Investigation of critical heat flux on abraded inconel 625 tube
Loading...
Date
2020-12-01
ORCID
Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
Czech Technical University in Prague
Altmetrics
Abstract
Aim of this work was to study flow boiling in an annular channel at low pressure and lowflow on a tube with modified surface roughness. The tube with the outer diameter of 9.14 mm and theheated length of 380 mm was made of Inconel 625 and was manually modified using 150 grit sandpaper.The tube was placed in a glass tube with an inner diameter of 14.8 mm. Outlet pressure was set to 120,200 and 300 kPa with varying mass flow from 400 to 600 kg/(m2·s). A high speed camera was used torecord several experiments to fully understand ongoing phenomena. Surface roughness was analysedusing a confocal laser microscope and the effects of different mass flux and pressure on the CHF valuewere observed. Above all, the optimization of the flow parameters was done from the collected dataand from the observed behaviour of the experimental loop
Description
Keywords
Citation
Acta Polytechnica CTU Proceedings. 2020, vol. 28, issue 1, p. 15-22.
https://ojs.cvut.cz/ojs/index.php/APP/article/view/6916
https://ojs.cvut.cz/ojs/index.php/APP/article/view/6916
Document type
Peer-reviewed
Document version
Published version
Date of access to the full text
Language of document
en