Performance of undershot waterwheel in pico scale with difference in the blades number
Journal of the Brazilian Society of Mechanical Sciences and Engineering - Tập 44 - Trang 1-10 - 2022
Tóm tắt
Undershot waterwheels (USWW) are recommended as a power plant for remote or rural areas because of their construction simplicity. The USWW is considered old technology; while the characteristics of its technology are not yet comprehensive, the effect of the number of blades on its performance is debatable. This study investigated the effect of the blade number on pico scale USWW performance and the hydraulic behaviors due to rotational speed of wheel by computational and validated with experimental data. The four blade numbers investigated were 8, 12, 16, and 20 blades. The relation of blade number to USWW performance is parabolic and can express using empirical laws. The empirical laws can predict performance change by blade’s number and identify the optimum blade's number at 16 blades.
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