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Study of temperature distribution in insulated materials during the process of internal heating.

Estudio de la distribución de temperatura en materiales aislados durante el proceso de calentamiento interno.

Author(s) : LI Y., WANG R. S., WEI W.

Type of article: Periodical article

Summary

This article is the Spanish translation of an article presented at the 22nd IIR international Congress in Beijing, China (see the Bulletin of the IIR, reference 2007-2426). Vacuum-pumping is one of the important procedures for the technical process of manufacturing cryogenic cylinders, and a so-called "internal heating" method is widely employed during the vacuum-pumping process. In this study, the distribution of temperature in the insulating materials during the process of vacuum-pumping is experimentally investigated, using thermocouples fixed in the materials. Temperature distributions are tested under the static and dynamic conditions, respectively. It is found that the temperature gradient under the dynamic condition is much larger than that under the static condition, and can become steady more rapidly. This conclusion indicates that inner heating is more effective for vacuum-pumping.

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Pages: 46-50 (4 p.)

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Details

  • Original title: Estudio de la distribución de temperatura en materiales aislados durante el proceso de calentamiento interno.
  • Record ID : 2008-2397
  • Languages: Spanish
  • Source: IIF-IIR/Frío Calor Aire acond. - vol. 36 - n. 405
  • Publication date: 2008/07

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