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Evaluation of engineering and economic feasibility of micro-hydropower plant project

机译：微水电站工程工程与经济可行性评价

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摘要

This paper presents an evaluation of engineering and economic feasibility of micro-hydropower plant project. The studied site is located at Thanthong village, Mea-On district, Chiang Mai province. The engineering feasibility studies in this project are using 4 different methods of rate of water flow, which are the average runoff from streamflow gauging station, flow rate from floats method, flow rate from current meter and Manning equation. The experimental and calculation results at 100% flow rate for hydropower generation installed capacities for hydropower plant of each method are 86, 44, 54 and 181 kW, respectively. In addition, this hydropower plant can generate power at 349, 175, 218, and 786 MWh per year, respectively. In term of economy feasibility, Manning equation method has the highest Internal Rate of Return (IRR) at 58.74%, which is comparted with streamflow gauging station method has IRR only at 25.23%. Consideration results of IRR and electric energy, it can be concluded that the accuracy of flow rate is a significant factor for evaluation of hydropower project. The accuracy of data could be collected data for long period of time as using in streamflow gauging station, not just only one year period as using in Manning equation. Therefore, the streamflow gauging station method is an appropriated tool for using in feasibility study of micro-hydropower plant project.
机译：本文介绍了微水电站工程工程和经济可行性的评价。学习的网站位于清迈省Mea-District的Thanthong Village。该项目的工程可行性研究采用4种不同的水流率，是流出测量站的平均径流，来自浮子法的流量，来自电流表的流速和曼宁方程。实验和计算结果在每种方法的水电站水电站的100％流动速率下，分别为86,44,54和181 kW。此外，该水电站分别可以分别为349,175,218和786米WWH产生功率。在经济可行性期间，Manning公式方法具有最高的内部返回率（IRR），58.74％，用流流量测量站方法进行独立式，只有25.23％。考虑IRR和电能的结果，可以得出结论，流速的准确性是水电项目评估的重要因素。可以在流流量测量站中使用的长时间收集数据的准确性，而不仅仅是在Manning方程中使用的一年。因此，流流量测量站方法是用于使用微水电站项目的可行性研究的互换工具。

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