We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Minimizing Errors Associated with Multiplate Radiation Shields.
- Authors
Richardson, Scott J.; Brock, Fred V.; Semmer, Steven R.; Jirak, Cathy
- Abstract
Multiplate radiation shield errors are examined using the following techniques: 1) ray tracing analysis, 2) wind tunnel experiments, 3) numerical flow simulations, and 4) field testing. The authors' objectives are to develop guidelines for radiation shield and temperature sensor design, to build an improved shield, and to determine factors that influence radiational heating errors. Guidelines for reducing radiational heating errors are given that are based on knowledge of the temperature sensor to be used, with the shield chosen to match the sensor design. A new class of shield called a part-time aspirated multiplate radiation shield is introduced. This type of shield consists of a multiplate design usually operated in a passive manner but equipped with fan-forced aspiration capability to be used when necessary (e.g., low wind speed). A prototype shield reduced radiational heating errors from 28 to 1.28C. In addition, nighttime low wind speed errors were reduced from 1.68 to 0.38C. Existing passive shields may be modified to incorporate part-time aspiration, thus making them cost effective.
- Subjects
RADIATION shielding; RADIATION; TEMPERATURE measuring instruments
- Publication
Journal of Atmospheric & Oceanic Technology, 1999, Vol 16, Issue 11, p1
- ISSN
0739-0572
- Publication type
Article
- DOI
10.1175/1520-0426(1999)016<1862:MEAWMR>2.0.CO;2