Blar i Institutt for energi og prosessteknikk på tittel
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Overview of recent progress towards in-situ biogas upgradation techniques
(Journal article; Peer reviewed, 2018)Biogas, as derived from the anaerobic digestion process, offers a versatile possibility of renewable and sustainable energy usage. When enriched, upgraded biogas can yield high levels of biomethane, allowing its use as an ... -
Overview of the development and status of carbon dioxide (R-744) refrigeration systems onboard fishing vessels
(Peer reviewed; Journal article, 2022)Globally, most fishing vessels still use the ozone-depleting and climate-harmful R-22 in their freezing and refrigerated seawater (RSW) systems. However, in some regions, the natural refrigerant ammonia is the preferred ... -
Overview on Pressure Swing Adsorption (PSA) as CO2 Capture Technology: State-of-the-Art, Limits and Potentials
(Journal article; Peer reviewed, 2017)This paper provides an insight on state-of-the-art, limits and potentials of pressure swing adsorption (PSA) as CO2 capture technology into power plants. To get a complete picture both post- and pre-combustion cases are ... -
Oxidation and Fume Formation from Liquid Silicomanganese Alloys Exposed to Atmospheres Containing Moisture
(Peer reviewed; Journal article, 2022)In industrial applications and laboratory studies, it has been shown that the use of water spray may significantly reduce the amount of fume generated from the oxidation process of liquid high carbon ferromanganese alloy. ... -
Oxy-combustion coal based power plants with CO2 capture: Process integration approach to reduce capture penalty
(Doctoral thesis at NTNU;2015:34, Doctoral thesis, 2015)This thesis presents studies on coal based power plants with CO2 capture. As coal is the single largest fuel in use today to generate electricity, technologies to improve the efficiency and reduce emissions are critical ... -
Oxy-combustion coal based power plants: study of operating pressure, oxygen purity and downstream purification parameters
(Journal article; Peer reviewed, 2014)Oxy-combustion coal based power plants are considered one of the cost effective ways to produce CO2 emission free electricity. Recovery of compression heat and the latent heat from the flue gases can further improve the ... -
Parallel Work of CO2 Ejectors Installed in a Multi-Ejector Module of Refrigeration System
(Journal article; Peer reviewed, 2016)A performance analysis on of fixed ejectors installed in a multi-ejector module in a CO2 refrigeration system is presented in this study. The serial and the parallel work of four fixed-geometry units that compose the ... -
Parameter based tool for Francis turbine guide vanes design using coupled MATLAB-ANSYS approach
(Peer reviewed; Journal article, 2022)The complex geometry of Francis turbine components can be defined parametrically so that automatic optimization techniques based on parametrization can be used. This is convenient for a hydraulic redesign of individual ... -
Parameter study of electric power production in wind farms - experiments using two model scale wind turbines
(Master thesis, 2015)Wind farms are widely developed even if several unsolved problems need to be faced. The rotor-wake interaction involves different physical phenomena, not yet fully understood, directly affecting the overall wind farm power ... -
Parameter study of electric power production in wind farms - experiments using two model scale wind turbines
(Master thesis, 2014)A parameter study investigating the effects of adjusting tip speed ratios (TSR) and turbine distance in a model scale wind farm was conducted in the wind tunnel facility at NTNU. The aim was to identify optimal turbine ... -
Parameter study of electric power production in wind farms - experiments using two model scale wind turbines
(Master thesis, 2015)Wind farms are widely developed even if several unsolved problems need to be faced. The rotor wake interaction involves different physical phenomena, not yet fully understood, directly affecting the overall wind farm power ... -
Parameter study of electric power production in wind farms - experiments using two model scale wind turbines
(Master thesis, 2014)During the last years the growing amount of a wind turbines was observed, but limited area requires to build them closer to each other or group them in clusters called wind farms. Interactions between the turbines have ... -
Parameter study of power production in wind farms - experimental investigation of interaction of two wind turbines in tandem array
(Master thesis, 2015)The main goal of this experimental study was to find criteria for optimum total power productions of a tandem array of turbines in a "small" wind farm. Experiment included testing of two models of wind turbines (HAWT) in ... -
Parameters relevance in data-driven models for building energy prediction
(Master thesis, 2021)Bygninger står for 40 % av verdens energiforbruk, og 36 % av drivhus gassene. En stor andel av denne energien er knyttet til bygninger, mer spesifikt, systemer for varme, ventilasjon, og kjøling (HVAC). Intelligente systemer, ... -
Parametric Energy Simulations of a Nordic Detached House Heated by a Wood Stove
(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 ... -
Parametric LCA Modelling of Battery Materials - The case of Graphene
(Master thesis, 2021)I dag blir det gjort betydelige investeringer i nye batteriteknologier med fokus på fornybar energi. Foreløpig er Li-S batterier ansett som den mest lovende etterfølgeren for Li-ion, da disse representerer flere fordeler. ... -
Parametric Life Cycle Modelling of Nickel Sulphate
(Master thesis, 2021)Constant growth of population is raising the energy demand as well as the environmental impacts and emissions from the use of this energy. To reduce these impacts and emissions, and to conform to the international ... -
Parametric Optimization of a Power and Biomass to Liquid Process
(Chapter, 2019)In this study, a power & biomass to liquid process (PBtL) is optimized with respect to nine continuous design variables. These variables have great impact on the profitability of the process. A detailed process model is ... -
Parametric study of condensation at heating, ventilation, and air-conditioning duct's external surface
(Journal article; Peer reviewed, 2018)The compression of insulation causes around a heating, ventilation, and air-conditioning duct usually resulted in dew formation around the outer surfaces because of low temperature, which causes significant energy and ...