Blar i Institutt for energi og prosessteknikk på tittel
Viser treff 495-514 av 4143
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Cascaded Organic Rankine Cycles (ORCs) for Simultaneous Utilization of Liquified Natural Gas (LNG) Cold Energy and Low-Temperature Waste Heat
(Peer reviewed; Journal article, 2020)Liquified Natural Gas (LNG) is a good way to transport natural gas from suppliers to end consumers. LNG contains a huge amount of cold energy due to the energy consumed in the liquefaction process. Generally, the LNG cold ... -
The Casimir effect for fermionic currents in conical rings with applications to graphene ribbons
(Peer reviewed; Journal article, 2020)We investigate the combined effects of boundaries and topology on the vacuum expectation values (VEVs) of the charge and current densities for a massive 2D fermionic field confined on a conical ring threaded by a magnetic ... -
Casimir energies for isorefractive or diaphanous balls
(Journal article; Peer reviewed, 2018)It is known that the Casimir self-energy of a homogeneous dielectric ball is divergent, although a finite self-energy can be extracted through second order in the deviation of the permittivity from the vacuum value. The ... -
Casimir energies of self-similar plate configurations
(Journal article; Peer reviewed, 2016)We construct various self-similar configurations using parallel δ-function plates and show that it is possible to evaluate the Casimir interaction energy of these configurations using the idea of self-similarity alone. We ... -
Casimir force and its relation to surface tension
(Journal article; Peer reviewed, 2017)From energy considerations there is reason to expect that the work done by Casimir forces during a slow displacement of the parallel plates reflects the free energy of the surface tension of the adjacent surfaces. We show ... -
Casimir force between a half-space and a plate of finite thickness
(Journal article; Peer reviewed, 2016)Zero-frequency Casimir theory is analyzed from different viewpoints, with the aim of obtaining further insight into the delicate Drude-plasma issue that turns up when one considers thermal corrections to the Casimir force. ... -
Casimir forces in a plasma: possible connections to Yukawa potentials
(Journal article; Peer reviewed, 2014)We present theoretical and numerical results for the screened Casimir effect between perfect metal surfaces in a plasma. We show how the Casimir effect in an electron-positron plasma can provide an important contribution ... -
Casimir friction between dense polarizable media
(Peer reviewed; Journal article, 2013)The present paper—a continuation of our recent series of papers on Casimir friction for a pair of particles at low relative particle velocity—extends the analysis, so as to include dense media. The situation becomes, in ... -
Casimir quantum levitation tuned by means of material properties and geometries
(Journal article; Peer reviewed, 2014)The Casimir force between two surfaces is attractive in most cases. Although stable suspension of nano-objects has been achieved, the sophisticated geometries make them difficult to be merged with well-established thin ... -
Catalytic conversion of biomass to produce higher quality liquid bio-fuels
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:187, Doctoral thesis, 2005) -
Catchment Based Aerodynamic Performance Analysis of Small Wind Turbine Using a Single Blade Concept for a Low Cost of Energy
(Journal article; Peer reviewed, 2020) -
Cation Exchange Membranes and Process Optimizations in Electrodialysis for Selective Metal Separation: A Review
(Peer reviewed; Journal article, 2023)The selective separation of metal species from various sources is highly desirable in applications such as hydrometallurgy, water treatment, and energy production but also challenging. Monovalent cation exchange membranes ... -
CCS on Offshore Oil and Gas Installation - Design of Post Combustion Capture System and Steam Cycle
(Journal article; Peer reviewed, 2017)Most of the released CO2 on offshore oil and gas installation originates from the gas turbines that power the installations. For certain offshore installations, CO2 capture and storage (CCS) could be an alternative to ... -
Centrifugal Pump for a Rocket Engine
(Master thesis, 2019)Oppgaven i denne masteroppgaven var˚a designe og gjennomføre numerisk strømningsberegning p˚a en sentrifugalpump ment for en rakettmotor. Pumpen skulle, i tillegg til ˚a levere ønsket trykkøkning, kjøre totalt uten kavitasjon. ... -
CFD Analysis of a Microfluidics Lab-on-a-Chip Component
(Master thesis, 2010)The idea of a Lab-on-a-Chip is to integrate a laboratory on a small chip. This makes the Lab-on-a-Chip technology dependent on the knowledge of microfludics. The goals of this project were to model, and then analyse and ... -
CFD Analysis of a Pelton Turbine
(Master thesis, 2012)A Pelton design software is currently being developed at the Waterpower laboratory at NTNU. The motivation behind this software is to streamline the parametric design process for Pelton turbines. A numerical flow model is ... -
CFD Analysis of a Pelton Turbine in OpenFOAM
(Master thesis, 2013)During the spring of 2012, Lorentz Fjellanger Barstad developed a method for modelling the flow in a Pelton turbine subject to a high-speed water jet using the Computational Fluid Dynamics (CFD) software ANSYS CFX. The ... -
CFD Analysis of R744 Ejectors
(Master thesis, 2012)Ejector systems have been applied for many decades in refrigeration systems and this is still a very active field of research. More recently, ejector technology has been applied to transcritical refrigeration systems. ... -
CFD Analysis of Wave Induced Loads on Tidal Turbine Blades
(Master thesis, 2012)Abstract— The object of this paper is to investigate the influence of wave-current interaction on a tidal turbine. An experiment at Norwegian Marine Technology Research Institute (MARINTEK) has been carried out, and a CFD ... -
CFD av strømningskarakteristikker i hydrauliske motorer
(Master thesis, 2009)CFD-vertøy er i dagens industri et mye brukt redskap for analyse av komplekse strømningsdynamiske problemstillinger. Dette gjelder også hos Rolls-Royce Marine Deckmachinery i Brattvåg. Her blir CFD brukt på hydrauliske ...