Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...

Details

Autor(en) / Beteiligte
Titel
Flow morphology and heat transfer analysis during high-pressure steam condensation in an inclined tube part I: Experimental investigations
Ist Teil von
  • Nuclear engineering and design, 2020-05, Vol.361, p.110553, Article 110553
Ort / Verlag
Amsterdam: Elsevier B.V
Erscheinungsjahr
2020
Link zum Volltext
Quelle
Elsevier ScienceDirect Journals Complete
Beschreibungen/Notizen
  • [Display omitted] •A thermo-hydraulic test facility for single effect studies at high-pressure steam condensation is introduced.•Steam condensation has been investigated in an inclined tube at up to 65 bar pressure and corresponding saturation conditions.•Wall heat flux is measured at five circumferential positions in a given axial position using a custom-made heat flux probe.•Averaged cross-sectional flow morphology is investigated using X-ray CT system with a spatial resolution of approx. 0.5 mm. In this paper, experimental investigations on the flow morphology and heat transfer in a single steam condenser tube are presented, which were performed at the thermal hydraulic test facility COSMEA (COndensation test rig for flow Morphology and hEAt transfer studies). This facility was setup to study the interrelation of condensation heat transfer with two-phase flow in a single condenser tube that is cooled by forced convection. Studies were performed for elevated pressures up to 65 bar at saturation conditions and for inlet steam mass flow of up to 1 kg/s and different inlet steam qualities. The wall heat flux is measured with distributed heat flux probe and global condensation rates were obtained from integral heat and mass balances. As a unique feature the cross-sectional phase distribution was studied via X-ray computed tomography. The data is going to be used for the validation of numerical simulations with 1D ATHLET and 3D CFD codes as presented in the second part of this paper.

Weiterführende Literatur

Empfehlungen zum selben Thema automatisch vorgeschlagen von bX