Optimizing Rainwater Harvesting Systems by Analyzing Catchment Area and Storage Capacity

This study investigates the efficiency of an optimized rainwater harvesting system integrated with a filtration unit and micro-hydro turbine. The pre-experimental research revealed that the system successfully captured 0.625 gallons of rainwater out of a 5-gallon container, although the turbine produced varying voltage outputs (4.08V, 4.06V, and 3.62V) with a maximum of 9V, falling short of the expected 12V due to fluctuations in water flow and pressure. Despite this, the filtration system significantly improved the pH level of the water, from 5.67 (before filtration) to 6.14 (after), with a paired sample T-test confirming statistical significance (p = 0.006), ensuring the water’s safety for household use but not potability because only pH level was tested. The system operated efficiently during automation, though minor leaks required adjustments. The study addresses key issues related to water collection, energy generation, and filtration efficiency, highlighting areas for further improvement, particularly turbine performance and water pressure optimization. The study demonstrates the potential of integrating renewable energy with rainwater harvesting to provide sustainable water and power solutions. While the filtration system successfully improved pH levels for non-potable household use, further research is needed to optimize filtration, enhance turbine performance to meet voltage expectations, and develop automation for real-time monitoring. The study's limitations include the small-scale prototype, limited water quality evaluation (only pH), and insufficient turbine output. Future research should focus on improving system durability, energy generation, and scalability for broader applications in residential and community settings. Enhancing cost-effectiveness and adaptability will be key to large-scale adoption.本研究针对集成过滤单元（filtration unit）与微型水轮机（micro-hydro turbine）的优化型雨水收集系统的效能展开探究。前期预实验结果显示，该系统可从5加仑容器中成功采集0.625加仑雨水，但水轮机的电压输出存在波动（4.08V、4.06V与3.62V），最高可达9V，受水流与压力波动影响，未达到预期的12V输出。尽管存在上述不足，过滤系统可显著改善水体pH值，从过滤前的5.67提升至过滤后的6.14，配对样本t检验证实该差异具有统计学意义（p=0.006），可保障水体满足家用安全要求，但因仅检测了pH值，尚不具备饮用安全性。该系统在自动化运行阶段表现高效，但存在少量渗漏问题，需进行调试优化。本研究针对雨水收集、能源产出与过滤效能相关的核心问题展开分析，指明了后续优化方向，尤其聚焦于水轮机性能与水压优化领域。本研究证实了将可再生能源与雨水收集系统相结合，可提供可持续水资源与电力解决方案的潜力。尽管过滤系统成功提升了水体pH值，可满足非饮用家用需求，但仍需开展进一步研究以优化过滤工艺、提升水轮机性能以达成预期电压目标，并开发用于实时监测的自动化系统。本研究的局限性包括原型规模较小、水质评价维度有限（仅检测pH值）以及水轮机输出不足。未来研究应聚焦于提升系统耐用性、能源产出能力与可扩展性，以适配住宅与社区场景的更广泛应用。提升成本效益与环境适配性将是实现大规模推广的关键。