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

Manuel Feurhuber, Marino Magno, Marco Miranda, René Josef Prieler, Christoph Hochenauer

Publikation: Beitrag in einer FachzeitschriftArtikelBegutachtung

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

ASJC Scopus subject areas

  • Chemische Verfahrenstechnik (insg.)
  • Chemie (insg.)
  • Wirtschaftsingenieurwesen und Fertigungstechnik

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