Structural Optimization of Shell Side of Condenser Based on Porous-Medium Model

DOI

10.2991/aeece-15.2015.56How to use a DOI?

Keywords

condenser; porous-medium; tube-bundle; structural optimization

Abstract

According to the characteristics of fractal and distributed resistance of the condenser tube-bundle area, a porous medium model with three kinds of porosity is established based on the steam exhaust flow in the tube-bundle, and the changes of kinetic pressure and flow of steam exhaust around the inlet of bundle under different load were analyzed. The corner results show that the pressure distribution of the upper steam space of the condenser shell side was affected by the position and form of outer inlet corner of the upper tube-bundle area, and it leads to larger kinetic pressure change with direct sharp-angled transition, and the kinetic pressure disturbance is significantly enhanced with the load increase. The inlet kinetic pressure of the upper tube-bundle area depends on the push of condenser's exhaust pressure and the lower area on the condensation effect. It can reduce the kinetic pressure by strengthening or densifying the upper tube-bundle arrangement of the lower tube-bundle area, but it is necessary to slow down the tendency of the flow in this area and avoid work medium draining. The design margin of the lower edge length of lower tube-bundle area is too large, while that of the upper edge length of upper tube-bundle area is too narrow for the inflowing steam exhaust to expand and condense in time in the corresponding tube-bundle area.

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/).

Download article (PDF)

TY  - CONF
AU  - Hongcai Wang
AU  - Jinqiao He
PY  - 2015/09
DA  - 2015/09
TI  - Structural Optimization of Shell Side of Condenser Based on Porous-Medium Model
BT  - Proceedings of the International Conference on Advances in Energy, Environment and Chemical Engineering
PB  - Atlantis Press
SP  - 277
EP  - 282
SN  - 2352-5401
UR  - https://doi.org/10.2991/aeece-15.2015.56
DO  - 10.2991/aeece-15.2015.56
ID  - Wang2015/09
ER  -