Detail publikace

EXPERIMENTAL INVESTIGATION OF CRITICAL HEAT FLUX IN ANNULUS AT LOW PRESSURE AND LOW FLOW PARAMETERS

SUK, L. ŠTEVANKA, K. PETROSYAN, T. VLČEK, D.

Originální název

EXPERIMENTAL INVESTIGATION OF CRITICAL HEAT FLUX IN ANNULUS AT LOW PRESSURE AND LOW FLOW PARAMETERS

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

Steady state flow boiling experiments were conducted on a technically smooth Inconel 625 tube with outer diameter 9.1 mm at inlet pressures 131, 220 and 323 kPa, inlet temperatures 62, 78 and 94 °C and approximately 400, 600 and 1000 kg/(m2.s) mass flow. Water of these parameters was entering into the vertically aligned annulus, where the uniformly heated tube was placed until the critical heat flux (CHF) appeared. The experimental data were compared to estimations of CHF by local PGT tube correlation and Groeneveld’s look-up tables for tubes. The results imply that in the region of low pressure and low mass flux, the differences between calculations and experiments are substantial (more than 50 % of CHF). The calculations further imply that look-up tables and tube correlations should be corrected to the annulus geometry. Here, the Doerffer’s approach was chosen and led to a substantial enhancement of CHF estimation. Yet, a new correlation for the region of low pressure and flow is needed.

Klíčová slova

CHF, Inconel 625, boiling crisis, abraded surface

Autoři

SUK, L.; ŠTEVANKA, K.; PETROSYAN, T.; VLČEK, D.

Vydáno

1. 12. 2020

Nakladatel

Czech Technical University in Prague

Místo

Praha

ISBN

978-80-01-06794-9

Kniha

ŠIMÁNĚ 2020: Student Conference on Nuclear Engineering

Edice

28

ISSN

2336-5382

Periodikum

Acta Polytechnica CTU Proceedings

Ročník

28

Číslo

1

Stát

Česká republika

Strany od

50

Strany do

58

Strany počet

9

URL

https://ojs.cvut.cz/ojs/index.php/APP/article/view/6916

Plný text v Digitální knihovně

http://hdl.handle.net/11012/196565

BibTex

@inproceedings{BUT167772,
  author="Daniel {Vlček} and Ladislav {Suk} and Kamil {Števanka} and Taron {Petrosyan}",
  title="EXPERIMENTAL INVESTIGATION OF CRITICAL HEAT FLUX IN ANNULUS AT LOW PRESSURE AND LOW FLOW PARAMETERS",
  booktitle="ŠIMÁNĚ 2020: Student Conference on Nuclear Engineering",
  year="2020",
  series="28",
  journal="Acta Polytechnica CTU Proceedings",
  volume="28",
  number="1",
  pages="50--58",
  publisher="Czech Technical University in Prague",
  address="Praha",
  doi="10.14311/APP.2020.28.0050",
  isbn="978-80-01-06794-9",
  issn="2336-5382",
  url="https://ojs.cvut.cz/ojs/index.php/APP/article/view/6916"
}