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The FlexPlan Approach to Include the Contribution of Storage and Flexible Resources in Grid Planning
(Chapter; Peer reviewed, 2020)This paper describes the main features of the new European research project FlexPlan. This project aims at establishing a new grid planning methodology considering the opportunity to introduce new storage and flexibility ... -
Energy efficient multiejector CO2 cooling system for high ambient temperature
(Peer reviewed; Journal article, 2020)Experimental evaluation of a multiejector CO2 cooling system of 33 kW cooling capacity is conducted for an Indian supermarket at high ambient temperature context. The test-rig is designed to depict the actual supermarket ... -
Experimental evaluation of a water based high temperature heat pump with novel high pressure lift turbo compressors
(Science et technique du froid;, Chapter, 2020)This paper evaluates a water based (R718) high temperature heat pump with novel high-pressure lift turbo compressors. The first stage turbo compressor is designed for steam compression and the second stage is designed for ... -
Optimal design and cost of ship-based CO2 transport under uncertainties and fluctuations
(Peer reviewed; Journal article, 2020)This study investigates the impact of operational fluctuations and uncertainties on the design and expected cost of ship-based CO2 transport. The model analysis is based on a two-stage stochastic investment model for a ... -
Depressurization of CO2 in a pipe:High-resolution pressure and temperature data and comparison with model predictions
(Peer reviewed; Journal article, 2020)The design of safe and cost-efficient CO2-transportation systems is an integral part of CO2 capture and storage (CCS) deployment. To achieve this, accurate transient flow models capturing the occurrence of gas, liquid and ... -
Dimensional Decomposition of Turbulent Reacting Flows
(Peer reviewed; Journal article, 2020)A dimensional-decomposition approach, decomposing 3D into 3×1D for turbulent (reacting) flows are motivated, discussed and investigated. In the three-dimensional Linear Eddy Model (LEM3D), three orthogonally intersecting ... -
Clustering and Dimensionality-reduction Techniques Applied on Power Quality Measurement Data
(Chapter; Peer reviewed, 2020)The power system is changing rapidly, and new tools for predicting unwanted events are needed to keep a high level of security of supply. Large volumes of data from the Norwegian power grid have been collected over several ... -
A Comprehensive Framework for Vulnerability Analysis of Extraordinary Events in Power Systems
(Peer reviewed; Journal article, 2020)Electric power systems are critical infrastructures subject to the possibility of extraordinary events with high societal consequences. Although such possibilities are often associated with very low probabilities of being ... -
An Industrial Trial of an Approach to Identification and Modelling of Cybersecurity Risks in the Context of Digital Secondary Substations
(Lecture Notes in Computer Science;12026, Chapter; Peer reviewed, 2020)We have in an earlier study proposed a set of requirements and an approach to identification and modelling of cybersecurity risks and their impacts on safety, within the context of smart power grids. The approach, which ... -
Stochastic Load Modeling of High-Power Electric Vehicle Charging - A Norwegian Case Study
(Chapter; Peer reviewed, 2020)In recent years, the number of electric vehicles (EVs) has increased rapidly. Due to technological advancement, government policies and the focus on reducing greenhouse gas emission, the growth can be expected to continue. ... -
Evaluation of Heat Recovery Heat Exchanger Design Parameters for Heat-to-Power Conversion from Metallurgical Off-Gas
(Science et technique du froid;2020-1, Chapter; Peer reviewed, 2020)Heat recovery heat exchangers for heat-to-power conversion from metallurgical off-gas should have a compact design that reduces component cost and footprint. The goal of our study is to investigate and identify key heat ... -
Virtual Friction for Oscillation Damping and Inertia Sharing from Multi-Terminal VSC-HVDC Grids
(Chapter; Peer reviewed, 2020)This paper proposes a control scheme for multi-terminal HVDC (MTDC) interconnections that introduces an effect equivalent to a mechanical coupling between asynchronous ac networks providing damping of frequency oscillations ... -
A Stochastic MPEC Approach for Grid Tariff Design with Demand-Side Flexibility
(Peer reviewed; Journal article, 2020)As the end-users increasingly can provide fexibility to the power system, it is important to consider how this fexibility can be activated as a resource for the grid. Electricity network tarifs is one option that can be ... -
Choice of reference, influence of non-additivity and present challenges in thermodynamic perturbation theory for mixtures
(Journal article; Peer reviewed, 2020) -
CO2 capture from waste-to-energy plants: Techno-economic assessment of novel integration concepts of calcium looping technology
(Peer reviewed; Journal article, 2020)n Waste-to-Energy (WtE) plants, municipal solid waste (MSW) is combusted while power and/or heat are produced. This approach will largely remain as a promising option to handle the MSW capacities in the future. Due to the ... -
Multimodal Two-Phase Flow Measurement Using Dual Plane ECT and GRT
(Peer reviewed; Journal article, 2020)The present work assesses the accuracy two phase flow measurement, based on cross-correlation and cross-spectrum velocity computation, using dual plane non-intrusive Electrical Capacitance Tomography (ECT), over a broad ... -
A transmission expansion model for dynamic operation of flexible demand
(Peer reviewed; Journal article, 2020)This paper proposes a model to include investments in demand flexibility into traditional transmission expansion problems under uncertainty. To do so, a dynamic power flow model is proposed. The model is solved via applying ... -
Comparing Three Methods for Design Analyses of Rankine Cycle for Waste Heat Recovery from Natural Gas Compression
(Science et technique du froid;2020-1, Chapter; Peer reviewed, 2020)This study applies three methods for design of Rankine cycles utilizing waste heat in the oil and gas industry. The methods differ in the level of detail of heat exchanger model applied and in the flexibility with respect ... -
Ice formation and growth in supercooled water–alcohol mixtures: Theory and experiments with dual fiber sensors
(Peer reviewed; Journal article, 2020)Increased knowledge on fluid-solid phase transitions is needed, both when they are undesired and can impair processes operation, and when strict control is required in fields such as food technology, the pharmaceutical ... -
Dynamic Analysis of Energy Recovery Utilizing Thermal Storage from Batch-Wise Metal Casting
(Science et technique du froid;2020-1, Chapter; Peer reviewed, 2020)The thermal exergy contained in the liquid metal in ferroalloy production makes it an interesting source for energy recovery. The heat released during casting is rarely utilized today. This work investigates the feasibility ...