Browsing Institutt for energi og prosessteknikk by Title
Now showing items 2151-2170 of 4164
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Investigation and implementation of turbulent wind in a specialized software tool for offshore wind turbines
(Master thesis, 2014)This thesis presents the theoretical models and standards behind the generation of turbu-lence in aeroelastic software. The required knowledge behind offshore wind have beeninvestigated and the necessary changes from onshore ... -
Investigation and validation of a Francis turbine at runaway operating conditions
(Journal article; Peer reviewed, 2016)Hydraulic turbines exhibit total load rejection during operation because of high fluctuations in the grid parameters. The generator reaches no-load instantly. Consequently, the turbine runner accelerates to high speed, ... -
Investigation into Structure and Behaviour of Laminar and Turbulent Flames by Planar Laser-Induced Fluorescence Measurements
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:148, Doctoral thesis, 2009) -
Investigation into the effect of simulating a 3D cylindrical fluidized bed reactor on a 2D plane
(Journal article; Peer reviewed, 2013)2D planar simulations of 3D cylindrical fluidized bed reactors are routinely carried out in order to reduce computational costs. The error involved in this simplification is largely unknown, however, and this study was ... -
Investigation of a Francis turbine during speed variation: Inception of cavitation
(Peer reviewed; Journal article, 2020)Variable-speed operation of a hydro turbine is considered as an alternative option to meet fluctuating energy demand as it allows high-ramping rate. Cavitation can be a limiting factor to utilize the variable-speed technology ... -
Investigation of a Francis turbine during start-stop
(Master thesis, 2022)En numerisk studie av en Francis-turbin under off-design drift har blitt utført for å undersøke bladbelastningen forårsaket av turbulensfenomener nært grensesnitt og trykkpulseringer. Målet med arbeidet var å identifisere ... -
Investigation of a high temperature cascade heat pump as an energy-efficient solution for generating process heat Cost and CO2 emission comparison to fuel-based heating technologies for the application case of a dairy.
(Master thesis, 2022)Att bekämpa klimatförändringar orsakade av människan är en av vår tids största utmaningar. En viktig del av strategin för att minska utsläppen är övergången från fossila bränslen till grön energi samt den övergripande ... -
Investigation of a hybrid compression absorption heat pump system for high temperatures
(Master thesis, 2017)The industrial sector is a large consumer of high temperature heat. Usually this heat is provided by resources that consume primary energy. At the same time there is a vast amount of low-grade surplus heat available that ... -
Investigation of a twisted-tube type shell-and-tube heat exchanger
(Master thesis, 2009)This master thesis investigates twisted tube type shell-and-tube heat exchangers with emphasis on thermal-hydraulic characteristics, fouling and vibration properties. An extensive literature study has been carried out in ... -
Investigation of a twisted-tube typeshell-and-tube heat exchanger
(Master thesis, 2009) -
Investigation of advanced supermarket refrigeration units for Scandinavian climates
(Master thesis, 2021)Denne masteroppgaven omhandler analyse av to kjølesystemer gitt av Kelvin AS, som er en av de ledende firmaene innen kjølesystemer til norske matbutikker. Systemene er transkritiske kjølesystemer med CO2 som kuldemedie, ... -
Investigation of air driven ejector for ballast pump
(Master thesis, 2022)Ballastpumper spiller en viktig rolle for å opprettholde stabiliteten til skip ved å pumpe sjøvann inn eller ut av ballastvannstankene under lasting, lossing og trim av fartøyet. Under pumpedrift må impellerene være nedsenket ... -
Investigation of an Innovative Latent Heat Storage Concept in a Stovepipe
(Journal article; Peer reviewed, 2018)Latent heat storage (LHS) is a promising concept for small-scale batch combustion. One example is wood stoves, which rely on a batch combustion process that yields a transient heat production with high peak effect. A ... -
Investigation of an LNG fuel system for a Norwegian coast guard ship: Undersøkelse av LNG drivstoffsystem for skip i den norske kystflåten
(Master thesis, 2014)This report examines the reasons behind Natural Gas (NG) engine de-loading on LNG fuelled vessels. Two instances of NG engine de-loading due to low tank pressure have been document on KV Bergen in the Norwegian Coast Guard. ... -
Investigation of bubbling behavior in deep fluidized beds at different gas velocities using electrical capacitance tomography
(Journal article; Peer reviewed, 2019)Deep bubbling fluidized beds have some advantages that make them attractive for industrial applications. Using different powders, this paper investigates the bubbling behavior in deep beds. The results show that bubbles ... -
Investigation of CFD Simulations of Flow in the Upper Airways
(Master thesis, 2017)This Master s thesis extends previous work conducted in the collaboration project called Modelling of obstructive sleep apnea by fluid-structure interaction in the upper airways. The main objective of the current work was ... -
Investigation of CO2 hybrid groundcoupled heat pumping system for warm climate
(Doctoral theses at NTNU;2017:40, Doctoral thesis, 2017)Environmental sustainability, renewable and clean energy utilization and energy conservation have become key issues facing the development of modern society. In the field of refrigeration, air conditioning and heat pumping ... -
Investigation of Combined Heating and Cooling Systems with Short-and Long-Term Storages
(Peer reviewed; Journal article, 2022)Modern buildings in cold climates, like Norway, may have simultaneous heating and cooling demands. For these buildings, integrated heating and cooling systems with heat pumps, as well as short-term and long-term thermal ... -
Investigation of Compression Ignition Combustion of Glycerol-Diesel Fuel Emulsions
(Master thesis, 2019)With Biodiesel production having established in the past century, there is an ongoing interest to add value to its abundant by-product glycerol. With regard to a shortly closed product cycle, its utilisation in the fuel ...