scholarly journals 401 Study on Axial Flow Hydraulic Turbine with Collection Device

2012 ◽  
Vol 2012.20 (0) ◽  
pp. 93-94
Author(s):  
Kaoru OKUBO ◽  
Hironobu IWAMOTO ◽  
Yasuyuki NISHI ◽  
Terumi INAGAKI ◽  
Norio KIKUCHI
Keyword(s):  
Axial Flow ◽  
Hydraulic Turbine ◽  
Collection Device

scholarly journals Study on an Axial Flow Hydraulic Turbine with Collection Device

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Yasuyuki Nishi ◽  
Terumi Inagaki ◽  
Kaoru Okubo ◽  
Norio Kikuchi
Keyword(s):  
Velocity Ratio ◽  
Axial Flow ◽  
Hydraulic Turbine ◽  
Power Coefficient ◽  
Speed Ratio ◽  
Maximum Output ◽  
Recovery Coefficient ◽  
Composite Body ◽  
Inlet Velocity ◽  
Collection Device

We propose a new type of portable hydraulic turbine that uses the kinetic energy of flow in open channels. The turbine comprises a runner with an appended collection device that includes a diffuser section in an attempt to improve the output by catching and accelerating the flow. With such turbines, the performance of the collection device, and a composite body comprising the runner and collection device were studied using numerical analysis. Among four stand-alone collection devices, the inlet velocity ratio was most improved by the collection device featuring an inlet nozzle and brim. The inlet velocity ratio of the composite body was significantly lower than that of the stand-alone collection device, owing to the resistance of the runner itself, the decreased diffuser pressure recovery coefficient, and the increased backpressure coefficient. However, at the maximum output tip speed ratio, the inlet velocity ratio and the loading coefficient were approximately 31% and 22% higher, respectively, for the composite body than for the isolated runner. In particular, the input power coefficient significantly increased (by approximately 2.76 times) owing to the increase in the inlet velocity ratio. Verification tests were also conducted in a real canal to establish the actual effectiveness of the turbine.

313 Effect of Number of Blades on Performance of an Axial Flow Hydraulic Turbine with a Collection Device

2013 ◽  
Vol 2013.21 (0) ◽  
pp. 127-128
Author(s):  
Kaoru Okubo ◽  
Yasuyuki Nishi ◽  
Sou Hirama ◽  
Terumi Inagaki ◽  
Yukio Kikuchi
Keyword(s):  
Axial Flow ◽  
Hydraulic Turbine ◽  
Collection Device

S051011 Development of Axial Flow Hydraulic Turbine with Collection Device

2012 ◽  
Vol 2012 (0) ◽  
pp. _S051011-1-_S051011-5
Author(s):  
Hironobu IWAMOTO ◽  
Yasuyuki Nishi ◽  
Terumi INAGAKI ◽  
Kaoru OKUBO ◽  
Norio KIKUCHI
Keyword(s):  
Axial Flow ◽  
Hydraulic Turbine ◽  
Collection Device

Performance characteristics of axial flow hydraulic turbine with a collection device in free surface flow field

2017 ◽  
Vol 112 ◽  
pp. 53-62 ◽  
Author(s):  
Yasuyuki Nishi ◽  
Genki Sato ◽  
Daishi Shiohara ◽  
Terumi Inagaki ◽  
Norio Kikuchi
Keyword(s):  
Free Surface ◽  
Flow Field ◽  
Axial Flow ◽  
Free Surface Flow ◽  
Hydraulic Turbine ◽  
Surface Flow ◽  
Performance Characteristics ◽  
Collection Device

Effect of the Flow Rate on Performance Characteristics of an Axial Flow Hydraulic Turbine with a Collection Device

2018 ◽  
Vol 2018.26 (0) ◽  
pp. 319
Author(s):  
Hiroto SASASHITA ◽  
Yasuyuki NISHI ◽  
Daishi SHIOHARA ◽  
Terumi INAGAKI ◽  
Norio KIKUCHI
Keyword(s):  
Flow Rate ◽  
Axial Flow ◽  
Hydraulic Turbine ◽  
Performance Characteristics ◽  
Collection Device

scholarly journals A study of the flow field of an axial flow hydraulic turbine with a collection device in an open channel

2019 ◽  
Vol 130 ◽  
pp. 1036-1048 ◽  
Author(s):  
Yasuyuki Nishi ◽  
Genki Sato ◽  
Daishi Shiohara ◽  
Terumi Inagaki ◽  
Norio Kikuchi
Keyword(s):  
Flow Field ◽  
Open Channel ◽  
Axial Flow ◽  
Hydraulic Turbine ◽  
Collection Device

scholarly journals Study on Performance Improvement of an Axial Flow Hydraulic Turbine with a Collection Device

2016 ◽  
Vol 9 (1) ◽  
pp. 47-55 ◽  
Author(s):  
Yasuyuki Nishi ◽  
Terumi Inagaki ◽  
Yanrong Li ◽  
Sou Hirama ◽  
Norio Kikuchi
Keyword(s):  
Performance Improvement ◽  
Axial Flow ◽  
Hydraulic Turbine ◽  
Collection Device

421 Free Surface Flow Analysis of an Axial Flow Hydraulic Turbine with a Collection Device

2014 ◽  
Vol 2014.24 (0) ◽  
pp. 186-189
Author(s):  
Sou Hirama ◽  
Yasuyuki Nishi ◽  
Terumi Inagaki ◽  
Yanrong Li ◽  
Norio Kikuchi
Keyword(s):  
Free Surface ◽  
Flow Analysis ◽  
Axial Flow ◽  
Free Surface Flow ◽  
Hydraulic Turbine ◽  
Surface Flow ◽  
Collection Device

0709 Experimental Study on an Axial Flow Hydraulic Turbine with a Collection Device

2014 ◽  
Vol 2014 (0) ◽  
pp. _0709-1_-_0709-3_
Author(s):  
Sou HIRAMA ◽  
Yasuyuki NISHI ◽  
Terumi INAGAKI ◽  
Yanrong LI ◽  
Norio KIKUCHI
Keyword(s):  
Experimental Study ◽  
Axial Flow ◽  
Hydraulic Turbine ◽  
Collection Device

0524 The Flow Field of an Axial Flow Hydraulic Turbine with a Collection Device Based on PIV Measurement and Numerical Analysis

2015 ◽  
Vol 2015 (0) ◽  
pp. _0524-1_-_0524-4_
Author(s):  
Genki SATO ◽  
Yasuyuki NISHI ◽  
Terumi INAGAKI ◽  
Yanrong LI ◽  
Sou HIRAMA ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Flow Field ◽  
Axial Flow ◽  
Hydraulic Turbine ◽  
Collection Device ◽  
Piv Measurement
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