Blar i Institutt for energi og prosessteknikk på tidsskrift "Energy Procedia"
Viser treff 1-20 av 70
-
1D modelling of membrane-assisted chemical looping reforming
(Journal article; Peer reviewed, 2017)Membrane-assisted chemical looping reforming (MA-CLR) has been proposed as an alternative to the conventional CLR technology. In this work, a non-isothermal 1D model is used to simulate the MA-CLR fuel reactor. The effect ... -
A Comparison of Post-combustion Capture Technologies for the NGCC
(Journal article; Peer reviewed, 2017)Four different post-combustion capture technologies are compared for the same NGCC (electric efficiency 58.1% without CO2 capture). The technologies are aqueous amine, polymeric membranes, a low temperature sorbent and ... -
A Hybrid Biomass Hydrothermal Gasification- Solid Oxide Fuel Cell System Combined with Improved CHP Plant for Sustainable Power Generation
(Journal article; Peer reviewed, 2017)The most popular technique, so far, for biomass waste to energy conversion has been incineration, but this technique has raised a lot of objection among nature activists due to the release of particulate matter and pollutants ... -
A kinetic study on simultaneously boosting the mass and fixed-carbon yield of charcoal production via atmospheric carbonization
(Journal article; Peer reviewed, 2017)The mass and fixed-carbon yield of charcoal produced from woody biomass via atmospheric carbonization can be simultaneously improved by harnessing the phenomenon of secondary char formation as a result of prolonged contact ... -
A state-of-art review of retrofit interventions in buildings towards nearly zero energy level
(Journal article; Peer reviewed, 2017)Unmistakably, buildings retrofitting brings the possibilities to reduce energy use and greenhouse gas emissions. However, selecting specific retrofit strategies is complex and requires careful planning. There are already ... -
Accurate measurements of CO2 rich mixture phase equilibria relevant for CCS transport and conditioning
(Journal article; Peer reviewed, 2013)This paper describes the experimental rig that has been constructed for the measurements of phase equilibrium of CO2-rich mixtures under relevant conditions for CCS transport and conditioning. The rig is believed to have ... -
Accurate phase equilibrium measurements of CO2 mixtures
(Journal article; Peer reviewed, 2014)A new setup for accurate measurement of phase behavior of CO2-rich mixtures relevant for CCS has been designed, covering a range between - 60 and 150 °C in temperature and 0.4 and 20 MPa in pressure. In order to design ... -
Acid Gas Removal in Geothermal Power Plant in Iceland
(Journal article; Peer reviewed, 2016-01)A large part of the energy covering the electricity and heating demands in Iceland is generated in geothermal power plants. The Hellisheiði power plant, designed for 300 MWe and 133 MWth, is located in close proximity to ... -
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 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 ... -
Analysis of Natural Gas engine de-loading on LNG fuelled vessels
(Journal article; Peer reviewed, 2015)Onboard the Norwegian Coast Guard vessel KV Bergen, as well as other LNG fuelled vessels, there has been reports of a sudden fall in the fuel tank system pressure, resulting in de-loading of the NG engines. This study ... -
Analysis of reduction of energy demands for Zero Emission Renovated Office Building by using thermal mass and ventilative cooling
(Journal article; Peer reviewed, 2017)Zero emission buildings (ZEB) are characterized by high levels of insulation and air tightness. Powerhouse Kjørbo is the first Zero Emission Renovated Office Building in Norway. In 2013-2014 the building from 1985 underwent ... -
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 ... -
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 ... -
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 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 ...