CFD Investigation of Non-Condensable Gases in Vacuum and Non-Vacuum Steam Sterilizers

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Abstract

Steam sterilization processes rely on high heat transfer rates from the steam to the medical devices. To guarantee this, all non-condensable gases (NCGs) must be removed from the steam sterilizer before sterilization. The ratios and distribution of the NCGs in the pre-sterilization phases of both a vacuum and a non-vacuum steam sterilizer are investigated. Two CFD models for simulation of the NCGs in the sterilizers were developed and validated by the measurements of a pressure sensor and eight thermocouples inside the steam sterilizer. Furthermore, a novel method was developed to calculate the real ratio of NCGs based on the standard measurement (EN 13060). The results show that the NCGs ratio defined in the EN 13060 did not accurately represent the real ratios of the NCGs.

Originalspracheenglisch
Seiten (von - bis)502-513
Seitenumfang12
FachzeitschriftChemie - Ingenieur - Technik
Jahrgang91
Ausgabenummer4
Frühes Online-Datum21 Jan 2019
DOIs
PublikationsstatusVeröffentlicht - Apr 2019

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Sterilizers
Steam
Computational fluid dynamics
Gases
Vacuum
Pressure sensors
Thermocouples
Heat transfer

Schlagwörter

    ASJC Scopus subject areas

    • !!Chemical Engineering(all)
    • !!Chemistry(all)
    • !!Industrial and Manufacturing Engineering

    Dies zitieren

    CFD Investigation of Non-Condensable Gases in Vacuum and Non-Vacuum Steam Sterilizers. / Feurhuber, Manuel; Magno, Marino; Miranda, Marco; Prieler, René Josef; Hochenauer, Christoph.

    in: Chemie - Ingenieur - Technik, Jahrgang 91, Nr. 4, 04.2019, S. 502-513.

    Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

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    AU - Hochenauer, Christoph

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