Analysis of Reverse Flow for Single Phase Fluid Inside U-Tubes of Steam Generator

DOI

10.2991/eame-15.2015.71How to use a DOI?

Keywords

U-tubes; reverse flow; instability; steam generator; single phase fluid

Abstract

The heat transfer and turbulent flow inside U-tubes in steam generator (SG) are studied. A flow model based on one-dimensional Oberbeck-Boussinesq equation is proposed and improved to analyze the phenomenon of reverse flow. The relationship between the mass flow velocity and pressure drop is established, and the characteristic mass flow velocity (CMFV) and characteristic pressure drop (CPD) are defined. The effect of inner diameter on the reverse flow in SG U-tubes can be obtained by analyzing the CMFV and CPD. The results show that the relationship between SG U-tube inner diameter and pressure drop is nonlinear and has a maximum, and the reverse flow happens more easily in SG U-tubes with the smaller inner diameter.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - S.M. Wang
AU  - D. Zhang
AU  - H.G. Xiao
AU  - X. Chu
PY  - 2015/07
DA  - 2015/07
TI  - Analysis of Reverse Flow for Single Phase Fluid Inside U-Tubes of Steam Generator
BT  - Proceedings of the 2015 International Conference on Electrical, Automation and Mechanical Engineering
PB  - Atlantis Press
SP  - 259
EP  - 262
SN  - 2352-5401
UR  - https://doi.org/10.2991/eame-15.2015.71
DO  - 10.2991/eame-15.2015.71
ID  - Wang2015/07
ER  -