Table 3 Thermal conductivity (κ), thermal resistance (R), overall heat transfer coefficient (U), temperature difference (ΔT) and heat transfer rate (Q) of GMT_0, GMT_0.01, GMT_0.03, GMT_0.05, and GMT_0.1 composites.
From: The Mechanical and Thermal Properties of Cement CAST Mortar/Graphene Oxide Composites Materials
Samples | Thermal conductivity (W/mK) | Thermal resistance (m2K/W) | Overall heat transfer coefficient (W/m2K) | Temperature difference (oC) | Heat transfer rate (W/min) | ||
|---|---|---|---|---|---|---|---|
20Â min | 30Â min | 20Â min | 30Â min | ||||
GMT_0 | 0.577 ± 0.007 | 0.087 | 11.556 | 276.20 | 270.58 | 0.793 | 0.523 |
GMT_0.01 | 0.568 ± 0.022 | 0.088 | 11.369 | 278.00 | 269.94 | 0.783 | 0.514 |
GMT_0.03 | 0.548 ± 0.025 | 0.091 | 10.972 | 278.92 | 271.84 | 0.757 | 0.498 |
GMT_0.05 | 0.512 ± 0.027 | 0.098 | 10.252 | 277.52 | 271.40 | 0.705 | 0.465 |
GMT_0.1 | 0.489 ± 0.025 | 0.102 | 9.792 | 277.48 | 270.78 | 0.674 | 0.443 |