Browsing NTNU Open by Title
Now showing items 106305-106324 of 107910
-
Wet Chemical Synthesis of Materials for Intermediate Band Solar Cells
(Master thesis, 2011)The economical feasibility of commercial, single-junction solar cells is limited by high costs and limited efficiencies. New solar cell concepts and materials are sought to decrease the production costs and increase the ... -
Wet chemical synthesis of silicon nanoparticles and phosphorescent oxides for white light emitting diodes
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:209, Doctoral thesis, 2014) -
Wet Drilled Cuttings Bed Rheology
(Peer reviewed; Journal article, 2021)The cuttings transport efficiency of various drilling fluids has been studied in several approaches. This is an important aspect, since hole cleaning is often a bottleneck in well construction. The studies so far have ... -
Wet Gas Airfoil Analyses
(Master thesis, 2011)Subsea wet gas compression renders new possibilities for cost savings and enhanced gas recovery on existing gas wells. Technology like this opens to make traditional offshore processing plants redundant. With new technology, ... -
Wet Gas Compression - Diffuser Instabilities
(Master thesis, 2014)The Norwegian petroleum industry has played an important role in the country's industrial development since the first oil production started in 1971 at Ekofisk. At present, however, natural gas has become an important part ... -
Wet Gas Compression - IGV Control
(Master thesis, 2017)Wet gas compression and subsea technology has gained increased attention in the recent years. Subsea compression increase extraction from aging gas fields and make remote fields profitable. Wet gas compressors eliminate ... -
Wet Gas Compression - Transients
(Master thesis, 2017)Today, most of the large and easily accessible oil and gas fields on the Norwegian continental shelf has been developed. Future production potential is found in development of fields at large depths and cost-efficient ... -
Wet Gas Compression: Experimental investigation of the aerodynamics within a centrifugal compressor exposed to wet gas
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:106, Doctoral thesis, 2012) -
Wet Gas Compression: Impeller Rig
(Master thesis, 2009)Wet gas compression technology is of great value to the oil and gas industry for boosting of unprocessed well stream and to reduce investment costs related to equipment and personnel. The growing interest in wet gas ... -
Wet Gas Compressor Performance
(Master thesis, 2014)The world s energy demand is increasing and more attention is given to increase the recovery of gas fields. Installing a compressor near the wellhead can contribute to this. Constantly changing reservoir conditions requires ... -
Wet gas compressor performance evaluation
(Doctoral theses at NTNU;2022:46, Doctoral thesis, 2022)The demand for oil and gas from the maturing Norwegian continental shelf (NCS) remains high. Even though the concern for climate change is shifting energy production towards renewables, production on the NCS is expected ... -
Wet Gas Compressor Performance: A Numerical Investigation of Thermal-Equilibrium in a Centrifugal Compressor Exposed to Wet Gas
(Master thesis, 2012)Wet gas compression and subsea compression technology has gained increased focus in the recent years. With aging fields on the Norwegian continental shelf and new discoveries in arctic regions, subsea compression could ... -
Wet Gas Compressor Surge Detection
(Master thesis, 2013)The development of wet gas compressors for installation subsea is key to increase the recovery of oil and gas from the Norwegian Continental Shelf. Safe operation of the compressor depends on understanding of how wet gas ... -
Wet Gas Compressor Transient Operation
(Master thesis, 2018)Over the past years, the oil and gas industry has directed its attention towards subsea wet gas compression. Previous research has demonstrated that the operation of subsea wet gas compressors represents challenges related ... -
Wet Gas Compressor Transients
(Master thesis, 2014)This master thesis considers three subtasks related to transient operation of wet gas compressors.HYSYS Dynamics is used to establish a dynamic simulation model in the first subtask. The model is designed to predict transient ... -
Wet Gas Compressors - Stability and Range
(Doctoral thesis at NTNU;2016:230, Doctoral thesis, 2016)The oil and gas industry is a large user of turbomachinery. The demand for oil and gas is consistently growing, and changing market conditions require innovative solutions. Operation and optimization of turbomachinery ... -
Wet Torrefaction of Biomass – Production and Conversion of Hydrochar
(Doctoral thesis at NTNU;2015:20, Doctoral thesis, 2015)Biomass is a renewable and carbon neutral energy resource which has a high potential for replacing fossil fuels. However, the use of biomass for energy applications is not straightforward. It is because native solid ... -
Wet-chemical deposition of silicon quantum dots for enhanced solar cell efficiency
(Master thesis, 2011)Silicon quantum dots were synthesised wet-chemically by three different methods based on reduction of silicon tetrachloride with the reduction agents potassium naphthalide, sodium cyclopentadiene and the alkalide of ... -
Wet-granular rheology to measure cuttings-bed strength
(Journal article; Peer reviewed, 2021) -
WET: Word embedding-topic distribution vectors for MOOC video lectures dataset
(Journal article; Peer reviewed, 2020)In this article, we present a dataset containing word embeddings and document topic distribution vectors generated from MOOCs video lecture transcripts. Transcripts of 12,032 video lectures from 200 courses were collected ...