HEAT FLUX JUMP METHOD AS A POSSIBILITY OF CONTACTLESS MEASUREMENT OF LOCAL HEAT TRANSFER COEFFICIENTS
This article deals with the derivation of the temperature response of the finite thickness wall, which is heated by heat flow, as a possibility to measure the local values of the heat transfer coefficient with a very high spatial resolution. In addition to its own experimental measurement technique,...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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CTU Central Library
2019-08-01
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| Series: | Acta Polytechnica |
| Subjects: | |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/ap/article/view/5399 |
| _version_ | 1818929189700501504 |
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| author | Stanislav Solnař Martin Dostál |
| author_facet | Stanislav Solnař Martin Dostál |
| author_sort | Stanislav Solnař |
| collection | DOAJ |
| description | This article deals with the derivation of the temperature response of the finite thickness wall, which is heated by heat flow, as a possibility to measure the local values of the heat transfer coefficient with a very high spatial resolution. In addition to its own experimental measurement technique, it is also possible to use this derivation to describe the gradual heating of the wall while using the temperature oscillation (TOIRT) method for the heat transfer measurement. The system of the partial differential equations and the boundary and initial conditions is solved by a transformation into Laplace’s space, where the task is easier to solve. At the end of the article, the results of the analytical solution are compared with a numerical solution of this problem. |
| first_indexed | 2024-12-20T03:40:51Z |
| format | Article |
| id | doaj.art-b66601b62b1f450db7d89388eba7bef5 |
| institution | Directory Open Access Journal |
| issn | 1210-2709 1805-2363 |
| language | English |
| last_indexed | 2024-12-20T03:40:51Z |
| publishDate | 2019-08-01 |
| publisher | CTU Central Library |
| record_format | Article |
| series | Acta Polytechnica |
| spelling | doaj.art-b66601b62b1f450db7d89388eba7bef52022-12-21T19:54:45ZengCTU Central LibraryActa Polytechnica1210-27091805-23632019-08-0159441142210.14311/AP.2019.59.04114492HEAT FLUX JUMP METHOD AS A POSSIBILITY OF CONTACTLESS MEASUREMENT OF LOCAL HEAT TRANSFER COEFFICIENTSStanislav Solnař0Martin Dostál1Czech Technical University in PragueCzech Technical University in PragueThis article deals with the derivation of the temperature response of the finite thickness wall, which is heated by heat flow, as a possibility to measure the local values of the heat transfer coefficient with a very high spatial resolution. In addition to its own experimental measurement technique, it is also possible to use this derivation to describe the gradual heating of the wall while using the temperature oscillation (TOIRT) method for the heat transfer measurement. The system of the partial differential equations and the boundary and initial conditions is solved by a transformation into Laplace’s space, where the task is easier to solve. At the end of the article, the results of the analytical solution are compared with a numerical solution of this problem.https://ojs.cvut.cz/ojs/index.php/ap/article/view/5399Heaviside function, heat transfer coefficient, experimental method, heat jump method |
| spellingShingle | Stanislav Solnař Martin Dostál HEAT FLUX JUMP METHOD AS A POSSIBILITY OF CONTACTLESS MEASUREMENT OF LOCAL HEAT TRANSFER COEFFICIENTS Acta Polytechnica Heaviside function, heat transfer coefficient, experimental method, heat jump method |
| title | HEAT FLUX JUMP METHOD AS A POSSIBILITY OF CONTACTLESS MEASUREMENT OF LOCAL HEAT TRANSFER COEFFICIENTS |
| title_full | HEAT FLUX JUMP METHOD AS A POSSIBILITY OF CONTACTLESS MEASUREMENT OF LOCAL HEAT TRANSFER COEFFICIENTS |
| title_fullStr | HEAT FLUX JUMP METHOD AS A POSSIBILITY OF CONTACTLESS MEASUREMENT OF LOCAL HEAT TRANSFER COEFFICIENTS |
| title_full_unstemmed | HEAT FLUX JUMP METHOD AS A POSSIBILITY OF CONTACTLESS MEASUREMENT OF LOCAL HEAT TRANSFER COEFFICIENTS |
| title_short | HEAT FLUX JUMP METHOD AS A POSSIBILITY OF CONTACTLESS MEASUREMENT OF LOCAL HEAT TRANSFER COEFFICIENTS |
| title_sort | heat flux jump method as a possibility of contactless measurement of local heat transfer coefficients |
| topic | Heaviside function, heat transfer coefficient, experimental method, heat jump method |
| url | https://ojs.cvut.cz/ojs/index.php/ap/article/view/5399 |
| work_keys_str_mv | AT stanislavsolnar heatfluxjumpmethodasapossibilityofcontactlessmeasurementoflocalheattransfercoefficients AT martindostal heatfluxjumpmethodasapossibilityofcontactlessmeasurementoflocalheattransfercoefficients |