dc.contributor.author | Øvstebø, Marta | |
dc.date.accessioned | 2016-09-21T09:05:28Z | |
dc.date.available | 2016-09-21T09:05:28Z | |
dc.date.issued | 2016-06 | |
dc.identifier.uri | http://hdl.handle.net/11250/2409133 | |
dc.description | Master's thesis in Petroleum engineering | nb_NO |
dc.description.abstract | A measurement technique for very low flow velocities based on thermal measurements is proposed as an alternative for measurements in larger- diameter pipes. The velocity of a locally accelerated thermal flow is calculated from the time shift between registration of heat pulse and distance separating the two temperature sensors. Additional study using PIV and
high-speed recording in analysing and quantifying the flow pattern induced by heat pulses in static and dynamic environments is performed.
The results from this study showed that a clear and distinct registration of heat pulses was necessary in order to easily calculate the average velocity. Based on small-scale laboratory works, location of the measurement equipment was decisive in terms of getting best possible registrations of heat pulses. The results show a jet-like pattern of the movement induced by heat pulse in static environment and the collision of jets resulting in a mushroom-like vortex structure in the dynamic environment. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | University of Stavanger, Norway | nb_NO |
dc.relation.ispartofseries | Masteroppgave/UIS-TN-IPT/2016; | |
dc.rights | Navngivelse-IngenBearbeidelse 3.0 Norge | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nd/3.0/no/ | * |
dc.subject | petroleumsteknologi | nb_NO |
dc.subject | petroleum engineering | nb_NO |
dc.subject | heat flow dynamics | nb_NO |
dc.subject | flow measurement | nb_NO |
dc.subject | natural gas technology | nb_NO |
dc.title | Development of a Thermal Based Flow Measurement Technique for Very Low Flow Velocities | nb_NO |
dc.type | Master thesis | nb_NO |
dc.subject.nsi | VDP::Technology: 500::Rock and petroleum disciplines: 510::Petroleum engineering: 512 | nb_NO |