Blar i Institutt for prosess-, energi- og miljøteknologi på tittel
Viser treff 165-184 av 331
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Image Processing and Measurement of the Bubble Properties in a Bubbling Fluidized Bed Reactor
(Journal article; Peer reviewed, 2022)The efficiency of a fluidized bed reactor depends on the bed fluid dynamic behavior, which is significantly influenced by the bubble properties. This work investigates the bubble properties of a bubbling fluidized bed ... -
Impact of kiln thermal energy demand and false air on cement kiln flue gas CO2 capture
(Journal article; Peer reviewed, 2014)The present study is focused on the effect of the specific thermal energy demand and the false air factor on carbon capture applied to cement kiln exhaust gases. The carbon capture process model was developed and implemented ... -
Improved Models for Predicting Bubble Velocity, Bubble Frequency and Bed Expansion in a Bubbling Fluidized Bed
(Journal article; Peer reviewed, 2018)An efficient design and operational control of a fluidized bed reactor relies on accurate prediction of bubble properties. This paper employs measurement of bed void fraction in determining the bubble velocity in a given ... -
Improved multi-stage cross-flow fluidized bed classifier
(Peer reviewed; Journal article, 2019)In the present work, improvements to a novel fluidized bed solids classification system previously published by Jayarathna et al. are discussed (Jayarathna et al., 2018 [1]). The system is designed for a high temperature ... -
Improving bench scale design for polymerisation of green CO2-polymers
(Journal article; Peer reviewed, 2018)Plastic has become the most common material since the beginning of the 20th century and has become almost indispensable due to its durability, light weight and low costs. However, some of the characteristics also make the ... -
Improving bench scale pilot reactor design for polymerisation of green CO2-polymers
(Journal article; Peer reviewed, 2018)Plastic has become the most common material since the beginning of the 20th century and has become almost indispensable due to its durability, light weight and low costs. However, some of the characteristics also make the ... -
Improving gas distribution and evaporation in gas cooling tower at Norcem Brevik
(Peer reviewed; Journal article, 2020)In this work, the effect of the geometry of a GCT (Gas Cooling Tower) on the flue gas distribution in a cooling tower in Norcem, Brevik is investigated by using CPFD (Computational Particle Fluid Dynamics) modeling and ... -
Increased Coal Replacement in a Cement Kiln Burner by Feeding a Mixture of Solid Hazardous Waste and Shredded Plastic Waste
(Journal article; Peer reviewed, 2013-07)The present study aims to find the maximum possible replacement of coal by combined feeding of plastic waste and solid hazardous waste mixed with wood chips (SHW) in rotary kiln burners used in cement kiln systems. The ... -
Industry/college cooperation on undergraduate project work as a college revenue source
(Conference report, 2007)Since 1994, the Norwegian Ministry for Education and Research has required government supported universities and colleges to find additional sources of income. For Telemark University College (TUC) in Porsgrunn, senior ... -
Influence of pKa on solvent performance of MAPA promoted tertiary amines
(Peer reviewed; Journal article, 2018)In the present work, absorption and desorption performance of ten single tertiary amines and their blends with MAPA was studied using a screening apparatus. Absorption experiments were conducted at 40 °C and up to 9.5 kPa ... -
Influences of temperature and substrate particle content on granular sludge bed anaerobic digestion
(Peer reviewed; Journal article, 2019)Influences of temperature (25–35 °C) and substrate particulate content (3.0–9.4 g total suspended solids (TSS)/L) on granular sludge bed anaerobic digestion (AD) were analyzed in lab-scale reactors using manure as a substrate ... -
Integrating Syngas Fermentation into a Single-Cell Microbial Electrosynthesis (MES) Reactor
(Peer reviewed; Journal article, 2020)This study presents a series of experiments to test the integration of syngas fermentation into a single-cell microbial electrosynthesis (MES) process. Minimal gas–liquid mass transfer is the primary bottleneck in such ... -
Intensifying rehabilitation of combined sewer systems using trenchless technology in combination with low impact development and green infrastructure
(Peer reviewed; Journal article, 2021)Throughout Europe, there is a considerable need for investment in the upgrade of sewer systems – due to three main factors: ageing infrastructure, climate change and urban population growth. The need for investments is ... -
Investigation into optimal CO2 concentration for CO2 capture from aluminium production
(Journal article; Peer reviewed, 2013-08-05)Capture of CO2 from aluminum production has been simulated using Aspen Plus and Aspen Hysys. The technology used for aluminum production is the Hall-Héroult and the current cell design necessitates that large amounts of ... -
Investigation of bubbling behavior in deep fluidized beds at different gas velocities using electrical capacitance tomography
(Peer reviewed; Journal article, 2019)Deep bubbling fluidized beds have some advantages that make them attractive for industrial applications. Using different powders, this paper investigates the bubbling behavior in deep beds. The results show that bubbles ... -
Investigation of flow behaviour in biomass gasifier using Electrical capacitance Tomography (ECT) and pressure sensors
(Conference object; Peer reviewed, 2011)The particles in a biomass gasifier are mainly a mixture of wood chips, char particles and bed material. The charwood particles have a significant lower density than the bed material, and also a wider range of particle ... -
Investigation of the segregation and mixing behavior of biomass in a bubbling fluidized bed reactor using a CPFD model
(Journal article; Peer reviewed, 2019)Segregation of biomass in a gasification reactor is an inevitable problem that can jeopardize the advantages such as uniform temperature control and proper mass circulation, and good solid-gas contacting area of the fluidized ... -
Investigation of the shifting-parameter as a function of density in the fluidization of a packed bed
(Conference report, 2010)Accurate predictions of pressure drops in fluidized beds are of great importance in the industry. Up to date no satisfactory correlation exists to predict the pressure drop in a fluidized bed as the bed is traversing from ... -
Investigation of the shifting-parameter as a function of particle size distribution in a fluidized bed traversing from a fixed to fluidized bed
(Conference object; Peer reviewed, 2010)The particles in a biomass gasifier are mainly a mixture of wood chips, char particles and bed material. The charwood particles have a significant lower density than the bed material, and also a wider range of particle ... -
Investment cost estimates and investment decisions
(Journal article; Peer reviewed, 2002)When evaluating new investment projects, oil companies traditionally use the discounted cashflow method. This method requires expected cashflows in the numerator and a risk-adjusted required rate of return in the denominator ...