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Effet de l'élimination des bio-contaminants dans une unité de conditionnement d'air compacte assistée par déshydratant liquide.

Removal effect of bio-contaminants in a packaged liquid desiccant-assisted air conditioning unit.

Numéro : pap. 2333

Auteurs : DONG H. W., JEONG J. W.

Résumé

The purpose of the study is to evaluate the removal effects of microbial contamination, such as fungi and bacteria, on a packaged liquid desiccant-assisted air conditioning unit. Recently, a package unit of a liquid desiccant and indirect and direct evaporative cooling-assisted 100% outdoor air system (LD-IDECOAS) was proposed. The LD-IDECOAS consists of a liquid desiccant system, an indirect evaporative cooler, and a direct evaporative cooler. The test was conducted under operating conditions during the cooling season when the LD-IDECOAS operates a liquid desiccant system, an indirect evaporative cooler, and a direct evaporative cooler. The sampling is performed ate the inlet (outdoor air) and outlet (supply air) of the package unit. Fungi were cultured in a potato dextrose agar (PDA) medium, and bacteria were cultured in a tryptic soy agar (TSA) medium as indices of bio-contaminants. The results indicated that the concentration of fungal contamination in the supply air (that passes through the package unit) decreased by 7.7% when compared to that of outdoor air. The concentration of bacterial contamination in the outlet was also reduced by 72.4% when compared to that in the inlet. Hence, the package unit improves air quality by removing bio-contaminants, such as fungi and bacteria, although unexpected contamination occurred in the experiment.

Documents disponibles

Format PDF

Pages : 10

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Removal effect of bio-contaminants in a packaged liquid desiccant-assisted air conditioning unit.
  • Identifiant de la fiche : 30024508
  • Langues : Anglais
  • Source : 2018 Purdue Conferences. 17th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 09/07/2018

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