Blar i NTNU Open på forfatter "Johannessen, Eivind"
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Dehydration and Compression of Contaminated CO2-rich Gas
Graff, Vidar (Master thesis, 2011)The use and demand of energy by exploiting fossil fuels is increasing. Carbon Capture and Storage (CCS) may be the solution to achieve decreased emissions, from various emitters of climate gases such as carbon dioxide. By ... -
Energy efficient design of membrane processes by use of entropy production minimization
Magnanelli, Elisa; Wilhelmsen, Øivind; Johannessen, Eivind; Kjelstrup, Signe (Journal article; Peer reviewed, 2018)To minimize entropy production means to reduce the lost work in a process, and to optimize the use of energy resources. Due to the need for re-compression, membrane units for separation of CO2 from natural gas require large ... -
Entropy Production Minimization as Design Principle for Membrane Systems: Comparing Equipartition Results to Numerical Optima
Magnanelli, Elisa; Johannessen, Eivind; Kjelstrup, Signe (Journal article; Peer reviewed, 2017)Entropy production minimization procedures presented in literature show that under different assumptions the optimal solution might be characterized by different thermodynamic quantities being constant. These constant ... -
Evaluation of new ideas for offshore oil and gas processing - Evaluering av nye ideer for offshore olje- og gassprosessering
Holm, Karl Martin (Master thesis, 2017)Water removal is one of the most important factors for safe transport of rich gas through pipelines. Water dew-point specifications at the Norwegian Continental Shelf are set to a temperature of -18°C at 69 barg by Gassco ... -
Rate based modelling of CO2 removal using alkanolamines
Liu, Xixi (Master thesis, 2014)CO2 is a major acid gas that is required to be removed from natural gas, in order to meet transportation specification. Chemical absorption using amine-based absorbents is a mature and well-known separation process applied ... -
Understanding and Reducing the Entropy Production in Membrane Systems From Gas Separation to Natural Systems
Magnanelli, Elisa (Doctoral theses at NTNU, 2017:97;, Doctoral thesis, 2017)The purpose of this thesis was to understand how energy is dissipated in various systems, in order to find general rules that can help increasing the energy efficiency of such systems.We mainly focused on membranes for ... -
Volatile Organic Components Adsorption on Activated Carbon
Eroshkin, Sviatoslav (Master thesis, 2022)Some volatile organic components may cause serious human health and environmental threats. These components are "global warming agents" that contribute to climate change. While the negative impact of methane and carbon ...