Blar i Institutt for energi og prosessteknikk på dokumenttype "Journal article"
Viser treff 81-100 av 1723
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An advancement in CO2 utilization through novel gas switching dry reforming
(Journal article; Peer reviewed, 2019)This study is the first experimental demonstration of CO2 capture and utilization for dry methane reforming using a novel chemical looping concept, “Gas Switching Dry Reforming” (GSDR) to produce syngas. The new reactor ... -
An Alternative Approach for the Estimation of Biochar Yields
(Journal article; Peer reviewed, 2018)In this study, a novel approach for the determination of the solid mass yield from slow pyrolysis based on a comparison of the volatile matter contents of feedstock and char is presented. The approach was tested with ... -
An assessment of the ability of computational fluid dynamic models to predict reactive gas-solid flows in a fluidized bed
(Journal article; Peer reviewed, 2012)Fine grid, two dimensional simulations of reactive gas–solid flows occurring in a fluidized bed reactor were carried out using the Eulerian multi-fluid kinetic theory of granular flow (KTGF) approach in the commercial flow ... -
An efficient approach for ship collision design of reinforced concrete pontoon walls
(Journal article; Peer reviewed, 2019)This paper presents an efficient method for collision design of prestressed concrete pontoon walls. High fidelity finite element models of a container ship bow and a prestressed concrete pontoon wall are first established. ... -
An Empirical Model of Aerodynamic Drag in Alpine Skiing
(Journal article; Peer reviewed, 2018)This paper describes an empirical model of aerodynamic drag for a range of body positions commonly used in alpine skiing. In order to calculate the drag coefficient (CD), a method for calculating the frontal area of an ... -
An evaluation of effects of fuel parameters and flue gas recirculation on NOx emissions through detailed chemical kinetics simulations
(Journal article; Peer reviewed, 2019)In this work the effects of fuel parameters and under grate flue gas recirculation (FGR) are investigated when applying staged air combustion of solid fuel for the purpose of NOx reduction. In addition to temperatures, ... -
An evaluation of effects of operational parameters on NOx emissions through detailed chemical kinetics simulations
(Journal article; Peer reviewed, 2019)NOx emissions from biomass and Municipal Solid Waste (MSW) combustion is a great concern. Technologies for reducing NOx emissions based on flue gas cleaning using e.g. Selective Non-Catalytic Reduction (SNCR) or Selective ... -
An Experimental Investigation of the Hydroynamic Damping of Vibrating Hydrofoils
(Journal article; Peer reviewed, 2019)As Francis turbines are chasing a higher efficiency, while trying to accommodate a wider load region, turbine blade fatigue is becoming a more pronounced problem. Details of the Fluid-Structure Interaction (FSI) between ... -
An experimental method for studying the discrete droplet impact phenomena in a flammable gas environment
(Journal article; Peer reviewed, 2010)To improve the initial design as well as to gain insight into operational issues of heat exchangers and other process equipment involving complex two-phase flow phenomena, one can choose to conduct full-scale ... -
An Extended Corresponding States Equation of State (EoS) for CCS Industry
(Journal article; Peer reviewed, 2015)For a good design of all the processes in Carbon Capture and Storage, the thermodynamics of the CO2 and CO2 mixtures should be accurately predicted. Among these mixtures are CO2-water systems that are very difficult to ... -
An Improved Method for Determining Near‐Surface Currents From Wave Dispersion Measurements
(Journal article; Peer reviewed, 2019)A new inversion method for determining near‐surface shear currents from a measured wave spectrum is introduced. The method is straightforward to implement and starts from the existing state‐of‐the‐art technique of assigning ... -
An Integrated Assessment of the Environmental and Economic Impact of Offshore Oil Platform Electrification
(Journal article; Peer reviewed, 2019)Electrification of offshore oil and gas installations on the Norwegian continental shelf is one of several options to decrease the CO2 emitted from these installations. However, there is an ongoing debate regarding how the ... -
An overall methodology to define reference values for building sustainability parameters
(Journal article; Peer reviewed, 2015)The paper presents a methodology to define reference values regarding building environmental impacts, energy outputs, and global costs. Four exemplary Italian residential categories were analyzed, focusing on the recent ... -
An SEM-EDX Study of Forest Residue Chars Produced at High Temperatures and High Heating Rate
(Journal article; Peer reviewed, 2015)This work investigated morphology, structure and chemical transformation of forest residue chars devolatilized in a drop tube reactor at high heating rates and high temperature conditions. Produced forest residue chars ... -
Analysing energy upgrading projects of single-family houses towards a Norwegian nZEB level
(Peer reviewed; Journal article, 2021)As the existing building stock is responsible for high energy use and greenhouse gas emissions, energy upgrading projects have been acknowledged as crucial for the energy performance improvement of existing buildings, as ... -
Analysis of a vertical flat heat pipe using potassium working fluid and a wick of compressed nickel foam
(Journal article; Peer reviewed, 2016)Heat at high temperatures, in this work 400–650 °C, can be recovered by use of cooling panels/heat pipes in the walls of aluminum electrolysis cells. For this application a flat vertical heat pipe for heat transfer from a ... -
Analysis of an integrated heating and cooling system for a building complex with focus on long–term thermal storage
(Journal article; Peer reviewed, 2018)Modern building complexes have simultaneous heating and cooling demands. Therefore, integrated energy systems with heat pumps and long-term thermal storage are a promising solution. An integrated heating and cooling system ... -
Analysis of Combined Cycle Power Plants with Chemical Looping Reforming of Natural Gas and Pre-Combustion CO2 Capture
(Journal article; Peer reviewed, 2018)In this paper, a gas-fired combined cycle power plant subjected to a pre-combustion CO2 capture method has been analysed under different design conditions and different heat integration options. The power plant configuration ... -
Analysis of Drag of Bristle Based on 2-D Staggered Tube Bank
(Peer reviewed; Journal article, 2020)In this paper, a 2-D staggered tube bank of bristle pack is established to examine the effect of flow on bristle pack, and Gambit is used to generate the mesh. The Resistance of the bristle in the transient condition is ... -
Analysis of electricity use and economic impacts for buildings with electric heating under lockdown conditions: examples for educational buildings and residential buildings in Norway
(Peer reviewed; Journal article, 2021)The COVID-19 pandemic has caused significant impacts on energy demand in Norway and many countries. It is important to improve the existing knowledge of building operation under unforeseeable disturbances. This study aimed ...