Blar i Institutt for prosess-, energi- og miljøteknologi på tittel
Viser treff 311-330 av 333
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Techno-economic study of the CCMS Technology for CO2 capture from ferro-silicon production
(Journal article; Peer reviewed, 2019)Carbon Capture in Molten Salts (CCMS) is a method for capturing CO2 from a variety of flue gases related to power generation and energy intensive industry processes. The chemical principles are similar to those of the ... -
Technoeconomic evaluation of combined rich and lean vapour compression configuration for CO2 capture from a cement plant
(Peer reviewed; Journal article, 2023)A combined rich and lean vapour compression configuration was investigated for CO2 capture from a cement plant. This was to assess its performance in energy consumption, actual CO2 emission reduction, and cost reduction ... -
Temperature control of a pilot anaerobic digestion reactor
(Journal article; Peer reviewed, 2013)Results of analysis and design and implementation of a temperature control system for a practical pilot anaerobic digestion (AD) bioreactor fed with dairy waste are presented. A dynamic model of the reactor temperature is ... -
Temperature Effects in Anaerobic Digestion Modeling
(Conference object; Peer reviewed, 2015-11-25)Temperature effects on kinetic coefficients for the biochemical processes particle disintegration, hydrolysis and substrate uptake reactions were included in the anaerobic digestion model 1 (ADM1). It was evaluated on data ... -
The effect of alternative fuel combustion in the cement kiln main burner on production capacity and improvement with oxygen enrichment.
(Journal article; Peer reviewed, 2013)A mathematical model based on a mass and energy balance for the combustion in a cement rotary kiln was developed. The model was used to investigate the impact of replacing about 45 % of the primary coal energy by different ... -
The impact of staged combustion on the operation of a precalciner cement kiln
(Doctoral theses at NTNU;1999:89, Doctoral thesis; Peer reviewed, 1999)In this thesis, the impact of staged combustion on the operation of a precalciner cement kiln, is considered. Mathematical modelling and full-scale experiments at the Norcem cement works in Brevik, Norway, is the basis for ... -
The influence of the experimental span of Time-resolved X-ray tomography on dynamic parameters in a fluidized bed
(Journal article; Peer reviewed, 2011)Fluidized beds have presented some problems to experimentalists in the past due to their opaque nature [1]. This problem has however been overcome by non-intrusive nor invasive measurement techniques. X-rays or Gamma rays ... -
The Influence of the Physical Characteristics of Particulate Materials on their Conveyability in Pneumatic Transport Systems
(Doctoral thesis; Peer reviewed, 1996-12)The aim of the investigation has been to establish a link between the physical characteristics of particulate materials, measurable on small samples in a laboratory, and the conveyability of these materials in a pneumatic ... -
The Role of Solvent Polarity on Low-Temperature Methanol Synthesis Catalyzed by Cu Nanoparticles
(Journal article; Peer reviewed, 2017)Methanol syntheses at low temperature in a liquid medium present an opportunity for full syngas conversion per pass. The aim of this work was to study the role of solvents polarity on low-temperature methanol synthesis ... -
Thermal Design of Future Medium Voltage Switchgear
(Conference object; Peer reviewed, 2015)Air is a desirable alternative to SF6 in medium voltage (MV) switchgear. However, the thermal properties of air is poorer compared with SF6, and this paper presents a first step in the process of finding an optimized thermal ... -
Thermophilic methane production from hydrothermally pretreated norway spruce (Picea abies)
(Peer reviewed; Journal article, 2020)Norway spruce (Picea abies) is an industrially important softwood species available in northern Europe and can be used to produce bio-methane after proper pretreatment to overcome its recalcitrant complex structure. Hot ... -
Treatment of Metformin-Containing Wastewater by a Hybrid Vertical Anaerobic Biofilm-Reactor (HyVAB)
(Peer reviewed; Journal article, 2019)Several series of batch and continuous experiments were performed to investigate the removal of metformin and other contaminants from two wastewaters: wastewater I (WWI) containing 4 mg/L metformin and wastewater II (WWII) ... -
Ultrasound intensified CO2 desorption from pressurized loaded monoethanolamine solutions. I. parameters investigation and modelling
(Journal article; Peer reviewed, 2018)CO2 stripping from loaded monoethanolamine (MEA) aqueous solutions intensified by means of ultrasound was investigated in a lab-scale kettle reboiler with both gas and liquid continuous operations. The reboiler operating ... -
Ultrasound intensify CO2 desorption from pressurized loaded monoethanolamine solutions. II. Optimization and cost estimation
(Journal article; Peer reviewed, 2019)Optimization and cost estimation were performed for the use of ultrasound for intensifying CO2 reboiler stripping from lean monoethanolamine (MEA) aqueous solutions at 1.0 barg. This work was based on typical industrial ... -
Use of recycled materials as mid layer in three layered structures-new possibility in design for recycling
(Peer reviewed; Journal article, 2020)Challenges of using recycled polymer materials in food packaging are related both to the properties of the material and demanding safety issues for food contact materials. The aim of this research was to detect possible ... -
Using Image Processing for Flame Diagnostics
(Journal article; Peer reviewed, 2017)An image processing routine was developed to determine the flame height of a hydrogen jet flame. Two different techniques was tested, where one where based on Wiens distribution of a black body and one based on intensity ... -
Using the quantum yields of photosystem II and the rate of net photosynthesis to monitor high irradiance and temperature stress in Chrysanthemum (Dendranthema grandiflora)
(Journal article; Peer reviewed, 2015)Under a dynamic greenhouse climate control regime, temperature is adjusted to optimise plant physiological responses to prevailing irradiance levels; thus, both temperature and irradiance are used by the plant to maximise ... -
Validation of results from Barracuda® CFD modelling to predict the minimum fluidization velocity and the pressure drop of Geldart A particles
(Journal article; Peer reviewed, 2017)Fluidization characteristics such as the minimum fluidization velocity and the bed pressure drop are important for the design of an efficient fluidized bed. These characteristics can be measured experimentally, but also ... -
Velocity and turbulence measurements of oil-water flow in horizontal and slightly inclined pipes using PIV
(Chapter; Peer reviewed, 2009)Oil-water flows in horizontal and slightly inclined pipes are investigated using Particle Image Velocimetry (PIV). PIV offers a powerful non-invasive tool to study such flow fields. The experiments are conducted in a 15 m ... -
Waste heat availability in the raw meal department of a cement plant
(Journal article; Peer reviewed, 2017)