Browsing Institutt for energi og prosessteknikk by Document Types "Journal article"
Now showing items 21-40 of 1742
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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 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 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 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 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 ... -
A novel methodology for Rankine cycle analysis with generic heat exchanger models
(Journal article; Peer reviewed, 2019)This study presents a novel approach for Rankine cycle (RC) analysis, introducing a generic counter current heat exchanger (HX) model to enable basic fluid thermal and flow behaviour in HXs to be considered in a cycle ... -
A numerical study on vortex-induced vibrations and the effect of slurry density variations on fatigue of ocean mining risers
(Journal article; Peer reviewed, 2019)Ocean mining emerges as a way of meeting future demands for valuable minerals. Risers conveying ore from the seabed to the surface must withstand large wave and current loads. In addition, vortex-induced vibrations (VIV) ... -
A Parametric Study of LEM3D Based on Comparison with a Turbulent Lifted Hydrogen Jet Flame in a Vitiated Co-Flow
(Journal article; Peer reviewed, 2019)A novel model, the hybrid RANS-LEM3D model, is applied to a lifted turbulent N 2 diluted hydrogen jet flame in a vitiated co-flow of hot products from lean H 2 /air combustion. In the present modeling approach, mean-flow ... -
A qualitative reliability and operability analysis of an integrated reforming combined cycle plant with CO2 capture
(Journal article, 2009)Most of the current CO2 capture technologies are associated with large energy penalties that reduce their economic viability. Efficiency has therefore become the most important issue when designing and selecting power ... -
A reference pelton turbine - design and efficiency measurements
(Journal article; Peer reviewed, 2014)The Pelton turbine has been subject to a varying degree of research interest since the debut of the technology over a century ago. Despite its age there are gaps in the knowledge concerning the flow mechanisms effecting ... -
A review of the curious case of heat transport in polymer electrolyte fuel cells and the need for more characterisation
(Journal article; Peer reviewed, 2017)As the polymer electrolyte membrane fuel cell (PEMFC) matures performance keeps increasing—mainly in terms of conversion rate rather than efficiency. Increased conversion results in increased heat release. Fuel cell ... -
A Review of the Role of Critical Parameters in the Design and Operation of Biogas Production Plants
(Journal article; Peer reviewed, 2019)Many operating parameters, individually or together, may influence the performance of anaerobic digestion towards biogas or digestate yield and quality maximization. The most preferred method of optimizing an anaerobic ... -
A review on fluid structure interaction in hydraulic turbines: A focus on hydrodynamic damping
(Journal article; Peer reviewed, 2017)Hydraulic turbines include stationary and rotating components. The interaction of the components, mainly between the runner blades and distributor vanes, is critical when the frequency of the rotor-stator interaction (RSI) ... -
A robust method for calculating interface curvature and normal vectors using an extracted local level set
(Journal article, 2014)The level-set method is a popular interface tracking method in two-phase flow simulations. An often-cited reason for using it is that the method naturally handles topological changes in the interface, e.g. merging drops, ... -
A scanning particle tracking velocimetry technique for high‑Reynolds number turbulent flows
(Journal article; Peer reviewed, 2019)We propose a novel robust 3D particle tracking technique based on a scanning laser setup. The method yields Lagrangian statistics in densely seeded turbulent flows with good spatial and temporal resolution, overcoming some ... -
A scanning particle tracking velocimetry technique for high‑Reynolds number turbulent flows
(Journal article; Peer reviewed, 2019)We propose a novel robust 3D particle tracking technique based on a scanning laser setup. The method yields Lagrangian statistics in densely seeded turbulent flows with good spatial and temporal resolution, overcoming some ... -
A Simplified Power Sizing Method for the Correct Building Integration of Wood Stoves
(Journal article; Peer reviewed, 2019)Wood stoves are widely used in dwellings for space heating, however transient heat output and relatively large heat emission might cause problems with over-heating in new well-insulated buildings. This paper introduces a ...