Browsing Fakultet for ingeniørvitenskap (IV) by Journals "Energy Procedia"
Now showing items 21-40 of 131
-
Applicability and validation of use of equilibrium-based absorber models with reduced stage efficiency for dynamic simulation of post-combustion CO2 capture processes
(Journal article; Peer reviewed, 2017)Use of complex rate-based models for absorbers in a post-combustion CO2 capture process may lead to high computational complexity and simulation time. Method using reduced stage efficiency in equilibrium-based model for ... -
Assessment of the Dynamic Responses and Allowable Sea States for a Novel Offshore Wind Turbine Tower and Rotor Nacelle Assembly Installation Concept Based on the Inverted Pendulum Principle
(Journal article; Peer reviewed, 2016)This paper presents a numerical study for preliminary assessment of the dynamic responses and allowable sea states for the installation of an offshore wind turbine (OWT) tower and rotor nacelle assembly (RNA) based on a ... -
Biocarbonization process for high quality energy carriers: Techno-economics
(Journal article; Peer reviewed, 2017)This work deals with a process design and techno-economic analysis (TEA) of the enablement of biocarbonization processes for production of biocarbon, biocrude, biomethane, biofertilizer and heat. Three case scenarios are ... -
Biomass Charcoal Properties Changes during Storage
(Journal article; Peer reviewed, 2017)In this work, effects of storage time and conditions on the properties of one woody charcoal were studied. Prior to the storage test, the untreated charcoal was characterized by thermogravimetry/mass spectrometry (TG/MS). ... -
CCS on Offshore Oil and Gas Installation - Design of Post Combustion Capture System and Steam Cycle
(Journal article; Peer reviewed, 2017)Most of the released CO2 on offshore oil and gas installation originates from the gas turbines that power the installations. For certain offshore installations, CO2 capture and storage (CCS) could be an alternative to ... -
Climate Adaptation Framework for Moisture-resilient Buildings in Norway
(Journal article; Peer reviewed, 2017)In the next decades, buildings and infrastructure will be exposed to significantly different climatic strains than they are today. Still, building standards and design guidelines presuppose use of historic weather data. ... -
Climate adaptation of buildings through MOM- and upgrading - State of the art and research needs
(Journal article; Peer reviewed, 2017)This study presents an overview of research initiatives and projects addressing climate adaption in management operation and maintenance (MOM) and upgrade of existing buildings. The aim was to identify knowledge needs and ... -
CO2 Capture Processes: Novel Approach to Benchmarking and Evaluation of Improvement Potentials
(Journal article; Peer reviewed, 2013)A consistent and transparent benchmarking methodology is required for comparison and ranking of different technologies for CO2 capture, and also for evaluation of different means of integrating novel capture process units ... -
CO2 Gasification of Charcoals in the Context of Metallurgical Application
(Journal article; Peer reviewed, 2017)The CO2 gasification reactivity of Norwegian spruce charcoals from stem wood and its forest residue produced at different pressures was investigated in the present study. The gasification behavior was analyzed thermograv ... -
CO2 pipeline integrity: A coupled fluid-structure model using a reference equation of state for CO2
(Journal article; Peer reviewed, 2013)We present a coupled fluid-structure model to study crack propagation and crack arrest in pipelines. Numerical calculations of crack arrest, crack velocity and pressure profiles have been performed for steel pipes with an ... -
CO2 pipeline integrity: A new evaluation methodology
(Journal article; Peer reviewed, 2011)A coupled fluid-structure model for pipeline integrity simulations has been developed. The pipe material and fracture propagation have been modelled using the finite-element method with a local fracture criterion. The ... -
Comparison of numerical efficiency of the thermal and the kinetic rate drying model applied to a thermally thick wood particle
(Journal article; Peer reviewed, 2017)In this work, the drying and devolatilization of a thermally thick wood particle were modeled. The work was validated against experiments and good agreement was found. The work compared the numerical efficiency and accuracy ... -
Comparison of numerical response predictions for a bottom-fixed offshore wind turbine
(Journal article; Peer reviewed, 2017)Numerical simulations are widely used for response calculations on offshore wind turbines. Code-to-code comparisons are frequently used for verification of the codes, as full-scale measurements can be difficult to obtain. ... -
Constrained AVO for CO2 storage monitoring at Sleipner
(Journal article; Peer reviewed, 2017)A feasibility study of inverting for CO2 elastic properties using a model based AVO inversion is carried out. We use principal component analysis on a set of PP reflection coefficients to calculate an optimal basis function ... -
Convective Heat Transfer between Rooms in Nordic Passive Houses
(Journal article; Peer reviewed, 2015)In highly-insulated buildings such as passive houses, the space-heating distribution subsystem can be simplified by reducing the number of heat emitters. In this context, the bi-directional flow through open doorways is ... -
Correlation between Acceleration and Drivetrain Load Effects for Monopile Offshore Wind Turbines
(Journal article; Peer reviewed, 2016)This paper investigates the correlation between the tower-top axial acceleration and the load effects in drivetrain components in a monopile (bottom-fixed) offshore wind turbine. In designing offshore wind turbines, it is ... -
Coupled mooring systems for floating wind farms
(Journal article; Peer reviewed, 2015)In this paper it is investigated if, by coupling the catenary mooring systems of a number of turbines, the number of lines and anchors needed and subsequently the costs could be reduced and what kind of dynamic phenomena ... -
Design and Development of Solar Thermal Injera Baking: Steam Based Direct Baking
(Journal article; Peer reviewed, 2014)Ethiopia, the second most populated country in Africa, meets 96% of its energy need from bio-mass and majority of this energy goes entirely to Injera baking. Injera, a pan-cake like bread that is consumed by most of the ... -
Design and fatigue analysis of monopile foundations to support the DTU 10 MW offshore wind turbine
(Journal article; Peer reviewed, 2017)This study aims to investigate the challenges and feasibility of extending monopile technology for larger wind turbines and deeper water. Preliminary monopile designs to support the DTU 10 MW reference wind turbine were ... -
Design of Steam Cycles for Oxy-combustion Coal based Power Plants with Emphasis on Heat Integration
(Journal article; Peer reviewed, 2014)The Oxy-combustion method of CO2 capture is considered to have several advantages over other methods for CO2 capture from coal based power plants. The capture process is energy intensive and hence expensive. Heat integration ...