A study on the effect of blade inlet angle, attack angle and the diameter ratio on the efficiency of a Banki Mitchell turbine

In the present work, a theoretical investigation is presented on how the efficiency of a Banki Mitchell turbine is affected by its design parameters. With the help of general formulation of the control volume theory to the equation of the moment of momentum in the turbine’s runner and considering all assumption regarding the properties of the flow and the design geometry of the runner, a mathematical model has been developed. The water discharge through the turbine is considered incompressible, non-viscous, homogenous and steady flow; The loss due to shock on the inner and outer surface of the runner as well as leakage losses are neglected. As results of the present study, the behaviour of hydraulic efficiency was determined when varying the angle of attack, the blade entry angle as well as the runner diameter ratio, indicating their appropriate values in each different scenario. In this paper critical relationships between design parameters have been disclosed and therefore analysed and simulated using Simulink MATLAB. Furthermore, it was mentioned that for a better performance, the exit angle of the blade should be 90°. At length, an expression was given estimating the turbine’s efficiency at various operating conditions and for calculating the energy contribution per stage, respectively.
Keywords:

Banki Mitchell Turbine, Fluid Mechanics Analysis, Control Volume Theory Efficiency.,

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 Bibtex @araştırma makalesi { ijeat998333, journal = {International Journal of Energy Applications and Technologies}, eissn = {2548-060X}, address = {editor.ijeat@gmail.com}, publisher = {İlker ÖRS}, year = {2021}, volume = {8}, number = {3}, pages = {122 - 131}, doi = {10.31593/ijeat.998333}, title = {A study on the effect of blade inlet angle, attack angle and the diameter ratio on the efficiency of a Banki Mitchell turbine}, key = {cite}, author = {Nıyıgena, Hırwa Jean Paul} } APA Nıyıgena, H. J. P. (2021). A study on the effect of blade inlet angle, attack angle and the diameter ratio on the efficiency of a Banki Mitchell turbine . International Journal of Energy Applications and Technologies , 8 (3) , 122-131 . DOI: 10.31593/ijeat.998333 MLA Nıyıgena, H. J. P. "A study on the effect of blade inlet angle, attack angle and the diameter ratio on the efficiency of a Banki Mitchell turbine" . International Journal of Energy Applications and Technologies 8 (2021 ): 122-131 < Chicago Nıyıgena, H. J. P. "A study on the effect of blade inlet angle, attack angle and the diameter ratio on the efficiency of a Banki Mitchell turbine". International Journal of Energy Applications and Technologies 8 (2021 ): 122-131 RIS TY - JOUR T1 - A study on the effect of blade inlet angle, attack angle and the diameter ratio on the efficiency of a Banki Mitchell turbine AU - Hırwa Jean PaulNıyıgena Y1 - 2021 PY - 2021 N1 - doi: 10.31593/ijeat.998333 DO - 10.31593/ijeat.998333 T2 - International Journal of Energy Applications and Technologies JF - Journal JO - JOR SP - 122 EP - 131 VL - 8 IS - 3 SN - -2548-060X M3 - doi: 10.31593/ijeat.998333 UR - Y2 - 2021 ER - EndNote %0 International Journal of Energy Applications and Technologies A study on the effect of blade inlet angle, attack angle and the diameter ratio on the efficiency of a Banki Mitchell turbine %A Hırwa Jean Paul Nıyıgena %T A study on the effect of blade inlet angle, attack angle and the diameter ratio on the efficiency of a Banki Mitchell turbine %D 2021 %J International Journal of Energy Applications and Technologies %P -2548-060X %V 8 %N 3 %R doi: 10.31593/ijeat.998333 %U 10.31593/ijeat.998333 ISNAD Nıyıgena, Hırwa Jean Paul . "A study on the effect of blade inlet angle, attack angle and the diameter ratio on the efficiency of a Banki Mitchell turbine". International Journal of Energy Applications and Technologies 8 / 3 (Eylül 2021): 122-131 . AMA Nıyıgena H. J. P. A study on the effect of blade inlet angle, attack angle and the diameter ratio on the efficiency of a Banki Mitchell turbine. IJEAT. 2021; 8(3): 122-131. Vancouver Nıyıgena H. J. P. A study on the effect of blade inlet angle, attack angle and the diameter ratio on the efficiency of a Banki Mitchell turbine. International Journal of Energy Applications and Technologies. 2021; 8(3): 122-131. IEEE H. J. P. Nıyıgena , "A study on the effect of blade inlet angle, attack angle and the diameter ratio on the efficiency of a Banki Mitchell turbine", , c. 8, sayı. 3, ss. 122-131, Eyl. 2021, doi:10.31593/ijeat.998333