Hydraulic machines. Acceptance tests of small hydroelectric installations

2015 ◽  
Keyword(s):  
Hydraulic Machines ◽  
Acceptance Tests

Transferring Methods of Efficiency for Hydraulic Machines Using Model Based on Smooth-Pipes Flow

2008 ◽  
Author(s):  
Li Long ◽  
Ze Wang ◽  
Xuelin Yang ◽  
Dan Li
Keyword(s):  
Reynolds Number ◽  
Scale Effects ◽  
Head Loss ◽  
Computational Method ◽  
Prototype Model ◽  
Hydraulic Efficiency ◽  
Number Range ◽  
Model Based ◽  
Hydraulic Machines ◽  
Acceptance Tests

The scope of Reynolds number in the model experiment and the serviceability on Blasius friction factor equation were analyzed. The exponent of prototype–model scale and the proper distribution of the friction and vortex head loss in Moody’s formula were studied. It was consider that the friction head loss could not be reduced with the accession of vortex head loss. New conversion method of hydraulic efficiency for prototype pump performance using model based on Prandtl-Colebrook formula with a wide Reynolds number range and Nikuradse’s experiments to be consistent with was proposed The conversion results was compared with IEC 60995:1991, JIS B 8327:2002 methods. It is indicated that Prandtl-Colebrook formula has advantage of the strongly theoretical elements, the simply computational method and the high computation precision. It can be becoming to confirm of the prototype hydraulic efficiency from model acceptance tests of hydraulic machines with consideration of scale effects.

SUBSTANTIATION OF THE LOCATION OF WINDOWS OF DISTRIBUTION SYSTEMS OF PLANETARY HYDRAULIC MACHINES

2019 ◽  
Vol 19 (4) ◽  
pp. 3-20
Author(s):  
А.І. Панченко ◽  
◽  
А.А. Волошина ◽  
І.А. Панченко ◽  
С.І. Пастушенко ◽  
...  
Keyword(s):  
Distribution Systems ◽  
Hydraulic Machines

IMPROVING THE OUTPUT CHARACTERISTICS OF PLANETARY HYDRAULIC MACHINES

2019 ◽  
Vol 19 (2) ◽  
pp. 68-85
Author(s):  
А.І. Панченко ◽  
◽  
А.А. Волошина ◽  
І.А. Панченко ◽  
А.І. Засядько ◽  
...  
Keyword(s):  
Hydraulic Machines ◽  
Output Characteristics
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