Blar i Institutt for prosess-, energi- og miljøteknologi på tittel
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Process Integration of Green Hydrogen: Decarbonization of Chemical Industries
(Peer reviewed; Journal article, 2020)Integrated water electrolysis is a core principle of new process configurations for decarbonized heavy industries. Water electrolysis generates H2 and O2 and involves an exchange of thermal energy. In this manuscript, we ... -
Process parameters affecting the sustainability of fermentative hydrogen production: A short review
(Journal article; Peer reviewed, 2011)Anaerobic fermentation is regarded as the least energy intensive method for H2 production. Extensive literature on experimental attempts to achieve the highest possible theoretical yield (e.g. 4 mol H2/mol glucose) is ... -
Process Simulation of Calcium Looping With Indirect Calciner Heat Transfer
(Conference object; Peer reviewed, 2015-11-25)In calcium looping (CL), calcium oxide (CaO) is used as a sorbent for carbon dioxide (CO2). The CO2 reacts with CaO to produce calcium carbonate (CaCO3) in a carbonator operating at about 650 °C. The CaCO3 is then sent to ... -
Pyrolysis of plastic waste to environmental friendly products
(Journal article; Peer reviewed, 2020)Pyrolysis of plastics is one of the efficient ways to recover plastic waste. Pyrolysis refers to a thermal degradation of long-chain organic molecules into smaller hydrocarbons. Many ongoing research studies are trying to ... -
Quantification of biofilm accumulation by an optical approach
(Journal article; Peer reviewed, 2001-02)Methods for non-invasive, in situ, measurements of biofilm optical density and biofilm optical thickness were evaluated based on Pseudomonas aeruginosa experiments. Biofilm optical density, measured as intensity reduction ... -
Raman Spectroscopy as an Online Monitoring Tool for CO2 Capture Process: Demonstration Using a Laboratory Rig
(Journal article; Peer reviewed, 2017)A laboratory CO2 capture rig at USN was used as a demonstration plant to show the feasibility of Raman spectroscopy for online monitoring of speciation in CO2 capture process. The spectroscopy was integrated to lean and ... -
Re-initiation of detonation across an inert region
(Doktor ingeniøravhandling;374, Doctoral thesis, 1985)Re-initiation of gaseous C-J detonation waves across a region of air has been studied experimentally. The experimental apparatus consisted of a 9 meter long square tube with internal dimensions of 125 mm. The Random Choice ... -
A Real-Time Flow-Measuring Algorithm for Open Venturi Channel Non-Newtonian Flow
(Peer reviewed; Journal article, 2019)A real-time flow measuring algorithm is developed for the open Venturi channel non-Newtonian flow measurement. Using a single level sensor reading at downstream of the open Venturi channel, a drilling-well return flow rate ... -
Recruiting engineering students from vocational school
(Conference report, 2003)By the consent of the Norwegian Ministry of Education and Research, Telemark University College (TUe), Porsgrunn, Norway, this fall semester started a pilot class in electrical engineering recruiting solely from vocational ... -
Release of liquid CO2 from the bottom of a duct
(Peer reviewed; Journal article, 2023)This paper presents experimental results of the rapid phase transition of liquid CO2 released from the bottom of a small rectangular duct (BR). The aim is to consider the factors influencing the phase transitions and the ... -
Riemann solver for combustion waves
(Professional article, 2011-05-03) -
The sampling interface—A critical Theory of Sampling success factor in process sampling and PAT
(Journal article, 2022)In the process industry arena, analytical endeavors are today well served by the Process Analytical Technology (PAT) framework, offering a plentitude of on-line analytics, mostly spectroscopic: UV-VIS, NIR, RAMAN, NMR, ... -
A Scoping Review on Environmental, Economic, and Social Impacts of the Gasification Processes
(Peer reviewed; Journal article, 2022)In recent years, computer-based simulations have been used to enhance production processes, and sustainable industrial strategies are increasingly being considered in the manufacturing industry. In order to evaluate the ... -
Screening of Kinetic Rate Equations for Gasification Simulation Models (opptrykk)
(Journal article; Peer reviewed, 2018)The energy from biomass can be utilized through the thermochemical conversion process of pyrolysis and gasification. The process involves solid phase and fluid phase interactions. Computational Particle Fluid Dynamics ... -
Selection of packing materials for gas absorption
(Journal article; Peer reviewed, 2012)Carbon dioxide (CO2) capture is the most viable option to minimize the environmental impact by CO2 emissions. Amine scrubbing process is the well-known technology to achieve that. There are several packing types available ... -
Sensitivity Analysis and Anaerobic Digestion Modeling: A Scoping Review
(Peer reviewed; Journal article, 2022)A growing awareness of global climate change has led to an increased interest in investigating renewable energy sources, such as the anaerobic digestion of biomass. This process utilizes a wide range of microbial communities ... -
Sensitivity Analysis and Effect of Simulation parameters of CPFD Simulation in Fluidized Beds
(Journal article; Peer reviewed, 2018)Fluidized bed technology is broadly applied in industry due to its distinct advantages. CFD simulation of fluidized beds is still challenging compared to single-phase systems and needs extensive validation. Multiphase ... -
Sensitivity and Uncertainty Analysis in a Circulating Fluidized Bed Reactor Modeling
(Peer reviewed; Journal article, 2022)As in many real applications, in the world of fine powders and small particles, there are uncertainties and vagueness in the parameters such as particle size, sphericity, initial solid void fraction, envelope density, etc. ... -
Simple modelling approach using Modelica for microbial electrosynthesis
(Peer reviewed; Journal article, 2020)This study intends to develop a simple mathematical model that contributes to the integration of Microbial Electrosynthesis (MES) in AD to reduce CO2 to CH4. Open-source modelling language Modelica was used to build the ... -
Simulating CSF flow dynamics in the normal and chiari I subarachnoid space during rest and exertion
(Journal article; Peer reviewed, 2012)BACKGROUND AND PURPOSE: CSF fluid dynamics in healthy subjects and patients with Chiari I have been characterized during rest with phase-contrast MR imaging and CFD. CSF flow velocities and pressures in the nonresting state ...