1 | The following is an analysis of the efficiency of generating Hydrogen gas via the electrolosys of water and then generating electricity with that hydrogen gas with a hydrogen fuel cell. |
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1 | Input Parameters | ||||||||
|---|---|---|---|---|---|---|---|---|---|
2 | Pressure (atm) | 1.33 | |||||||
3 | Temperature (K) | 295.45 | |||||||
4 | Ideal Gas Constant | 0.0821 | |||||||
5 | Gibbs Free Energy (kJ/mol H2) | 237 | |||||||
6 | |||||||||
7 | Time | H2 Volume (mL) | Voltage (V) | Current (A) | Electrical Power (W) | Electrical Energy (J) | H2 Produced (Mol) | Chemical Energy (J) | Electrolyzer Efficiency |
8 | 0 | 0 | |||||||
9 | 60 | 4 | 11.94 | 0.66 | 7.88 | 472.82 | 2.19E-04 | 51.98 | 10.99% |
10 | 120 | 8 | 11.93 | 0.7 | 8.35 | 501.06 | 2.19E-04 | 51.98 | 10.37% |
11 | 180 | 14 | 11.92 | 0.75 | 8.94 | 536.40 | 3.29E-04 | 77.97 | 14.54% |
12 | 240 | 22 | 11.91 | 0.79 | 9.41 | 564.53 | 4.39E-04 | 103.96 | 18.42% |
13 | 300 | 28 | 11.89 | 0.84 | 9.99 | 599.26 | 3.29E-04 | 77.97 | 13.01% |
14 | |||||||||
15 | 0 | 28 | |||||||
16 | 60 | 34 | 11.9 | 0.82 | 9.76 | 585.48 | 3.29E-04 | 77.97 | 13.32% |
17 | 120 | 40 | 11.89 | 0.86 | 10.23 | 613.52 | 3.29E-04 | 77.97 | 12.71% |
18 | 180 | 46 | 11.88 | 0.9 | 10.69 | 641.52 | 3.29E-04 | 77.97 | 12.15% |
19 | 240 | 52 | 11.87 | 0.93 | 11.04 | 662.35 | 3.29E-04 | 77.97 | 11.77% |
20 | 300 | 58 | 11.86 | 0.95 | 11.27 | 676.02 | 3.29E-04 | 77.97 | 11.53% |
21 | |||||||||
22 | 0 | 58 | |||||||
23 | 60 | 65 | 11.86 | 0.97 | 11.50 | 690.25 | 3.84E-04 | 90.96 | 13.18% |
24 | 120 | 71 | 11.85 | 0.99 | 11.73 | 703.89 | 3.29E-04 | 77.97 | 11.08% |
25 | 180 | 78 | 11.85 | 1.01 | 11.97 | 718.11 | 3.84E-04 | 90.96 | 12.67% |
26 | 240 | 86 | 11.84 | 1.02 | 12.08 | 724.61 | 4.39E-04 | 103.96 | 14.35% |
27 | 300 | 92 | 11.84 | 1.04 | 12.31 | 738.82 | 3.29E-04 | 77.97 | 10.55% |
28 | |||||||||
29 | Average Efficiency | 12.71% |
1 | Input Parameters | |||||||
|---|---|---|---|---|---|---|---|---|
2 | Pressure (atm) | 1.33 | ||||||
3 | Temperature (K) | 295.45 | ||||||
4 | Ideal Gas Constant | 0.0821 | ||||||
5 | Gibbs Free Energy (kJ/mol H2) | 237 | ||||||
6 | ||||||||
7 | Time (sec) | H2 Vol (ml) | Voltage (V) | Current (A) | Moles H2 Used | Chemical Energy Used (J) | Electrical Energy Produced (J) | Fuel Cell Efficiency |
8 | 0.00 | 64.00 | ||||||
9 | 30.00 | 62.00 | 0.65 | 0.30 | 1.10E-04 | 25.99 | 5.88 | 22.61% |
10 | 60.00 | 60.00 | 0.64 | 0.28 | 1.10E-04 | 25.99 | 5.38 | 20.69% |
11 | 90.00 | 58.00 | 0.61 | 0.26 | 1.10E-04 | 25.99 | 4.78 | 18.40% |
12 | 120.00 | 56.00 | 0.23 | 0.12 | 1.10E-04 | 25.99 | 0.83 | 3.19% |
13 | ||||||||
14 | 0.00 | 42.00 | ||||||
15 | 30.00 | 40.00 | 0.66 | 0.31 | 1.10E-04 | 25.99 | 6.14 | 23.62% |
16 | 60.00 | 39.00 | 0.64 | 0.11 | 5.48E-05 | 12.99 | 2.12 | 16.30% |
17 | 90.00 | 37.00 | 0.60 | 0.29 | 1.10E-04 | 25.99 | 5.19 | 19.98% |
18 | 120.00 | 36.00 | 0.17 | 0.10 | 5.48E-05 | 12.99 | 0.51 | 3.95% |
19 | ||||||||
20 | 0.00 | 27.00 | ||||||
21 | 30.00 | 25.00 | 0.66 | 0.30 | 1.10E-04 | 25.99 | 5.95 | 22.89% |
22 | 60.00 | 23.00 | 0.65 | 0.28 | 1.10E-04 | 25.99 | 5.44 | 20.94% |
23 | 90.00 | 22.00 | 0.63 | 0.13 | 5.48E-05 | 12.99 | 2.45 | 18.85% |
24 | 120.00 | 21.00 | 0.24 | 0.14 | 5.48E-05 | 12.99 | 1.00 | 7.69% |
25 | ||||||||
26 | Average Efficiency | 16.59% |