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Halvor Lund

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Halvor Lund

Forskningsleder

Halvor Lund
Telefon: 988 37 513
Mobil: 988 37 513
Avdeling: Gassteknologi
Kontorsted: Trondheim

Publikasjoner og ansvarsområder

Publikasjoner

Publikasjon

Thermodynamic modeling with equations of state: present challenges with established methods

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1457656

Equations of state (EoS) are essential in the modeling of a wide range of industrial and natural processes. Desired qualities of EoS are accuracy, consistency, computational speed, robustness and predictive ability outside of the domain where they have been fitted. In this work, we review present ch...

Publikasjon

A Two-Fluid Model for Vertical Flow Applied to CO2 Injection Wells

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1361080

Flow of CO2 in wells is associated with substantial variations in thermophysical properties downhole, due to the coupled transient processes involved: complex flow patterns, density changes, phase transitions, and heat transfer to and from surroundings. Large temperature variations can lead to therm...

Forfattere Linga Gaute Lund Halvor
År 2016
Type Tidsskriftsartikkel
Publikasjon

Study of Thermal Variations in Wells During Carbon Dioxide Injection

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1356624

Carbon dioxide (CO2) can be injected into the subsurface for the purpose of enhanced oil recovery (EOR), possibly with geological CO2 storage. This procedure brings about a set of unique challenges with respect to well construction, operation and remediation. As compared to normal production, CO2 in...

År 2016
Type Tidsskriftsartikkel
Publikasjon

A large time step Roe scheme applied to two-phase flow

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1361863

We consider a large time step (LTS) Roe scheme, originally suggested by LeVeque [Comm. Pure Appl. Math., 37 (1984), pp. 463-477] which has attained increased popularity in recent years. The scheme is based on a wave formulation of the ordinary Roe scheme, and the assumption that waves interact linea...

Forfattere Lindqvist Sofia Margareta Lund Halvor
År 2016
Type Presentasjon
Publikasjon

Potential of enhancing a natural convection loop with a thermomagnetically pumped ferrofluid

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1358679

The feasibility of using a thermomagnetically pumped ferrofluid to enhance the performance of a natural convection cooling loop is investigated. First, a simplified analytical estimate for the thermomagnetic pumping action is derived, and then design rules for optimal solenoid and ferrofluid are pre...

År 2016
Type Tidsskriftsartikkel
Publikasjon

The influence of CO2 mixture composition and equations of state on simulations of transient pipeline decompression

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1369968

In a CO2 transport pipeline, decompression can occur either due to planned maintenance or accidental rupture. We investigate the impact of modelling simplifications and assumptions regarding the purity of CO2 on the decompression of an industrial scale transport pipeline. Using industrially relevant...

År 2016
Type Tidsskriftsartikkel
Publikasjon

A large time step Roe scheme applied to two-phase flow

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1392319

We consider a large time step (LTS) Roe scheme, originally suggested by LeVeque [Comm. Pure Appl. Math., 37(1984), pp. 463-477] which has attained increased popularity in recent years. The scheme is based on a wave formulation of the ordinary Roe scheme, and the assumption that waves interact linear...

Forfattere Lindqvist Sofia Margareta Lund Halvor
År 2016
Type Konferanseartikkel/Bokkapittel
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