水蒸気中の冷却管近傍における不凝縮ガス計測

抄録

In the high-pressure steam sterilization device, the amount of non-condensable gas in the container needs to be stipulated because the inclusion of air into the steam leads to a decrease in performance. Especially, there is a possibility for a condensation of the non-condensable gas near the cooling zone because of the steam condensation. Therefore, in order to maintain sterilization performance, an understanding of the condition of regional non-condensable gas is required. Authors are advancing development of the measurement method of a small amount of non-condensable gas included in the steam by generating plasma and dispersing its emission of light. In this study, this method is applied to the detection of the non-condensable gas included in the atmospheric-pressure steam generated in the large container. Furthermore, we considered whether the non-condensable gas near the cooling zone in the container is condensed or not. It showed potential for the condensation of the non-condensable gas near the cooling zone.