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Prototype thin-film thermocouple/heat-flux sensor for a ceramic-insulated diesel engine
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Barrows, Richard F. Kim, Walter S. |
| Copyright Year | 1988 |
| Description | A platinum versus platinum-13 percent rhodium thin-film thermocouple/heat-flux sensor was devised and tested in the harsh, high-temperature environment of a ceramic-insulated, low-heat-rejection diesel engine. The sensor probe assembly was developed to provide experimental validation of heat transfer and thermal analysis methodologies applicable to the insulated diesel engine concept. The thin-film thermocouple configuration was chosen to approximate an uninterrupted chamber surface and provide a 1-D heat-flux path through the probe body. The engine test was conducted by Purdue University for Integral Technologies, Inc., under a DOE-funded contract managed by NASA Lewis Research Center. The thin-film sensor performed reliably during 6 to 10 hr of repeated engine runs at indicated mean surface temperatures up to 950 K. However, the sensor suffered partial loss of adhesion in the thin-film thermocouple junction area following maximum cyclic temperature excursions to greater than 1150 K. |
| File Size | 455279 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880009508 |
| Archival Resource Key | ark:/13960/t5m953x5h |
| Language | English |
| Publisher Date | 1988-03-01 |
| Access Restriction | Open |
| Subject Keyword | Thin Films Insulation Rhodium Diesel Engines Platinum Thermocouples Prototypes Engine Tests Sensors Ceramics Heat Flux Heat Transfer Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
