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Efficiency in the process industry: Three thermodynamic tools for better resource use
(Peer reviewed; Journal article, 2020)In a world where resources are limited and their use will necessary have an impact, efficient handling of resources becomes essential. This review concerns three thermodynamic tools that can be systematically used to ... -
Efficiency of BIPV system – Field study in Norwegian climate
(1st Nordic conference on Zero Emission and Plus Energy Buildings, Conference object; Journal article; Peer reviewed, 2019)Use of solar cells (PV) and solar collectors are key remedies in buildings where a large part of the energy supply should be based on renewable energy. The aim of this work has been to evaluate calculated and measured solar ... -
Efficiency of CO2 Foam Mobility Control with Heterogeneous Reservoir Properties
(SINTEF Proceedings;7, Chapter; Peer reviewed; Conference object, 2021)We investigate how reservoir heterogeneity affects the efficiency of CO2 mobility control in saline aquifer storage. An ensemble of reservoir models is set up for simulation of CO2 injection with a quarter-five-spot well ... -
Efficiency of ultrasound training simulators: Method for assessing image realism
(Journal article; Peer reviewed, 2010) -
Efficient adjoint-based well-placement optimization using flow diagnostics proxies
(Peer reviewed; Journal article, 2021)Model-based optimization of placement and trajectories of wells in petroleum reservoirs by the means of reservoir simulation forecasts is computationally demanding due to the high number of simulations typically required ... -
Efficient Chain Structure for High-Utility Sequential Pattern Mining
(Peer reviewed; Journal article, 2020)High-utility sequential pattern mining (HUSPM) is an emerging topic in data mining, which considers both utility and sequence factors to derive the set of high-utility sequential patterns (HUSPs) from the quantitative ... -
Efficient Encoding of the Weighted MAX k-CUT on a Quantum Computer Using QAOA
(Peer reviewed; Journal article, 2021)The weighted MAX k-CUT problem consists of finding a k-partition of a given weighted undirected graph G(V, E), such that the sum of the weights of the crossing edges is maximized. The problem is of particular interest as ... -
Efficient energy systems for the dry-cured meat industry
(Chapter; Peer reviewed, 2017) -
Efficient flow diagnostics proxies for polymer flooding
(Journal article; Peer reviewed, 2017)Flow diagnostics refers to a family of numerical methods that within a few seconds can compute visually intuitive quantities illuminating flow patterns and well connections for full 3D reservoir models. The starting point ... -
Efficient hydrogen production with CO2 capture using gas switching reforming
(Journal article; Peer reviewed, 2019)Hydrogen is a promising carbon-neutral energy carrier for a future decarbonized energy sector. This work presents process simulation studies of the gas switching reforming (GSR) process for hydrogen production with integrated ... -
Efficient hydrogen production with CO2 capture using gas switching reforming (GSR): Technoeconomic assessment
(Chapter, 2019)Hydrogen is identified as one of the clean energy carriers in the future energy scenario. This work presents a process to produce low cost hydrogen with CO2 capture using gas switching reforming (GSR). The process steps ... -
Efficient Liquefaction of Carbon Dioxide on Superlyophobic Surfaces
(Journal article, 2019) -
Efficient Local Search on the GPU. Investigations on the Vehicle Routing Problem
(Research report, 2011)We investigate the performance increase potential of GPU implementations of local search. In particular, we report on how we managed to incrementally improve the implementation of a local search algorithm to a given GPU ... -
Efficient Parallelization of the Stochastic Dual Dynamic Programming Algorithm Applied to Hydropower Scheduling
(Journal article; Peer reviewed, 2015)Stochastic dual dynamic programming (SDDP) has become a popular algorithm used in practical long-term scheduling of hydropower systems. The SDDP algorithm is computationally demanding, but can be designed to take advantage ... -
Efficient Production of Clean Power and Hydrogen Through Synergistic Integration of Chemical Looping Combustion and Reforming
(Peer reviewed; Journal article, 2020)Chemical looping combustion (CLC) technology generates power while capturing CO2 inherently with no direct energy penalty. However, previous studies have shown significant energy penalties due to low turbine inlet temperature ... -
Efficient R744 technology for supermarket heating, cooling and refrigeration - a theoretical assessment of energy advantages in various Spanish cities
(Science et technique du froid;2018-3, Chapter; Peer reviewed, 2018) -
Efficient reordered nonlinear Gauss–Seidel solvers with higher order for black-oil models
(Peer reviewed; Journal article, 2019)The fully implicit method is the most commonly used approach to solve black-oil problems in reservoir simulation. The method requires repeated linearization of large nonlinear systems and produces ill-conditioned linear ... -
Efficient reordered nonlinear Gauss–Seidel solvers with higher order for black-oil models
(Peer reviewed; Journal article, 2019)The fully implicit method is the most commonly used approach to solve black-oil problems in reservoir simulation. The method requires repeated linearization of large nonlinear systems and produces ill-conditioned linear ... -
Efficient Wave Modeling Using Non-Hydrostatic Pressure Distribution and Free Surface Tracking on Fixed Grids
(ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering;Volume 2: CFD and FSI;OMAE2018-78158, Chapter, 2018-06-25)For the estimation of wave loads on offshore structures, relevant extreme wave events need to be identified. In order to achieve this, long term wave simulations of relatively large scales need to be performed. Computational ... -
Efficient well placement optimization under uncertainty using a virtual drilling procedure
(Peer reviewed; Journal article, 2021)An Automatic Well Planner (AWP) is used to efficiently adjust pre-determined well paths to honor near-well properties and increase overall production. AWP replicates modern geosteering decision-making where adjustments to ...