The most renewable energy used in Indonesia is coming from hydro energy. The hydroudenergy available in Indonesia is about75000-76000MW. From the whole water energyudavailable in Indonesia there was just about 3,783MW being harnest for large scaleudpower plants and about 220 MW for small-scale power plants. One of the small-udscale hydro energy sources is from a small river which has a water speed range betweenud0.01 m/s to 2.8 m/s. Although having only a low water speed, the energy stored in it hasuda potential power to generate electricity. This low speed water flow usually used toudmove a water wheel to convert the water energy to another form of energy. The waterudflow hit directly to the water wheel blade which will force the water wheel runner toudmove and rotate so that the water kinetic energy would be converted to a mechanicaludenergy to rotate a generator to produce electricity. Water flow has a potential renewableudenergy and it is environmentally friendly. This water flow potential energy could beudconverted to another form of energy such as mechanical energy, kinetic energy orudelectrical energy. Implementing water turbines is one way to convert the potential waterudenergy to another form of energy. Most of undercurrent sources of hydropower wereudnot observed seriously. However, there were some undercurrent water turbines researchudbut it is not much. Therefore, the objective of this study is to find the best performanceudof a flat bladed undercurrent water turbine. The experiment was observed byudimplementing different blade numbers on a particular water flow rate. The study wasudconducted in experimental and theoretical analysis by implementing a blade number ofud4, 6, and 8 blades. The water flow rate was maintained constant at0.0594m3/s. Theudresults showed that for the flat plate bladed turbine efficiency increases with theudincreasing of blade numbers. The maximum efficiency was achieved on the turbineudwith a blade number of 6. Furthermore, the turbine efficiency decreases when theudnumber of blades is less than 6 blades.
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机译：印度尼西亚使用的最可再生能源来自水能。印尼可利用的水能/核能约为75000-76000MW。从印度尼西亚可利用的全部水能来看，大型电力发电厂的最大发电量约为3,783MW，小型电力发电厂的最大发电量约为220MW。小规模/超大规模的水力能源之一来自一条小河流，其水速范围介于ud0.01 m / s至2.8 m / s之间。尽管水速很低，但是其中存储的能量具有 u b u200b u200b u200b电力发电。这种低速水流通常用于去除水轮，以将水能转换为另一种形式的能量。水溢出直接撞击到水轮叶片上，这将迫使水轮转轮运动并旋转，从而水动能将转换为机械能，从而使发电机旋转以发电。水流具有潜在的可再生能源，对环境无害。该水流势能可以被转换成另一种形式的能量，例如机械能，动能或电能。实施水轮机是将潜在的水能转化为另一种形式的能源的一种方法。没有认真观察到大多数暗流水电资源。但是，有一些暗流式水轮机的研究，但并不多。因此，本研究的目的是找到平头潜流水轮机的最佳性能。通过在特定的水流量上使用不同的叶片数量来观察该实验。通过实施 ud4、6和8个刀片的刀片数量，在实验和理论分析中进行了此项研究。水流速保持恒定在0.0594m3 / s。结果表明，对于平板叶片式涡轮机，效率随着叶片数量的增加而增加。在叶片数为6的涡轮机上实现了最大效率。此外，当叶片的数量少于6个时，涡轮机效率会降低。
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