Blar i Institutt for energi og prosessteknikk på tittel
Viser treff 45-64 av 4164
-
A Machine Learning Approach to Correlation Development Applied to Fin-Tube Bundle Heat Exchangers
(Journal article; Peer reviewed, 2018)Heat exchanger designers need reliable thermal-hydraulic correlations to optimize heat exchanger designs. This work combines an adaptive sampling method with a Computational Fluid Dynamics (CFD) simulator to obtain increased ... -
A method to extract fishers’ knowledge (FK) to generate evidence for sustainable management of fishing gears
(Journal article; Peer reviewed, 2019)The dangerous effects of Abandoned, Lost or Discarded Fishing Gears (ALDFG) is documented in the literature. However, there exists an overall lack of understanding in quantifying the pollution loads of fishing gears (FG) ... -
A Methodology for Integrated, Multiregional Life Cycle Assessment Scenarios under Large-Scale Technological Change
(Journal article; Peer reviewed, 2015)Climate change mitigation demands large-scale technological change on a global level and, if successfully implemented, will significantly affect how products and services are produced and consumed. In order to anticipate ... -
A modified homogeneous relaxation model for CO2 two-phase flow in vapour ejector
(Journal article; Peer reviewed, 2016)In this study, the homogenous relaxation model (HRM) for CO2 flow in a two-phase ejector was modified in order to increase the accuracy of the numerical simulations The two- phase flow model was implemented on the effective ... -
A multi-impact analysis of changing ICT consumption patterns for Sweden and the EU: Indirect rebound effects and evidence of decoupling
(Journal article; Peer reviewed, 2019)Information and Communication Technology (ICT) is one of the major areas of growth in consumption seen over the last two decades. The falling prices of ICT and increasing energy efficiency of ICT may lead to reduced spending ... -
A multi-regional soil phosphorus balance for exploring secondary fertilizer potential: the case of Norway
(Journal article; Peer reviewed, 2015)Phosphate rock is a non-renewable source of phosphorus (P) in mineral fertilizer and many countries need to use P fertilizer more efficiently in food production. This study explored the theoretical fertilizer potential of ... -
A Multimedia Hydrological Fate Modeling Framework To Assess Water Consumption Impacts in Life Cycle Assessment
(Journal article; Peer reviewed, 2018)Many new methods have recently been developed to address environmental consequences of water consumption in life cycle assessment (LCA). However, such methods can only partially be compared and combined, because their ... -
A Multiphase Pump Experimental Analysis
(Doctoral thesis at NTNU;2016:215, Doctoral thesis, 2016)This research project focuses on the characterization of the behaviour of a mixed-flow pump under off-design conditions and two-phase operation, in terms of performance degradation and instabilities. The recent multiphase ... -
A multiple-resolution scheme for DNS of scalar fields in turbulent flows
(Master thesis, 2022)For turbulente strømninger med tilstedeværelse av et aktivt eller passivt skalarfelt, tilsvarende Kolmogorov-skalaen η, er de minste skalaene hvor skalarkonsentrasjon transporteres definert som Batchelor-skalaen λ_B. Når ... -
A new approach to the identification of high-potential materials for cost-efficient membrane-based post-combustion CO2 capture
(Journal article; Peer reviewed, 2018)Developing “good” membrane modules and materials is a key step towards reducing the cost of membrane-based CO2 capture. While this is traditionally being done through incremental development of existing and new materials, ... -
A new Design of a Francis Turbine in order to reduce Sediment Erosion
(Master thesis, 2010)This Master Thesis is about the sand erosion challenges with the Francis turbines. The background for studying this subject is the fact that the sand erosion problem is a very negative factor for the development of new ... -
A New Extended Corresponding States Equation of State for Modelling CO2-Water Thermodynamics - A Compromise for CFD
(Doctoral theses at NTNU;2017:264, Doctoral thesis, 2017)This PhD work is part of the CO2 Dynamics project in collaboration with Sintef Energy. We investigated the importance of accurate modelling of CO2 thermodynamic properties for process design. The study was conducted for ... -
A new paradigm in process synthesis focus on design of power plants and industrial processes integrated with CO2 capture
(Journal article; Peer reviewed, 2016)Process synthesis methods have only recently been applied for the design of CO2 capture systems. At the crux of the CO2 capture process is a separation technology (sorbent, membrane or phase separation) applied to CO2/N2, ... -
A New Technical Concept for Water Management and Possible Uses in Future Water Systems
(Journal article; Peer reviewed, 2019)A new degree of freedom in water management is presented here. This is obtained by displacing water, and in this paper is conceptually explained by two methods: using an excavated cavern as a container for compressed air ... -
A Nonsmooth Approach to Modeling and Optimization - Application to Liquefied Natural Gas Processes and Work and Heat Exchange Networks
(Doctoral theses at NTNU;2020:54, Doctoral thesis, 2020)Despite their implicit presence in many process systems engineering applications, nonsmooth functions have repeatedly been shunned due to the existence of nondifferentiable points that cause issues for numerical solvers ... -
A Norwegian ZEB-definition embodied emission
(ZEB Project report;17-2014, Research report, 2014) -
A Norwegian zero emission neighbourhood (ZEN) definition and a ZEN key performance indicator (KPI) tool
(Journal article; Peer reviewed, 2019)Within the Norwegian Research Centre for Zero Emission Neighbourhoods (ZEN) in smart cities, a definition for achieving zero emission neighbourhoods will be developed and tested against nine pilot areas. The ZEN definition ... -
A Note on the Magnitude of the Feedback Effect in Environmentally Extended Multi-Region Input-Output Tables
(Journal article; Peer reviewed, 2018)Global multiregion input‐output (MRIO) tables have been developed to capture international spillover effects due to demand in one country and production in other countries. International spillovers have been growing and ... -
A Novel Approach to Flow Model Turbulence Validation Using a Long Range Pulsed Lidar
(Master thesis, 2017)Flow models are useful to predict wind conditions for wind energy production purposes. However, as wind power development expands into areas of even more complex terrain and challenging flow conditions, more research is ... -
A novel maximum entropy approach to hybrid monetary-physical supply-chain modelling and its application to biodiversity impacts of palm oil embodied in consumption
(Journal article; Peer reviewed, 2018)The environmental and social consequences of clearing tropical forests for palm oil and soybean monoculture have been analyzed in a number of studies and are widely recognized. Some initiatives and studies have examined ...