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Multi-Dimensional Thermal Properties of Insulated Heat Shield Material Systems
- Ground Vehicle Standard
- J2609_200312
- Issued
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This test method measures the system material properties of an insulated formed heat shield under in-vehicle conditions. While the material properties of the individual components can often be determined via existing test methods, the system properties of the entire composite is typically much harder to ascertain (especially for multi-layer shields). System material properties include thermal conductivity in the lateral or in-plane (x) direction, thermal conductivity through the thickness or perpendicular (y), surface emissivity on the top and bottom sides of the shield and specific heat of the shield material.
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Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| TABLE 1 | EXPERIMENTAL RESULTS, FORMAT OF THE .CSV DATA FILE | |
| TABLE A1 | PROPAGATED ERROR DUE TO A TEMPERATURE MISMEASUREMENT AT LOCATION 1T OF ±0.12%. | |
| TABLE A2 | PROPAGATED ERROR DUE TO A TEMPERATURE MISMEASUREMENT AT LOCATION 2B OF ±0.12%. | |
| TABLE A3 | PROPAGATED ERROR DUE TO A MISMEASUREMENT OF THE SHIELD THICKNESS BY ±0.127 MM. | |
| TABLE A4 | PROPAGATED ERROR DUE TO SHIELD WIDTH (NOMINALLY 22.5 OR 45 CM) TOO LARGE OR TOO SMALL BY 1% (REDISTRIBUTING THE TEMPERATURE SENSORS) | |
| TABLE A5 | PROPAGATED ERROR DUE TO HEAT SOURCE DIAMETER (NOMINALLY 50.8 MM) TOO LARGE OR TOO SMALL BY 0.127 MM. | |
| TABLE A6 | PROPAGATED ERROR DUE TO SPECIMEN-TO-SOURCE DISTANCE (NOMINALLY 25.4 MM) TOO LARGE OR TOO SMALL BY 0.127 MM. | |
| TABLE A7 | PROPAGATED ERROR DUE TO MISMEASUREMENT OF HEAT-SOURCE RADIOSITY TEMPERATURE BY ±0.5°C OR ±0.5% (WHICHEVER IS LARGER). | |
| TABLE A8 | PROPAGATED ERROR DUE TO MISMEASUREMENT OF ROOM-WALL RADIOSITY TEMPERATURE BY ±3°C OR ±3% (WHICHEVER IS LARGER). | |
| TABLE A9 | AVERAGE PROPAGATED ERROR WITH PRESENT SETUP. | |
| TABLE A10 | MAXIMUM PROPAGATED ERROR USING PRESENT SETUP. | |
| TABLE A11 | PREFERRED SPECIMEN WIDTH (IN CM) BASED ON EXPECTED SYSTEM SENSITIVITY. | |
| TABLE A12 | MAXIMUM PROPAGATED ERROR USING ONLY A 22.5 CM WIDE SPECIMEN. | |
| TABLE A13 | MAXIMUM PROPAGATED ERROR USING ONLY A 45 CM WIDE SPECIMEN. | |
| TABLE A14 | PROPAGATED ERROR DUE TO A TEMPERATURE MISMEASUREMENT AT LOCATION 1T OF ±1.1°C OR ±0.375% (WHICHEVER IS GREATER). | |
| TABLE A15 | PROPAGATED ERROR DUE TO SPECIMEN-TO-SOURCE DISTANCE (NOMINALLY 25.4 MM) TOO LARGE OR TOO SMALL BY 1.5875 MM. | |
| TABLE A16 | MAXIMUM PROPAGATED ERROR OF AN ISOTROPIC SPECIMEN USING AN ANISOTROPIC ANALYTICAL MODEL. | |
| TABLE A17 | MAXIMUM PROPAGATED ERROR USING AN UNPAINTED SPECIMEN HAVING AN EMISSIVITY OF 0.20 ON BOTH SIDES. | |
| TABLE A18 | MAXIMUM PROPAGATED ERROR WITH HEAT SOURCE NOMINALLY SET AT 300°C, RATHER THAN 500°C. | |
| TABLE A19 | MAXIMUM PROPAGATED ERROR WITH THE HEAT SOURCE NOMINALLY LOCATED 50.8 MM, RATHER THAN 25.4 MM, ABOVE SPECIMEN. | |
| TABLE A20 | MAXIMUM PROPAGATED ERROR WITH FORCED-AIR COOLING (H = H = 25 W/M K). | |
| TABLE C1 | CONDUCTIVITIES FOR STEEL AIR GAP SHIELD | |
| TABLE C2 | CONDUCTIVITIES FOR STEEL FIBERGLASS GAP SHIELD |
Issuing Committee
Materials, Processes and Parts Council
The Materials, Processes, and Parts Council (MPPC) promotes, directs, supervises and provides for the development of consensus SAE Technical reports. The council also conducts investigations for activities related to engineered materials, processes and parts used in the surface mobility industry. Participants in the SAE Materials, Processed and Parts Council include OEMs, suppliers, consulting firms, government and other interested parties.
Reference
| Number | Title |
|---|---|
| ASTMC1371 | This document is not part of the subscrption. |
| ASTMC177 | This document is not part of the subscrption. |
| J1361_201311 | Hot Plate Method for Evaluating Heat Resistance and Thermal Insulation Properties of Materials |
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