Blar i NTNU Open på forfatter "Skreiberg, Øyvind"
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Numerical simulations of staged biomass grate fired combustion with an emphasis on NOx emissions
Bugge, Mette; Skreiberg, Øyvind; Haugen, Nils Erland L; Carlsson, Per; Houshfar, Ehsan; Løvås, Terese (Peer reviewed; Journal article, 2015)In the present paper NOx emissions from biomass combustion was studied, with the objective to demonstrate the applicability of stationary computational fluid dynamics simulations, including a detailed representation of the ... -
On the proper integration of wood stoves in passive houses under cold climates
Georges, Laurent; Skreiberg, Øyvind; Novakovic, Vojislav (Journal article; Peer reviewed, 2014)The space-heating (SH) of residential buildings using a wood stove is an attractive solution. The way to properly integrate stoves in passive houses (PH) is still in question: current nominal powers are generally oversized ... -
On the proper integration of wood stoves in passive houses: investigation using detailed dynamic simulations
Georges, Laurent; Skreiberg, Øyvind; Novakovic, Vojislav (Journal article; Peer reviewed, 2013)Wood stoves are attractive for the space-heating (SH) of passive houses. Nevertheless, there are still questions about their integration. Firstly, the power oversizing of the current stoves and their long operating time ... -
Parametric Energy Simulations of a Nordic Detached House Heated by a Wood Stove
Thalfeldt, Martin; Skare, Anders B.; Georges, Laurent; Skreiberg, Øyvind (Peer reviewed; Journal article, 2020)Wood stoves are widely used in Nordic countries. They offer a good opportunity to use biomass for space-heating and to reduce the peak power of all-electric buildings. However, wood stoves are highly concentrated heat ... -
Phase change materials for thermal energy storage in low- and high-temperature applications: a state-of-the-art
Sevault, Alexis; Kauko, Hanne; Bugge, Mette; Banasiak, Krzysztof; Haugen, Nils Erland L; Skreiberg, Øyvind (Research report, 2017) -
Pyrolysis of Untreated and Various Torrefied Stem Wood, Stump, and Bark of Norway Spruce
Barta-Rajnai, Eszter; Sebestyén, Zoltán; Jakab, Emma; Patus, Eszter; Bozi, Janos; Wang, Liang; Skreiberg, Øyvind; Grønli, Morten; Khalil, Roger Antoine; Czégény, Zsuzsanna (Journal article; Peer reviewed, 2019)The effect of torrefaction severity (temperature and residence time) was studied on the thermal decomposition of different parts of Norway spruce (stem wood, stump, and bark). The volatile content of the torrefied samples ... -
Simple Modelling Procedure for the Indoor Thermal Environment of Highly Insulated Buildings Heated by Wood Stoves
Georges, Laurent; Skreiberg, Øyvind (Journal article; Peer reviewed, 2016)Space heating using wood stoves is a popular solution in many European countries. The nominal power of the state-of-the-art stoves is oversized compared to the needs of highly insulated buildings, leading to a risk of ... -
Simultaneously boosting the mass and fixed-carbon yields of charcoal from forest residue via atmospheric carbonization
Tran, Khanh-Quang; Alonso, Maria Zabalo; Wang, Liang; Skreiberg, Øyvind (Journal article; Peer reviewed, 2017)The carbonization of various forest residues in comparison with their stem wood was studied by means of thermogravimetric analyzer operated non-isothermally at atmospheric pressure with a heating rate of 10K/min and a final ... -
Skeletal mechanisms for prediction of NOx emission in solid fuel combustion
Li, Tian; Skreiberg, Øyvind; Løvås, Terese; Glarborg, Peter (Journal article; Peer reviewed, 2019)Emission of nitrogen oxides (NOx) is a major challenge for combustion of solid fuels. Strategies for emission control can be developed from computational fluid dynamics (CFD) simulation. This, furthermore, requires a ... -
Study of CO2 gasification reactivity of biocarbon produced at different conditions
Wang, Liang; Maziarka, Przemysław; Skreiberg, Øyvind; Løvås, Terese; Wadrzyk, Mariusz; Sevault, Alexis (Journal article; Peer reviewed, 2017)Biocarbon has a great potential to replace fossil reductants and help reduce greenhouse gas emissions from carbon intensive metallurgical industries. In this work, biocarbon samples were produced from Norway spruce under ... -
Techno-economic assessment of integrated hydrochar and high-grade activated carbon production for electricity generation and storage
Kempegowda, Rajesh Shivanahalli; Tran, Quang Khanh; Skreiberg, Øyvind (Journal article; Peer reviewed, 2017)This paper deals with process simulation and techno-economic assessment on a bioenergy system for sustainable electricity production from low-grade biomass resources such as forest and agricultural residues, which is ... -
Techno-economic assessment of thermal co-pretreatment and co-digestion of food wastes and sewage sludge for heat, power and biochar production
Kempegowda, Rajesh Shivanahalli; Skreiberg, Øyvind; Tran, Khanh-Quang; Selvam, P V Pannir (Journal article; Peer reviewed, 2017)This study deals with techno-economic assessments of three system scenarios combining various conversion technologies including co-digestion, hydro-methanation, syngas production and integration, thermodynamic and ... -
Termisk lagringssystem for vedovner
Haugen, Marie Seltveit (Master thesis, 2012)En ny generasjon vedovner tilpasset dagens nye boliger er under utvikling, og i den sammenheng skal vedovner med varmelagring vurderes. Varmelagring bidrar blant annet til en mer stabil varmeavgivelse fra vedovnen ved at ... -
The Process of Batch Combustion of Logs in Wood Stoves – Transient Modelling for Generation of Input to CFD Modelling of Stoves and Thermal Comfort Simulations
Skreiberg, Øyvind; Seljeskog, Morten; Georges, Laurent (Journal article; Peer reviewed, 2015)CFD modelling of wood stoves are a challenge due to the transient behavior of the combustion process, due to their batch combustion principle. Various initial and boundary conditions needs to be specified to carry out a ... -
The techno-economics of biocarbon production processes under Norwegian conditions
Olszewski, Maciej; Kempegowda, Rajesh Shivanahalli; Skreiberg, Øyvind; Wang, Liang; Løvås, Terese (Journal article; Peer reviewed, 2017)This work deals with techno-economic analysis studies in the context of production of various grade biocarbon for utilization as reducing agents in metallurgical industries. A detailed process design was developed for wood ... -
Thermal Decomposition Kinetics of Wood and Bark and their Torrefied Products
Barta-Rajnai, Eszter; Várhegyi, Gábor; Wang, Liang; Skreiberg, Øyvind; Grønli, Morten; Czégény, Zsuzsanna (Journal article; Peer reviewed, 2017)The pyrolysis kinetics of Norway spruce, its bark, and their torrefied products was studied. Thermogravimetry (TGA) was employed with linear and stepwise heating programs. Altogether 36 TGA experiments were evaluated ... -
Transient heat production and release profiles for wood stoves
Skreiberg, Øyvind; Georges, Laurent (Journal article; Peer reviewed, 2018)Combustion of wood logs in wood stoves and fireplaces occurs through a so-called batch combustion process, i.e. it is a highly transient process where most parameters change during the combustion cycle. This results in ... -
Validation of a method to select the optimal nominal power of a wood stove in residential buildings
Skare, Anders Bagøien (Master thesis, 2018)Wood stoves are prominent space heating strategies for detached residential buildings in European countries. However, there are no guidelines for selecting the correct wood-stove nominal power, based on building performance. ... -
Validation of a numerical approach for simulation of the thermal decomposition behaviour of biomass in grate combustion plants
Bugge, Mette; Haugen, Nils Erland L; Li, Tian; Zhang, Jingyuan; Skreiberg, Øyvind (Journal article; Peer reviewed, 2021) -
Validation of a transient zonal model to predict the detailed indoor thermal environment: case of electric radiators and wood stoves
Georges, Laurent; Thalfeldt, Martin; Skreiberg, Øyvind; Fornari, Walter (Journal article; Peer reviewed, 2019)In building performance simulation (BPS), zonal models are intermediate models between standard models assuming perfectly-mixed room air and Computational Fluid Dynamics (CFD): they aim to predict the air temperature and ...