Project Development and Results
Documenting Results
The outcomes of this project must give a recommendation of percentage of alum and magnesium sulpfate that must be mixed with distilled water to get maximum performance of the battery based on these parameters:
- Amount of alum added in distilled water
- Amount of magnesium sulfate added in distilled water
- Time taken to completely charge the battery. The results must be documented in intervals of 10 minutes and percentage of battery charge.
- Time taken to discharge the battery. The results must be documented in intervals of 10 minutes and percentage of battery charge.
Sample report
Electrolyte 1 [150 grams MGSO4 + 500 grams Alum + 1 liter of distilled water] - CHARGING/DISCHARGING
| Percentage | Time | Time | Percentage |
| 10% | 00:10 hrs | 1:00 hr | 18% |
| 20% | 01:15 hrs | 2:00 hr | 28% |
| 30% ---- | 02: 22 hrs | 3:00 hr ---- | 34% |
| ----- 100% | 11:45 hrs | --- 12:00 hrs | 100% |
Notes:
- When starting the project, start with a fully saturated electrolyte in 1 liter of distilled water (max saturation electrolyte).
- Reduce the saturation in subsequent trials by adding different quantities of distilled water to each trial.
Publishing Recommendations
A detailed report of the recommendation must accompany the results. The recommendation must specify the following:
- Quantity of chemicals per liter of distilled water
- Fastest and slowest charging time
- Fastest and lowest discharging time
- Energy density of the resultant battery
- Precautions on handling components, battery, chemicals, charging stations and testing and measuring equipment