Research Article

A New Algorithm of Parameter Estimation for the Logistic Equation in Modeling CO2 Emissions from Fossil Fuel Combustion

Table 1

Simulation results of each algorithm for each industrial sector.

1998199920002001200220032004200520062007MAPE (%)

AC
 REs0.2240.2240.2260.2290.2390.2430.2970.3040.3170.311
 A10.2220.2310.2410.250.260.2680.2770.2850.2940.3016.27
 A20.2210.2290.2380.2470.2560.2650.2740.2840.2930.3025.80
 A3*0.2220.2280.2340.2410.2490.2580.2680.2790.2920.3064.97
 NA0.2220.2280.2350.2420.250.2590.2690.2810.2930.3084.91
IC
 REs8.8928.8629.0069.1829.94511.76613.91615.57217.39518.807
 A18.4788.9869.5610.21410.96611.83912.86514.08815.57317.4116.93
 A2*8.6269.0389.51710.0810.7511.55912.55513.80715.42917.6076.91
 A38.6849.0569.49310.01610.64911.42812.40813.67415.36717.7366.93
 NA8.7359.1149.56310.09910.74911.55312.56613.8815.64618.1366.49
CC
 REs0.0580.0560.0590.0620.0650.0690.0780.0830.0870.088
 A10.0570.0590.0620.0650.0680.0710.0740.0780.0810.0864.43
 A20.0570.0590.0620.0640.0670.070.0730.0770.0810.0864.16
 A3*0.0570.0590.0610.0640.0660.0690.0730.0770.0810.0873.91
 NA0.0580.0590.0620.0640.0670.070.0730.0770.0820.0873.87
TSC
 REs0.4370.4970.5310.5420.5810.6610.780.8730.9761.086
 A10.4350.4740.5180.5680.6240.6890.7630.850.9511.0723.26
 A20.4350.4740.5180.5680.6240.6890.7630.8490.951.073.3
 A3*0.4370.4740.5170.5650.6210.6850.760.8490.9551.0852.95
 NA0.4370.4740.5170.5650.6210.6850.760.8490.9551.0862.95
WC
 REs0.0880.0940.090.0920.0950.1060.1180.1270.1350.145
 A10.0860.0890.0930.0970.1020.1080.1140.1210.130.144.07
 A20.0860.090.0930.0970.1020.1070.1140.1210.130.1413.97
 A3*0.0870.090.0930.0970.1010.1060.1120.120.130.1423.59
 NA0.0870.090.0930.0970.1010.1070.1130.1210.1310.1433.47
OC
 REs0.6930.6890.6740.6840.6790.7110.7520.7840.7830.782
 A10.6810.690.70.7090.7190.7280.7380.7470.7560.7662.99
 A20.680.690.6990.7080.7180.7270.7370.7460.7560.7662.95
 A3*0.6810.6870.6930.70.7080.7170.7270.7380.750.7642.82
 NA0.6840.690.6970.7040.7130.7220.7320.7440.7570.7722.67

* is the best algorithm of A1, A2, and A3.
AC: carbon emitted in agriculture, forestry, animal husbandry, fishery, and water conservancy; IC: carbon emitted in industry (including the electricity generation industry); CC: carbon emitted in construction; TSC: carbon emitted in transport, storage, and post; WC: carbon emitted in wholesale and retail trades; OC: carbon emitted in others.