El Instituto Politécnico Nacional
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http://repositoriodigital.ipn.mx/handle/123456789/11194| Título : | On the heat transfer through a solid slab heated uniformly and continuously on one of its surfaces |
| Palabras clave : | Heat thermal diffusivity |
| Fecha de publicación : | 16-ene-2013 |
| Editorial : | European Journal of Physics |
| Descripción : | Some peculiarities of the heat transfer through a sample that is heated by the
superficial absorption of light energy under continuous uniform illumination
are discussed. We explain, using a different approach to that presented in
a recent article published in this journal (Salazar et al 2010 Eur. J. Phys.
31 1053–9), that the front surface of a thick sample reaches a higher equilibrium
temperature than a thin one, a fact that may be against some people’s
first intuition. From the analytical solution of the problem, we obtain a
condition necessary to apply a very thermally thin sample approximation,
i.e. to neglect a temperature gradient across a sample. From the analysis of
the heat transfer through both a thermally thin and a thermally thick sample,
we suggest an inexpensive experiment suitable for measuring the thermal
diffusivity of low thermal conductivity solids. Both the theoretical analysis
and the suggested experiment can be suitable for students and teachers dealing
with heat transfer problems, thermal characterization techniques and/or partial
differential equations at undergraduate and graduate levels. Instituto Politecnico nacional, CONACyT |
| URI : | http://www.repositoriodigital.ipn.mx/handle/123456789/11194 |
| Otros identificadores : | doi:10.1088/0143-0807/32/3/014 http://hdl.handle.net/123456789/704 |
| Aparece en las colecciones: | Doctorado |
Ficheros en este ítem:
| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| EJP-Marin_2011.pdf | 43.5 kB | Adobe PDF | Visualizar/Abrir |
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