| Series |
[NASA contractor report] ; NASA CR-175061
NASA contractor report ; 175061. ^A441636
|
| Abstract |
Anti-icing of the inlet of jet engines is generally performed with high pressure heated air that is directed forward from the compressor through a series of pipes to various manifolds located near the structures to be anti-iced. From these manifolds, the air is directed to all flowpath surfaces that may be susceptible to ice formation. There the anti-icing function may be performed by either heat conduction or film heating. Unfortunately, the prospect of utilizing lightweight, high strength composites for inlet structures of jet engines has been frustrated by the low transverse thermal conductivity of such materials. It was the objective of this program to develop an advanced materials and design concept for anti-icing composite structures. The concept that was evaluated used capillary glass tubes embedded on the surface of a composite structure with heated air ducted through the tubes. An analytical computer program was developed to predict the anti-icing performance of such tubes and a test program was conducted to demonstrate actual performance of this system. Test data and analytical code results were in excellent agreement. Both indicate feasibility of using capillary tubes for surface heating as a means for composite engine structures to combat ice accumulation. |
| General note | Title from title screen (viewed on June 29, 2012). |
| General note | "September, 1985." |
| General note | Original contains color plates: All DTIC and NTIS reproductions will be in black and white. |
| Access restriction | APPROVED FOR PUBLIC RELEASE AVAILABILITY: DOCUMENT PARTIALLY ILLEGIBLE. |
| Report note | Contractor report; Sept. 1984-Sept. 1985. |
| Funding information | Prepared for National Aeronautics and Space Administration, NASA Lewis Research Center under contract NAS3-24386 |
| Issued in other form | Microfiche: Ciardullo, Samuel W. Evaluation of capillary reinforced composites. |
| GPO item number | 0830-H-14 (online) |
| Govt. docs number |
NAS 1.26:175061 |
