An experimental and theoretical study of radiative and conductive heat transfer in nongray semitransparent media
One dimensional temperature profiles and heat fluxes within a slab of molten glass were measured experimentally. The glass slab was contained in a platinum foil lined ceramic tray inside a high temperature furnace. An optical method of temperature measurement was developed in which a helium-neon las...
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| Format: | Technical Report |
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Cambridge, Mass. : M.I.T. Engineering Projects Laboratory, [1969]
2011
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| Online Access: | http://hdl.handle.net/1721.1/61455 |
| _version_ | 1811079791834562560 |
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| author | Eryou, N. Dennis Glicksman, Leon R. |
| author2 | Massachusetts Institute of Technology. Division of Sponsored Research. |
| author_facet | Massachusetts Institute of Technology. Division of Sponsored Research. Eryou, N. Dennis Glicksman, Leon R. |
| author_sort | Eryou, N. Dennis |
| collection | MIT |
| description | One dimensional temperature profiles and heat fluxes within a slab of molten glass were measured experimentally. The glass slab was contained in a platinum foil lined ceramic tray inside a high temperature furnace. An optical method of temperature measurement was developed in which a helium-neon laser beam was directed along an isothermal path through the glass. The attenuation of the beam was a strong function of temperature and was used to evaluate the local temperatures within the glass slab. In order to perform a theoretical analysis the spectral absorption coefficient of the glass was measured between .6328 microns and 2. 75 microns from 2000 0F to 23000F. Two analyses were performed; one for a diffuse platinum-glass boundary and the other for a specular boundary. The experimentally measured temperature profiles and heat fluxes agreed with the predicted profiles within 50F and the heat fluxes to within ten percent. |
| first_indexed | 2024-09-23T11:20:30Z |
| format | Technical Report |
| id | mit-1721.1/61455 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T11:20:30Z |
| publishDate | 2011 |
| publisher | Cambridge, Mass. : M.I.T. Engineering Projects Laboratory, [1969] |
| record_format | dspace |
| spelling | mit-1721.1/614552019-04-10T18:06:01Z An experimental and theoretical study of radiative and conductive heat transfer in nongray semitransparent media Eryou, N. Dennis Glicksman, Leon R. Massachusetts Institute of Technology. Division of Sponsored Research. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Massachusetts Institute of Technology. Heat Transfer Laboratory. Heat -- Transmission. Radiative transfer. One dimensional temperature profiles and heat fluxes within a slab of molten glass were measured experimentally. The glass slab was contained in a platinum foil lined ceramic tray inside a high temperature furnace. An optical method of temperature measurement was developed in which a helium-neon laser beam was directed along an isothermal path through the glass. The attenuation of the beam was a strong function of temperature and was used to evaluate the local temperatures within the glass slab. In order to perform a theoretical analysis the spectral absorption coefficient of the glass was measured between .6328 microns and 2. 75 microns from 2000 0F to 23000F. Two analyses were performed; one for a diffuse platinum-glass boundary and the other for a specular boundary. The experimentally measured temperature profiles and heat fluxes agreed with the predicted profiles within 50F and the heat fluxes to within ten percent. Sponsored by the National Aeronautics and Space Administration DSR Project 2011-03-04T23:29:25Z 2011-03-04T23:29:25Z 1969 Technical Report 14083477 http://hdl.handle.net/1721.1/61455 Technical report (Massachusetts Institute of Technology, Heat Transfer Laboratory) ; no. 66. 169 p application/pdf Cambridge, Mass. : M.I.T. Engineering Projects Laboratory, [1969] |
| spellingShingle | Heat -- Transmission. Radiative transfer. Eryou, N. Dennis Glicksman, Leon R. An experimental and theoretical study of radiative and conductive heat transfer in nongray semitransparent media |
| title | An experimental and theoretical study of radiative and conductive heat transfer in nongray semitransparent media |
| title_full | An experimental and theoretical study of radiative and conductive heat transfer in nongray semitransparent media |
| title_fullStr | An experimental and theoretical study of radiative and conductive heat transfer in nongray semitransparent media |
| title_full_unstemmed | An experimental and theoretical study of radiative and conductive heat transfer in nongray semitransparent media |
| title_short | An experimental and theoretical study of radiative and conductive heat transfer in nongray semitransparent media |
| title_sort | experimental and theoretical study of radiative and conductive heat transfer in nongray semitransparent media |
| topic | Heat -- Transmission. Radiative transfer. |
| url | http://hdl.handle.net/1721.1/61455 |
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