A new viewpoint to studying the condensate retention and drainage process on air cooling coil

X. G. Xu, Ming Yin Jonathan Chan, Shiming Deng

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)

Abstract

Normally simultaneous air cooling and dehumidification takes place in an air cooling coil. The condensate accumulated on the cooling coil surfaces could significantly affect its thermal and hydraulic performance. The condensate retention and drainage has bee usually regarded as a static process. The total mass of condensate retained was viewed as being influenced by the balance among gravitational, air flow drag forces and surface tension retaining force only. With fixed geometric and surface characteristics and under a constant air Reynolds Number, a cooling coil was therefore considered to have a fixed amount of condensate retained. However, some researches pointed out that the total mass of condensate retained could be influenced by system operating parameters such as temperature and moisture content of inlet air. A previously related study by authors developed a mathematic model and considered this process as being a dynamic but without giving a detailed discussion. In this paper, through a further analysis of data obtained in the previously study, a new viewpoint on condensate retention and drainage process has been suggested in order to better explain the experimental results and to provide a base for proposing some future related research work.
Original languageEnglish
Title of host publicationProceedings of the ASME Summer Heat Transfer Conference 2009, HT2009
Pages657-665
Number of pages9
Volume1
DOIs
Publication statusPublished - 1 Dec 2009
Event2009 ASME Summer Heat Transfer Conference, HT2009 - San Francisco, CA, United States
Duration: 19 Jul 200923 Jul 2009

Conference

Conference2009 ASME Summer Heat Transfer Conference, HT2009
CountryUnited States
CitySan Francisco, CA
Period19/07/0923/07/09

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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