A heated-air curtain design using the Coanda effect to protect optical access windows in high-temperature, condensing, and corrosive stack environments

被引：0

作者：

Williams, Gustavious Paul ^{[1
,2
]}

Keenan, Thomas L. ^{[1
]}

Herning, James ^{[1
]}

Kimblin, Clare ^{[1
]}

DiBenedetto, John ^{[1
]}

Anthony, Glen ^{[1
]}

机构：

[1] Natl Secur Technol LLC, Las Vegas, NV 89030 USA

[2] Brigham Young Univ, Provo, UT 84602 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2011年 / 82卷 / 01期

关键词：

EMISSIONS;

D O I：

10.1063/1.3514098

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We present an air knife design for creating a heated air curtain to protect optical infrared access windows in high-temperature, condensing, and corrosive stack environments. The design uses the Coanda effect to turn the air curtain and to attach the air curtain to the window surface. The design was tested and verified on our 24 m stack and used extensively over a 6 yr period on several release stacks. During testing and subsequent use no detrimental changes to access window materials have been noted. This design allows stack monitoring without significantly affecting the stack flow profile or chemical concentration. (C) 2011 American Institute of Physics. [doi : 10.1063/1.3514098]

引用

页数：3