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Influence of the Needle Depth and Frequency on the Thermal Insulation Performance of Pre-Oxidised Fibre Felts

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Nr DOI: 10.5604/01.3001.0014.0936

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Abstract:

In this paper, the influence of the needle depth and frequency on the thermal insulation performance of pre-oxidised fibre felts was mainly investigated. The results showed that pre-oxidised fibre felts of a needle depth of 8 mm at a room temperature and working temperature of 100-200 °C had the best thermal insulation performance, while fibre for those of different needle depths with increasing temperature, the steady-state temperature difference increased linearly. With an increasing needle frequency, the thickness and gram weight of the pre-oxidised fibre felts showed a decreasing trend, while the coefficient of thermal conductivity exhibited an increasing one. For pre-oxidised fibre felts of different needle frequencies with increasing temperature, the steady-state temperature difference showed a linearly increasing trend.

Tags:

pre-oxidised fibre felt, needle depth, needle frequency, thermal insulation performance, thermal conductivity coefficient, back temperature.

Citation:

Zhao X, Liu Y, Liang T, Zheng Z. Influence of the Needle Depth and Frequency on the Thermal Insulation Performance of Pre-Oxidised Fibre Felts. FIBRES & TEXTILES in Eastern Europe  2020; 28, 4(142): 57-66. DOI: 10.5604/01.3001.0014.0936

Published in issue no 4 (142) / 2020, pages 57–66.

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