蒸汽灭菌循环中负载定位的影响：实验和数值研究.pdf

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1、Influence of the load positioning duringInfluence of the load positioning during a a steam sterilization cycle:steam sterilization cycle:An experimental and numerical studyName:Simon PletzerCo-authors:Marco Miranda,Marino Magnoand Christoph HochenauerAffiliation:Technical University of Graz(AUT)Cont

2、act:simon.pletzertugraz.atOverviewOverviewI.I.BackgroundBackgroundII.II.MethodsMethods ExperimentsSterilizerCycleLoads SimulationsComputational fluid dynamics(CFD)Modeling of the sterilizerIII.III.ResultsResults Load temperatures Flow field Steam distributionIV.IV.ConclusionConclusionlower trayupper

3、 trayBackgroundBackgroundCooperationCooperationbetween TU Graz TU Graz and W&H Sterilization W&H Sterilization S.r.lS.r.l.since almost 10 years.since almost 10 years Improve the understanding of physical processes within a steam sterilizer Decrease the water and energy consumption Supporting the dev

4、elopment process of new sterilizers and new components(ejector,heaters,etc.)Simulations of bacteria killing rates on surfacesSupport Support thedevelopmentdevelopmentof a small small chamber sterilizersterilizer 5 liter(also 2.5 liter)Experiments and numerical simulationsSteam distributionHeating pr

5、ocess of the chamber and the loadsIs there a influence on the load positioning even inside small chambers?Is there a influence on the load positioning even inside small chambers?Investigation on the heating process of the loads Better to place the loads on the lower or the upper tray?Better to place

6、 the loads in the middle or on the edge of a tray?edgeedgemiddleSource:https:/shop- in temperature in C Cpressure in barpressure in bartime in stime in spressuretemperatureMethodsMethodsexperimentalStainless steel chamber5 liter internal volumeheaterchamberChamberinletsoutletAdapted universal 134 C