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Non-condensable gas has an adverse effect on heat conduction in pressure steam sterilization. An experiment was carefully designed to study the effect, and a semi-empirical formulation is obtained to predict the maximal temperature difference between outside and inside of a package. This paper gives a systematical insight into the non-condensable gas effect, and there is a threshold of the non-condensable gas concentration, beyond which the thermal sterilization becomes invalid for complete killing microorganisms.
PAPER REVISED: 2018-06-12
PAPER ACCEPTED: 2018-07-05
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THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 4, PAGES [2489 - 2494]
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© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence