Browsing Institutt for energi og prosessteknikk by Title
Now showing items 1755-1774 of 4145
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Gas Turbine Performance Deterioration
(Master thesis, 2010)IToday, gas turbines are generally used to produce electricity and drive natural gas compressors on offshore installations. The performance of gas turbines is reduced gradually, and this lead to reduced production capacity ... -
Gas-side fouling of heat exchanger surfaces
(Master thesis, 2017)Fouling is an unpleasant and unavoidable occurrence in heat exchangers that decreases the performance of the heat exchanger. Fouling reduces the overall efficiency of a system and can lead to equipment failure. Understanding ... -
Gasification of Biomass for Second Generation Biofuel Production
(Doctoral thesis at NTNU;2015:77, Doctoral thesis, 2015)Gasification of biomass is perceived as one of the most attractive thermochemical processes to produce carbon neutral syngas that can be burned to release energy or used as the building blocks for the production of ... -
Gasification of High Heating-rate Biomass-derived Chars at Elevated Temperatures
(Journal article; Peer reviewed, 2017)In this study, gasification behavior of high heating-rate chars were investigated using an entrained flow reactor with an optical particle-sizing pyrometer. Two biomass chars produced from forest residue and torrefied ... -
Gass/væskeseparasjon i LNG-anlegg
(Master thesis, 2008)Oppgaven evaluerer separasjonsutstyr som benyttes i Hammerfest LNG-anlegg med hovdefokus på virkemåte og separasjonseffektivitet. Driftsdata fra høsten 2007/våren 2008 sammenlignes med designdata og uregulær drift kartlegges. ... -
Gasskraftverk med CO2-håndtering - Studie av alternative teknologier
(Research report, 2002)Rapporten dokumenterer en studie som beskriver og sammenligner 12 ulike teknologier for gasskraftverk med CO2-håndtering. Merkostnaden for å fjerne CO2 i forbindelse med elektrisitetproduksjon er i studien beregnet til ... -
Gassrensing og varmegjennvinning i ferrolegeringsindustrien
(Master thesis, 2007)Produksjon av ferrolegeringer foregår ved høye temperaturer, og store mengder støv dannes i prosessen. Denne oppgaven gir en generell oversikt over ferrolegeringsindustrien, med fokus på hvordan støvpartiklene kan fjernes ... -
General bulk-viscous solutions and estimates of bulk viscosity in the cosmic fluid
(Journal article; Peer reviewed, 2016)We derive a general formalism for bulk viscous solutions of the energy-conservation equation for ρ(a,ζ) ρ(a,ζ) , both for a single-component and a multicomponent fluid in the Friedmann universe. For our purposes, these ... -
A general framework for stock dynamics of populations and built and natural environments
(Peer reviewed; Journal article, 2021)Sustainable development involves a responsible management of the interactions between humans and their built and natural environment. From a physical perspective, the interactions can be characterized as stocks and flows ... -
General heat transfer correlations for supercritical carbon dioxide heated in vertical tubes for upward and downward flows
(Peer reviewed; Journal article, 2022)Supercritical CO2 is a promising working fluid for many industrial applications. To improve the performances of relevant components and systems, the prediction of the heat transfer of supercritical CO2 is an important ... -
Generalised Eddy Dissipation Concept for MILD combustion regime at low local Reynolds and Damköhler numbers. Part 2: Validation of the model
(Peer reviewed; Journal article, 2020)The generalised Eddy Dissipation Concept (EDC) developed in the first part of this article is thoroughly validated against twelve flames from the Delft and Adelaide jet-in-hot-coflow (JHC) burners. These flames emulate ... -
Generating environmental sampling and testing data for micro- and nanoplastics for use in life cycle impact assessment
(Peer reviewed; Journal article, 2022)Ongoing efforts focus on quantifying plastic pollution and describing and estimating the related magnitude of exposure and impacts on human and environmental health. Data gathered during such work usually follows a receptor ... -
Geo-referenced building stock analysis as a basis for local-level energy and climate mitigation strategies
(Peer reviewed; Journal article, 2022)A geo-referenced building stock model was used to analyse the energy and climate performance of the Knowledge Axis in Trondheim, Norway, by 2050. Strategies for energy upgrades, construction of more energy-efficient new ... -
Geometrical flexibility of platinum nanoclusters: impacts on catalytic decomposition of ethylene glycol
(Journal article; Peer reviewed, 2017)Catalytic decomposition of ethylene glycol on the Pt13 cluster was studied as a model system for hydrogen production from a lignocellulosic material. Ethylene glycol was chosen as a starting material because of two reasons, ... -
Geophysical electromagnetic modeling and evaluation: A review
(Peer reviewed; Journal article, 2021)Electromagnetic forward modeling is the cornerstone of geophysical electromagnetic inversion. During the last 50 years, numerical simulation methods have been rapidly developed and widely used in geophysical area as the ... -
Geophysical Field Data Interpolation Using Stochastic Partial Differential Equations for Gold Exploration in Dayaoshan, Guangxi, China
(Journal article; Peer reviewed, 2019)In a geophysical survey, one of the main challenges is to estimate the physical parameter using limited geophysical field data with noise. Geophysical datasets are measured with sparse sampling in a survey. However, the ... -
Geothermal Energy at Oslo Airport Gardermoen
(Master thesis, 2012)Rock Energy is a Norwegian company with a patented solution for drilling deep geothermal wells, for exploitation of deep geothermal energy from Hot Dry Rocks. The concept involves a drilled sub-surface heat exchanger, ... -
Geothermal energy: Model development and analysis of a pilot project
(Master thesis, 2016)The objective of this study is to develop a calculation method taking into account the thermal interaction between several deep boreholes. Based on a literature study on heat transfer models, a hybrid model combining an ... -
Getting jammed in all directions: Dynamic shear jamming around a cylinder towed through a dense suspension
(Peer reviewed; Journal article, 2021)Experimental results of towing a cylinder through a dense suspension of cornstarch and sucrose-water are presented. Focus is placed on the jamming fronts that exist in such systems. The literature has concentrated on the ... -
Getting the ducks in a row
(Peer reviewed; Journal article, 2021)Vessels – in the widest sense – travelling on a water surface continuously do work the water surrounding it, causing energy to be radiated in the form of surface waves. The concomitant resistance force, the wave resistance, ...