Determination of the thermal conductivity of composted material |
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Affiliation: | 1. Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 5, 121 16 Prague 2, Czech Republic;2. CNT Nanotechnology Center, Technical University of Ostrava, 17. Listopadu 15/2172, 708 33 Ostrava, Poruba, Czech Republic;3. PCS s.r.o., Na Dvorcích 122/18, 140 00 Prague, Czech Republic |
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Abstract: | The objective of this study was to develop a reliable method for the determination of the thermal conductivity of composted material using the TP08 probe. Study was set out to determine whether the selection of a signal fragment used to establish thermal conductivity (λ), has a significant influence on the results. Also minimum number of measurements was determined for every phase of the composting process. No significant differences were reported between results, but certain changes in the value of λ were noted. In successive stages of the process, thermal conductivity of composted material were: 0.31 ± 0.09, 0.45 ± 0.14, 0.27 ± 0.03 and 0.37 ± 0.17 W m?1 K?1. |
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Keywords: | Heat transfer Thermal conductivity Hot-wire method Composting |
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