Assessment of condensation of water vapor in the mixing chamber by CFD method
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...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
EDP Sciences
2015-01-01
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Series: | EPJ Web of Conferences |
Online Access: | http://dx.doi.org/10.1051/epjconf/20159202112 |
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author | Vojkůvková Petra Šikula Ondřej Weyr Jan |
author_facet | Vojkůvková Petra Šikula Ondřej Weyr Jan |
author_sort | Vojkůvková Petra |
collection | DOAJ |
description | 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 %. |
first_indexed | 2024-12-17T02:32:48Z |
format | Article |
id | doaj.art-6e0f62877d2e4192a90e357014bfc403 |
institution | Directory Open Access Journal |
issn | 2100-014X |
language | English |
last_indexed | 2024-12-17T02:32:48Z |
publishDate | 2015-01-01 |
publisher | EDP Sciences |
record_format | Article |
series | EPJ Web of Conferences |
spelling | doaj.art-6e0f62877d2e4192a90e357014bfc4032022-12-21T22:06:56ZengEDP SciencesEPJ Web of Conferences2100-014X2015-01-01920211210.1051/epjconf/20159202112epjconf_efm2014_02112Assessment of condensation of water vapor in the mixing chamber by CFD methodVojkůvková PetraŠikula OndřejWeyr JanThe 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 %.http://dx.doi.org/10.1051/epjconf/20159202112 |
spellingShingle | Vojkůvková Petra Šikula Ondřej Weyr Jan Assessment of condensation of water vapor in the mixing chamber by CFD method EPJ Web of Conferences |
title | Assessment of condensation of water vapor in the mixing chamber by CFD method |
title_full | Assessment of condensation of water vapor in the mixing chamber by CFD method |
title_fullStr | Assessment of condensation of water vapor in the mixing chamber by CFD method |
title_full_unstemmed | Assessment of condensation of water vapor in the mixing chamber by CFD method |
title_short | Assessment of condensation of water vapor in the mixing chamber by CFD method |
title_sort | assessment of condensation of water vapor in the mixing chamber by cfd method |
url | http://dx.doi.org/10.1051/epjconf/20159202112 |
work_keys_str_mv | AT vojkuvkovapetra assessmentofcondensationofwatervaporinthemixingchamberbycfdmethod AT sikulaondrej assessmentofcondensationofwatervaporinthemixingchamberbycfdmethod AT weyrjan assessmentofcondensationofwatervaporinthemixingchamberbycfdmethod |