Share

The thermal conductivity of flexible polyurethane foams at low temperature.

La conductividad térmica de espumas flexibles de poliuretano a baja temperatura.

Author(s) : ZHANG J., JI Y., WANG Y.

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 2007-2540). The thermal transfer mechanism of flexible polyurethane (PU) foams at low temperature has been discussed. According to the structural model diagram of flexible PU foam, the criterion L of convection can be calculated when parameters and influences are considered at low temperature. The thermal conductivity of the flexible PU foam at low temperature can be calculated, too. In order to compare with the calculated thermal conductivity, the thermal conductivity of the flexible PU foam at low temperature has been tested by means of the double-sample of guarded hot-plate apparatus in steady thermal flow which is usually used to test the thermal conductivity of the rigid PU foam. Finally, the curve between temperature and thermal conductivity at low temperature has been obtained. Furthermore, according to the test, the factors (such as temperature, density, water absorption etc.) which may change or influence the thermal conductivity have been discussed.

Available documents

Format PDF

Pages: 34-38

Available

  • Public price

    20 €

  • Member price*

    15 €

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: La conductividad térmica de espumas flexibles de poliuretano a baja temperatura.
  • Record ID : 2009-0562
  • Languages: Spanish
  • Source: IIF-IIR/Frío Calor Aire acond. - vol. 36 - n. 406
  • Publication date: 2008/09

Links


See other articles in this issue (4)
See the source

Indexing