Enhanced Heat Transfer Characteristics of Graphite Concrete and Its Application in Energy Piles

Table 3

Total thermal resistance for different graphite volumetric contents (mKW⁻¹).

Environmental temperature	0% graphite	5% graphite	10% graphite	15% graphite	25% graphite
10°C	0.444	0.458	0.453	0.409	0.370
20°C	0.436	0.441	0.429	0.405	0.365
30°C	0.413	0.425	0.423	0.397	0.349
40°C	0.401	0.411	0.395	0.381	0.328