Publication result detail

Assessment of condensation of water vapor in the mixing chamber by CFD method

VOJKŮVKOVÁ, P.; ŠIKULA, O.; WEYR, J.

Original Title

Assessment of condensation of water vapor in the mixing chamber by CFD method

English Title

Assessment of condensation of water vapor in the mixing chamber by CFD method

Type

Paper in proceedings (conference paper)

Original Abstract

The analyzed topic belongs to the field of design and operation of HVAC systems, focusing mainly on mixing chambers. The paper deals with problems of condensation and freezing of water vapour on walls of mixing chambers in a special case, when the partial pressure of the final resulting state of the mixture of warm moist air and colder air is located above the saturation limit. Experimental in situ methods and computer computational fluid dynamics (CFD) modelling method were used for processing. The main contribution of this work is the finding that partial condensation and freezing of water vapour may occur in local parts of the mixing chamber. It causes problems in terms of hygienic safety and service life of these devices. In particular it has been found that condensation and freezing of water vapour may occur even if relative humidity of the resulting mixture is about 70 %.

English abstract

The analyzed topic belongs to the field of design and operation of HVAC systems, focusing mainly on mixing chambers. The paper deals with problems of condensation and freezing of water vapour on walls of mixing chambers in a special case, when the partial pressure of the final resulting state of the mixture of warm moist air and colder air is located above the saturation limit. Experimental in situ methods and computer computational fluid dynamics (CFD) modelling method were used for processing. The main contribution of this work is the finding that partial condensation and freezing of water vapour may occur in local parts of the mixing chamber. It causes problems in terms of hygienic safety and service life of these devices. In particular it has been found that condensation and freezing of water vapour may occur even if relative humidity of the resulting mixture is about 70 %.

Keywords

condensation; mixing chamber; water vapor; CFD simulation

Key words in English

condensation; mixing chamber; water vapor; CFD simulation

Authors

VOJKŮVKOVÁ, P.; ŠIKULA, O.; WEYR, J.

RIV year

2016

Released

06.05.2015

Publisher

EDP Sciences

Location

France

ISBN

9781510803213

Book

EFM14 - Experimental Fluid Mechanics 2014

ISBN

2100-014X

Periodical

EPJ Web of Conferences

Volume

2015

Number

92

State

French Republic

Pages from

1

Pages to

7

Pages count

7

URL

http://www.epj-conferences.org/articles/epjconf/abs/2015/11/epjconf_efm2014_02112/epjconf_efm2014_02112.html

Full text in the Digital Library

http://hdl.handle.net/11012/70196

BibTex

@inproceedings{BUT110928,
  author="Petra {Vojkůvková} and Ondřej {Šikula} and Jan {Weyr}",
  title="Assessment of condensation of water vapor in the mixing chamber by CFD method",
  booktitle="EFM14 - Experimental Fluid Mechanics 2014",
  year="2015",
  journal="EPJ Web of Conferences",
  volume="2015",
  number="92",
  pages="1--7",
  publisher="EDP Sciences",
  address="France",
  doi="10.1051/epjconf/20159202112",
  isbn="9781510803213",
  issn="2100-014X",
  url="http://www.epj-conferences.org/articles/epjconf/abs/2015/11/epjconf_efm2014_02112/epjconf_efm2014_02112.html"
}

Documents

epjconf_efm2014_02112