Table 4. Temperature Distributions in the Coalbed for CCG and ECG Modes.

			TECG
Texp (°C)	P (x, y)a	TCCG (°C)	P = 400 W
800	(8.25, 15)	801	808
	(8.25, 0)	802	812
	(8.25, 30)	798	806
	(6, 15)	799	810
	(10.5, 15)	801	804
	Taverage	800.25	808
	Tsurface		852

^aCoordinates in the ECG coalbed and in the CCG coalbed are represented in Figure 11. The coordinates (8.25, 15) represent the center of the bed, and the unit is mm. T_ECG was measured in ECG mode with a power of 400 W, and the unit is °C.