Browsing NTNU Open by Title
Now showing items 94297-94316 of 103926
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Thermoelectric Phenomena in Lithium Ion Batteries and Thermogalvanic Cells
(Doctoral theses at NTNU;2023:308, Doctoral thesis, 2023)Electrochemical cells are central in the shift towards green energy sources. Lithium-ion batteries have rapidly become one of the world’s leading energy storage technologies. Thermogalvanic cells can be used to convert ... -
Thermoelectric Power of Ion Exchange Membrane Cells Relevant to Reverse Electrodialysis Plants
(Journal article; Peer reviewed, 2019)A thermoelectric cell is designed and experiments are carried out in order to measure Seebeck coefficients of ion exchange membranes at different constant concentrations of NaCl in water. The purpose of the investigation ... -
Thermoelectric Properties of (Anti)ferromagnet - Superconductor Hybrid Junctions
(Master thesis, 2019)Denne masteroppgaven undersøker de termiske egenskapene til både en ferromagnet-superleder overgang og en antiferromagnet-superleder overgang. Målet med oppgaven er å utlede, grafisk fremstille og evaluere termisk ledningsevne, ... -
Thermoelectric properties of A-site deficient La-doped SrTiO3 at 100–900 °C under reducing conditions
(Journal article; Peer reviewed, 2019)Lanthanum doped strontium titanate is a potential n-type thermoelectric material at moderate and high temperatures. (La0.12Sr0.88)0.95TiO3 ceramics were prepared by two different routes, conventional sintering at 1500 °C ... -
Thermoelectric Properties of A-site Deficient Lanthanum Substituted Strontium Titanate
(Master thesis, 2014)The n-type thermoelectric material (La0.12Sr0.88)0.95TiO3-delta was sintered with the spark plasma sintering method at different temperatures and pressures. This was done to reduce the thermal conductivity of the material ... -
Thermoelectric Properties of Ca3Co2−xMnxO6 (x = 0.05, 0.2, 0.5, 0.75, and 1)
(Journal article; Peer reviewed, 2019)High-temperature instability of the Ca3Co4−yO9+δ and CaMnO3−δ direct p-n junction causing the formation of Ca3Co2−xMnxO6 has motivated the investigation of the thermoelectric performance of this intermediate phase. Here, ... -
Thermoelectric properties of Cu2Se1−xTex solid solutions
(Journal article, 2018)Binary Cu2Se and Cu2Te have gained great attention recently because of their interesting and abnormal physical properties, such as ultralow thermal conductivity, high carrier mobility, large effective mass of carriers and ... -
Thermoelectric Properties of Non-Aqueous Electrochemical Cells - Local Reversible Heat Effects Relevant for Lithium Ion Batteries
(Master thesis, 2018)The aim of this thesis was to investigate the thermoelectric properties and local reversible heat effects of cells relevant to lithium-ion batteries. The theory of non-equilibrium thermodynamics and experimental measurements ... -
Thermoelectric properties of non-stoichiometric CaMnO3-d composites formed by redox-activated exsolution.
(Journal article; Peer reviewed, 2019)A novel synthesis route for preparing well-defined composites based on CMO (CaMnO3) has been established taking advantage of the unique phase relations in the system Ca-Mn-O at reducing- and oxidizing atmosphere, respectively. ... -
Thermoelectrochemical Cell with Molten Carbonate Electrolyte
(Journal article, 2017)Industrial processes for production of metals and alloys by metallurgical and electrochemical methods generate a lot of heat due to irreversible losses. The waste heat should be used to generate electricity. Commercial ... -
Thermogravimetric Analysis of Thermal Insulating Materials Exposed to Sodium Vapor
(Journal article; Peer reviewed, 2019)The bottom thermal insulating layer in aluminum electrolysis cells is normally well protected from chemical attacks by a refractory layer. However, autopsies of spent cathode lining have shown that sodium vapor may reach ... -
Thermomechanical behaviour of semi-crystalline polymers: experiments, modelling and simulation
(Doctoral theses at NTNU;2017:317, Doctoral thesis, 2017)This work presents experimental investigations on two semi-crystalline materials: a rubbermodified polypropylene (PP) and a cross-linked low density polyethylene (XLPE). Uniaxial tension and compression tests were performed ... -
Thermomechanical processing of an AA6082 - IF steel cold roll bonded composite material
(Master thesis, 2017)The work carried out in this thesis was conducted to investigate thermomechanical aspects of a steel-aluminum cold roll bonded material. The objective was to study different production parameters related to ageing of an ... -
Thermomechanical properties of zirconium tungstate/hydrogenated nitrile butadiene rubber (HNBR) composites for low-temperature applications
(Journal article; Peer reviewed, 2016)Rubber compounds for pressure sealing application typically have inferior dimensional stability with temperature fluctuations compared with their steel counterparts. This effect may result in seal leakage failures when ... -
Thermopervaporation for regeneration of triethylene glycol (TEG):Experimental and model development
(Journal article; Peer reviewed, 2019)Subsea processing is getting increased interest in the oil and gas sector as it can provide broader exploration of the oil and gas with a lower environmental footprint. Dehydration of natural gas with the use of triethylene ... -
Thermophoresis and its effect on particle impaction on a cylinder for low and moderate Reynolds numbers
(Peer reviewed; Journal article, 2021)The effect of thermophoresis on the impaction of particles on a cylinder is investigated for different particle sizes, particle conductivities, temperature gradients and for Reynolds numbers between 100 and 1600. This is ... -
Thermophysical and compositional properties of natural gas hydrate
(Dr. ingeniøravhandling, 0809-103X; 2000:97, Doctoral thesis, 2000)Thermophysical properties (dissociation enthalpy, heat capacity, metastability) and compositional properties (hydrate number, free water and fractionation) of natural gas hydrate were studied experimentally on samples that ... -
Thermoreflectance techniques and Raman thermometry for thermal property characterization of nanostructures
(Peer reviewed; Journal article, 2020)The widespread use of nanostructures and nanomaterials has opened up a whole new realm of challenges in thermal management, but also leads to possibilities for energy conversion, storage and generation, in addition to ... -
Thermoregulatory Responses and Work Strain of Fishermen - A Field Study and a Laboratory Study
(Master thesis, 2015)Fishermen on board deep-sea trawlers in the Barents and Norwegian Sea are exposed to low air temperatures, strong winds, high humidity, rain, snow and work with varying intensities. No studies have investigated the effect ... -
Thermoregulatory responses and work strain of fishermen – a field study on board deep-sea fishing vessels
(Journal article; Peer reviewed, 2016)Background: Fishermen working on deep-sea vessels in the Barents and Norwegian Sea are exposed to low air temperatures, strong winds, high humidity, rain, snow and work at different intensities. Few studies have investigated ...