Enhanced genetic algorithm optimization model for a single reservoir operation based on hydropower generation: case study of Mosul reservoir, northern Iraq

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Table 3 Determination of the statistical parameters for the values of objective function obtained relying on the population size and number of generations, using the second algorithm

No. of cases	Population size	No. of generations	Mean	SD	Max	Min	Avr. of Exec. time (min)
1	250	250	2962	16.9	2993	2937	2
2	500	250	2971	11.7	2984	2947	4
3	750	250	2974	11.6	2991	2955	5
4	1000	250	2985	8.9	3002	2971	7
5	1250	250	2979	11.3	3002	2961	9
6	1500	250	2980	10.7	3000	2963	11
7	1000	500	2983	11.3	2994	2958	15
8	1000	1000	2986	10.7	2999	2971	29
9	1000	2000	2993	12.5	3005	2973	57
10	1000	3000	2996	8.4	3008	2983	85
11	1000	4000	2996	12.6	3007	2971	112
12	1000	5000	2996	10.2	3009	2973	144
13	1000	6000	2999	7.3	3006	2982	173

The italics indicate to the population size and number of generations which were selected, using the second algorithm