Dynamic Heating System of Multiphase Flow Digester by Solar-Untreated Sewage Source Heat Pump

Table 6

Minimum length of the sewage double-pipe heat exchanger and the solar collector area under the different solar fractions in different modes.

	Mode 1		Mode 2
	(m)	(m^2)	(m)	(m^2)
0.1	1.84	25.27	4.27	29.43
0.2	1.63	50.55	3.80	59.86
0.3	1.43	75.82	3.32	88.29
0.4	1.22	101.1	2.85	117.72
0.5	1.02	126.37	2.37	147.15
0.6	0.82	151.64	1.90	176.58
0.7	0.61	176.92	1.42	206.02
0.8	0.41	202.19	0.95	235.45
0.9	0.20	227.47	0.47	264.88
Standard deviation	0.56	69.22	1.30	80.47