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Fujinaka Junya


Solid carbon dioxide cooling system aiming at improving the detergency of dry ice blast cleaning

大島商船高等専門学校紀要 Volume 44 Page 11-15
published_at 2011-12
OS10044000003.pdf
[fulltext] 1.27 MB
Title
ドライアイスブラストの洗浄力向上を目指した固体二酸化炭素冷却システム
Solid carbon dioxide cooling system aiming at improving the detergency of dry ice blast cleaning
Creators Fujinaka Junya
Creators Masuyama Shinji
Creators Masutani Morihiro
Creators Tamura Ryosuke
Creators Nishimura Hayato
Source Identifiers
Creator Keywords
G-M cryocooler dry ice blast cleaning solid carbon dioxide
Dry ice blast cleaning has some advantages over conventional cleaning methods such as sand blast cleaning. However, the detergency is not sufficient for particular users because a hardness of dry ice is approximately 2 Mohs. To increase the detergency, a solid carbon dioxide (CO2) is required as a blasting material. From the point of view, a new cooling system to produce the solid CO2 using a single stage Gifford-McMahon (G-M) cryocooler (SUZUKISHOKAN, RF90S) with a ompressor (SUZUKISHOKAN, C300G) was constructed and tested. The G-M cryocooler directly cools a cold box containing the ethanol solution. A CO2
vessel is immersed in the ethanol solution, and a solid CO2 is produced in the CO2 vessel. Experimental result showed that the temperature of ethanol solution achieved temperatures below -56.6 ℃ that is the triple point of CO2. This result indicates that it would be possible to produce the solid CO2 using this cooling system. This paper describes the configuration of new cooling system, experimental results of cooling characteristics, and numerical analysis.
Languages jpn
Resource Type departmental bulletin paper
Publishers 大島商船高等専門学校
Date Issued 2011-12
File Version Version of Record
Access Rights open access
Relations
[ISSN]0387-9232
[NCID]AN00031668