Browsing Institutt for energi og prosessteknikk by Title
Now showing items 3840-3859 of 4147
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Trade linked global aluminium cycle - An overview of supply chain and expansion of model to differentiate beverage can cycle
(Master thesis, 2017)Since the advent of industrialization, humans have been exploiting natural resources more than ever. Extracting oil, wood, minerals, ores and other materials from lithosphere, there has been a massive change in peoples ... -
Trading-off ecosystem services for better ecological restoration: A case study in the Loess Plateau of China
(Journal article, 2020)Balancing trade-off between multiple ecosystem services (ESs) is critical for restored ecosystem, including in the Loess Plateau of China where ESs are undergoing significant changes. In this study, the ESs were quantified ... -
Trailing edge vortex shedding in hydraulic turbines and the effect of stream-wise vorticity on vortex induced vibrations
(Doctoral theses at NTNU;2021:42, Doctoral thesis, 2021)Experiments as well as some numerical simulations were conducted investigating the resonance region of vortex induced vibrations for different trailing edges of a hydrofoil in channel flow. The study focuses on the ... -
Trans-arctic re-routing of container vessels using the MariTEAM model: A comparative analysis of short- and long-term climate change impacts
(Master thesis, 2022)Maritim skipsfart står for 80 % av verdenshandelen i volum, og ettersom etterspørselen forventes å øke, vil også eksosutslippene knyttet til fartøysaktivitet øke. Arktis varmes opp dobbelt så raskt som det globale ... -
Transcritical R744 refrigeration systems for supermarket applications: Current status and future perspectives
(Journal article; Peer reviewed, 2018)Visible signs of climate change call for urgent actions on food retail industry, since such a sector is characterized by an abundant carbon footprint. Being CO2 (or R744) recognised across the world as the most promising ... -
Transforming Our World: Interdisciplinary Insights on the Sustainable Development Goals
(Research report, 2023) -
Transient analysis of wet gas compression systems
(Doctoral theses at NTNU;2019:159, Doctoral thesis, 2019)The demand for oil and gas remains high, and changing market conditions require innovative solutions. Development of compression technology tailored for subsea oil and gas production can contribute significantly to ... -
Transient CFD-analysis of a high head Francis turbine
(Master thesis, 2014)The purpose of the present work has been to investigate how well transformation methods work as a method to get realistic inlet boundary conditions to a draft tube without using excessive amounts of computational resources. ... -
Transient Compressor System Analysis
(Master thesis, 2019)Det pågåande arbeidet mot ein meir kostnadseffektiv og miljøvennleg olje- og gassindustri har ført til visjonen om undervassfabrikkar og utviklinga av våtgass kompressorsystem. Erfaringa med slike typar system er fortsatt ... -
Transient dynamikk i gasstransport
(Master thesis, 2011)Beregningsmodeller som i dag brukes til prediksjon og overvåkning av gasstransport, er stort sett basert på 1 dimensjonale betraktninger. Friksjonsfaktoren som brukes i disse modellene er gjerne av typen Colebrook-White, ... -
Transient Flow in Gas Transport
(Master thesis, 2011)Transport of natural gas to continental Europe and UK is a large portion ofNorwegian petroleum industry. The gas is mainly transported undersea inlarge-scale transport pipelines. Amount of transported gas is currently ... -
Transient friction in pressurized pipes; the water hammer phenomenon
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:135, Doctoral thesis, 2010)The friction in non-stationary flow is an intriguing and interesting phenomenon. Many types of non-stationary flow exist, and the friction involved in these flows is in many cases significantly different from the steady ... -
Transient heat production and release profiles for wood stoves
(Journal article; Peer reviewed, 2018)Combustion of wood logs in wood stoves and fireplaces occurs through a so-called batch combustion process, i.e. it is a highly transient process where most parameters change during the combustion cycle. This results in ... -
Transient Heat Transfer in Boreholes with Application to Non-Grouted Borehole Heat Exchangers and Closed Loop Engineered Geothermal Systems
(Doctoral thesis at NTNU;2016:76, Doctoral thesis, 2016)This thesis concerns heat transfer processes in single boreholes and systems of boreholes. The thesis is divided in two parts of which the first considers borehole heat exchangers (shallow geothermal energy), and the ... -
Transient LDV-measurements in the draft tube of a high head Francis turbine
(Master thesis, 2014)Francis-99 is a series of upcoming workshops aimed at determining the state of the art of high head Francis turbine simulations. The scope of this essay is to provide empirical data to serve as validation for the CFD ... -
Transient Modelling of Hydropower Plants
(Master thesis, 2016)Any changes of the volume flow through a turbine gives acceleration or deceleration of the masses of water in the penstock. This induces dynamic pressure changes in front of the turbine. A pressure transient must be ... -
Transient performance of combined cycle power plant with absorption based post-combustion CO2 capture: dynamic simulations and pilot plant testing
(Doctoral theses at NTNU;2018:168, Doctoral thesis, 2018)The thesis presents transient performance analysis of chemical absorption processes for reducing CO2 emissions from natural gas combined cycle power plants (NGCCs), which can contribute to reduce greenhouse gas emissions ... -
Transient Thermo-Acoustic Responses of Methane/Hydrogen Flames in a Pressurized Annular Combustor
(Peer reviewed; Journal article, 2022)The present article experimentally investigates the triggering and transient growth of azimuthal instabilities in a pressurized laboratory-scale annular combustor featuring 12 methane/hydrogen flames, as the equivalence ... -
Transient wave resistance upon a real shear current
(Journal article; Peer reviewed, 2018)We study the waves and wave-making forces acting on ships travelling on currents which vary as a function of depth. Our concern is realism; we consider a real current profile from the Columbia River, and model ships with ... -
Transiente olje-vann strømningsforsøk
(Master thesis, 2009)Denne masteoppgaven er i all hovedsak rettet mot å ekstrahere eksperimentelle data på olje-vann flushing, begge i væskefase. Det vil også gjøres en evaluering på hvor godt flerfasesimulatoren OLGA 6.0 klarer å reprodusere ...