Now showing items 121-130 of 770
High Back Pressure on Pressure Safety Valves (PSVs) in a Flare System. Developing the Simulation model, Identifying and analyzing the back-pressure build-up
(The University of Bergen, 2013-10-01)
Process safety is a disciplined framework for managing the integrity of operating systems and processes handling hazardous substances. It is achieved by applying good design principles, engineering, and operating and ...
Skaleringskriterier for vannflømming i sandstein og tertiær oljeutvinning ved bruk av CO2
(The University of Bergen, 2011-06-14)
I forbindelse med studier for økt oljeproduksjon utføres kjerneanalyse på kjerneprøver som representerer en liten fraksjon av oljereservoarer. I korte kjerneprøver vil de kapillære endeeffektene påvirke flømmingene, noe ...
Hydrate Monitoring using Capacitive Sensors
(The University of Bergen, 2013-06-02)
Gas hydrates are of particular interest in petroleum industry since their formation during oil-production can be a major risk factor. Gas hydrates can block pipelines, interrupt production, and in worst case even cause ...
Cutoff latitude variation during solar proton events: Causes and consequences
(WileyAmerican Geophysical Union, 2015-01)
To accurately quantify the effect of solar proton events (SPEs) on the atmosphere requires a good estimate of the particle energy deposition in the middle atmosphere (60–100 km) and how the energy is distributed globally. ...
A study of mass reconstruction in Z°→τ+τ-
(The University of Bergen, 2010-05-28)
Neutrinos escaping detection is one of the main problems in mass reconstruction with tau leptons. They must be neglected or corrected for in some way. This thesis discusses two methods of handling the neutrinos in ...
Properties of Terrestrial Gamma ray Flashes. Modelling and Analysis of BATSE and RHESSI data
(The University of Bergen, 2012-06-15)
This thesis objective is to study Terrestrial Gamma ray Flashes (TGFs), which are short burst (∼ 1 ms) of gamma-radiation from thunderstorms first discovered by Fishman et al. . The measured photons energies in ...
Transport and storage of CO2 in natural gas hydrate reservoirs
Storage of CO2 in natural gas hydrate reservoirs may offer stable long term deposition of a greenhouse gas while benefiting from methane production, without requiring heat. By exposing hydrate to a thermodynamically preferred ...
Scattering from spheres and cylinders - revisited
(Norwegian Physical Society, 2006)
Backscattering of sound from elastic spheres is commonly applied for calibration of acoustic systems. Measurements on the "form function" of various tungsten carbide spheres turned out not to match simulations based on ...
Flame Propagation in Dust Clouds: Challenges for Model Validation
Modelling of industrial dust explosions poses a formidable challenge to researchers and safety engineers. Whereas current best practice with respect to modelling the consequences of vapour cloud explosions in the petroleum ...
Effects of nonlinear sound propagation in fisheries research
(The University of Bergen, 2007-03-30)