Results 211 to 220 of about 805,835 (276)

Investigations of the thermodynamic entropy evaluation in a hydraulic turbine under various operating conditions

, 2021
A. Yu, Q. Tang, Huixiang Chen, Daqing Zhou   +3 more
semanticscholar   +1 more source

Cavitation in Hydraulic Turbines

1962
The most common and troublesome maintenance problem encountered with hydraulic turbines is the erosion caused by cavitation. A study of the cavitation phenomenon has demonstrated that the pressure produced by the collapse of cavitation bubbles is sufficient to cause mechanical erosion of all known materials. However, the resistance to cavitation damage
openaire   +1 more source

Hydraulic Turbines

2003
  +5 more sources

Hydraulic Turbine Prime Movers

2009
This chapter contains sections titled: Introduction The Impulse Turbine The Reaction Turbine Propeller-Type Turbines The Deriaz Turbine Conduits, Surge Tanks, and Penstocks Hydraulic System Equations Hydraulic System Transfer Function Simplifying Assumptions Block Diagram for a Hydro System
openaire   +1 more source

Investigation on the relationship between hydraulic loss and vortex evolution in pump mode of a pump-turbine

Journal of Hydrodynamics, 2022
Yong-lin Qin, Deyou Li, Hong-jie Wang, Zhanyi Liu, Xianzhu Wei, Xiao-hang Wang   +5 more
semanticscholar   +1 more source

Cavitation of Hydraulic-Turbine Runners

Journal of Fluids Engineering, 1940
Abstract This paper contains a brief analytical discussion of runner cavitation. The I. P. Morris cavitation equipment is described, and results with this apparatus are compared with those of the Holtwood laboratory. A calibration gage in the development stage is also described.
openaire   +1 more source

Submergence Factors for Hydraulic Turbines

Journal of Energy Engineering, 1989
The elevation of a hydroelectric turbine above or below tailwater is based on hydraulic model studies to determine the critical sigma, defined as the ratio of barometric pressure plus submergence depth at which cavitation commences divided by the rated head.
openaire   +1 more source

Chemical and Reactive Transport Processes Associated with Hydraulic Fracturing of Unconventional Oil/Gas Shales

Chemical Reviews, 2022
Adam D Jew, Jennifer Druhan, Anthony Kovscek   +2 more
exaly  

Index Testing of Hydraulic Turbines

Journal of Fluids Engineering, 1951
Abstract The object of this paper is (a) to bring to the attention of operating companies the benefits derived from index tests of hydraulic turbines, and especially those of the adjustable-blade propeller or Kaplan type; (b) to enumerate and discuss the presently known methods of determining relative discharge and hence relative ...
openaire   +1 more source

Application of Improved Whale Optimization Algorithm in Parameter Identification of Hydraulic Turbine at No-Load

The Arabian journal for science and engineering, 2020
Tian Tian, Wei Zhao, W. Zhen, Changyu Liu   +3 more
semanticscholar   +1 more source