The Assessment of Hydrogen Energy Systems for Fuel Cell Vehicles Using Principal Component Analysis and Cluster Analysis

Table 1

The environmental, economic, and energy performance of the 11 scenarios [7].

Aspect	Environment								Economic	Energy
Criterion	SO2	CO2	NO𝑥	CO	CH4	Dust	Waste water	Waste solids	Costs	Energy
Unit	kg	kg	kg	kg	kg	kg	kg	kg	¥	MJ
Option 1	0.062	16.659	0.059	0.022	0.072	0.224	1011	4783	15.18	185.17
Option 2	0.053	15.761	0.048	0.020	0.072	0.188	822	3884	23.56	176.68
Option 3	0.160	26.573	0.103	0.019	0.074	0.623	2950	13994	18.56	219.66
Option 4	0.182	28.222	0.114	0.023	0.072	0.706	3350	15880	24.22	222.95
Option 5	0.130	37.664	0.084	0.016	0.000	0.453	2124	10071	19.84	294.26
Option 6	0.132	37.807	0.079	0.014	0.000	0.461	2144	10163	28.84	289.53
Option 7	0.232	48.243	0.130	0.013	0.000	0.865	4122	19562	23.43	331.96
Option 8	0.252	49.257	0.140	0.017	0.000	0.941	4488	21285	28.95	331.96
Option 9	0.616	59.532	0.316	0.020	0.000	2.475	11882	56340	41.66	683.47
Option 10	0.616	59.537	0.316	0.020	0.000	2.475	11883	56343	25.07	683.48
Option 11	0.083	21.244	0.074	0.021	0.110	0.275	1277	6011	14.68	270.74

¥ represents Yuan which is the basic monetary unit of China, 1 Yuan = 0.16 $.