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Thermal insulation with capillary active wick fabric for cold piping.

Tepelna izolace s kapilarne aktivni tkaninou pro rozvody chladu.

Author(s) : KOVERDYNSKÝ V.

Type of article: Article

Summary

The wick-concept for thermal insulation of cold piping is based on capillary suction of a fibre fabric that diverts condensed water vapour from the pipe surface to the outer surface of the insulation. From the surface of the insulation jacket the water will evaporate to the ambient air. This will prevent long-term accumulation of moisture in the insulation material. The wick keeps the hydrophobic insulation dry, allowing it to maintain its thermal performance. The only liquid moisture is kept in the wick fabric. The article presents the principle of operation of cold pipe insulation using the wick concept in either of two variations: the self-drying or the self-sealing system. Some experiments have been carried out using different variations of the two systems to investigate the conditions for exploiting the drying capabilities of the systems, and the results are given in the article. The results show that variations of these types of insulation systems work for pipes with wall temperatures above 0 °C and for ambient conditions within common ranges for industrial applications.

Details

  • Original title: Tepelna izolace s kapilarne aktivni tkaninou pro rozvody chladu.
  • Record ID : 2006-1165
  • Languages: Czech
  • Source: Vytápení Vetrání Instalace - vol. 15 - n. 1
  • Publication date: 2006

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