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Fluid Endurance Time Tests Using the NCAR Snow Machine: Ethylene Glycol-Based Type II and IV Fluids, Type I Fluids and Conditions Near and Above 0 Degrees C.
| 题名： | Fluid Endurance Time Tests Using the NCAR Snow Machine: Ethylene Glycol-Based Type II and IV Fluids, Type I Fluids and Conditions Near and Above 0 Degrees C. |
| 作者： | R. Rasmussen; S. Landoff; |
| 关键词： | snow machine,fluid endurance time tests,national center for atmospheric research,national center for atmospheric research (ncar);three investigations; |
| 摘要： | This report summarizes the results of three investigations of the use of the National Center for Atmospheric Research (NCAR) Snow Machine in anti-icing fluid endurance time tests. The first investigation focused on its performance for ethylene glycol-based Type II and Type IV fluids; the second examined its suitability for testing Type I fluids, and the third examined its suitability for testing at temperatures near and above 0 degrees C. Endurance time tests of Type II and IV fluids conducted in 2004 using the snow machine showed that it gave results that generally compared well with results from outdoor tests at the same conditions for all fluids except the only ethylene glycol-based fluid tested, ULTRA+. However, the number of tests was limited, and some had highly varying conditions. This report presents the results of subsequent ULTRA+ tests conducted to determine if the poor performance was more likely due to factors such as variable wind speed or direction, snowfall rate, or possibly experimental error, or to an inherent flaw in the snow machine for this particular fluid type. / NOTE: Final rept. / Supplementary Notes: Sponsored by Federal Aviation Administration, Washington, DC. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| 报告类型： | 科技报告 |
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