialization, is on the rapid rise. Load shift is a basic method for demand side management (DSM) that can be used by the central controller in buildings ... -
A new cold cooling system using krypton for the future upgrade of the LHC after the Long Shutdown 4 (LS4)
(Peer reviewed; Journal article, 2024)Future silicon detectors for High Energy Physics Experiments will require operation at lower temperatures to cope with radiation damage of the sensors and consequent increase of the dark current, beyond the limit of the ... -
A new data mining strategy for performance evaluation of a shared energy recovery system integrated with data centres and district heating networks
(Journal article; Peer reviewed, 2023)This study presents a new data mining strategy to discover the performance and operational patterns of a shared energy recovery (SER) system with a data centre and a district heating network. Multidimensional clustering ... -
A new design of catalytic tube reactor for hydrogen production from ethanol steam reforming.
(Peer reviewed; Journal article, 2020)A new design of the catalytic tube system with a crossflow configuration, featured by low catalyst usage and cost, is developed using computational fluid dynamics (CFD). Meanwhile, the kinetics of ethanol steam reforming ... -
New dose-response model and SARS-CoV-2 quanta emission rates for calculating the long-range airborne infection risk
(Peer reviewed; Journal article, 2022)Predictive models for airborne infection risk have been extensively used during the pandemic, but there is yet still no consensus on a common approach, which may create misinterpretation of results among public health ... -
New indicator of habitat functionality reveals high risk of underestimating trade-offs among sustainable development goals: The case of wild reindeer and hydropower
(Peer reviewed; Journal article, 2023)Although biodiversity is crucial for Sustainable Development Goals (SDGs), following the current trajectory, we risk failing SDG 15. Using a new indicator quantifying the loss of functional habitat (habitat that is ... -
New Insights into Computational Fluid Dynamic Modeling of the Resistivity and Overpotential in Reverse Electrodialysis
(Journal article; Peer reviewed, 2018)The resulting electrical potential of a reverse electrodialysis is reduced both due to ohmic and non-ohmic resistances. The non-ohmic resistance is mainly controlled by concentration polarization which is a considerable ... -
New Insights into the Modeling of Energy Generation and Storage by Salinity Gradients
(Doctoral theses at NTNU;2021:25, Doctoral thesis, 2020) -
New market models for export of excess heat from buildings
(Master thesis, 2016)Office buildings, commercial buildings, IT centers, supermarkets, and hospitals may have excess heat from cooling equipment or some other processes. This heat may be used within the building or exported to the district ...