ドライアイス粒子の形成と表面洗浄への応用

概要

論文の詳細を見る
Rapid expansion of liquid carbon dioxide through a nozzle can result in the production of dry ice particles by the Joule Thomson effect. Dry ice jets formed by this method are employed in various industrial fields because of their advantageous properties such as lower temperature and sublimated dry ice particles. However, fundamental knowledge on the production of dry ice particles in an expanded jet flow is still insufficient. The state of dry ice particles changes rapidly with time; therefore, dynamic analysis of particle production is essential. The present paper reviews research on dry ice jets and their applications, and then presents the latest findings obtained through in-situ observations and measurements. Finally, the paper addresses in detail dry surface cleaning using a dry ice jet, which has attracted research attention as an alternative method to conventional wet surface cleaning.