Parameter Value Reference Temperature, T 308 K This work Transport number of cation in the solution,2+, 0.4387 This work [5] Transport number of anion in the solution, 0.5613 This work [5] Diffusivity of Ca2+ ions in solution at 20°C 7.92×10-10 m2.s-1 This work [25,26] Diffusivity of Cl- ions in solution at 20°C, 17.7×10-10 m2.s-1 [5] Diffusivity of CaCl2 through AEM 1.8×10-11 m2.s-1 [30] Diffusivity of CaCl2 through CEM 1.8 × 10-11 m2.s-1 [30] Distance between adjacent membranes 4.7 × 10-3 m This work Area of the membrane, Am 32 × 10-4 m2 This work Charge on the Calcium ion,2+ 2 This work Current efficiency, 0.81 This work Sh number empirical equation constant, a 0.0583 ± 0.0045 This work Sh number empirical equation constant, b 0.63  This work [24] Sh number empirical equation constant, c 0.33  This work [24] Sh number empirical equation constant, d -0.131 This work

Table 3: Values of different physical parameters used in the model.