The tailrace, or draft tube, is the final key component of a hydraulic turbine system. It is the conduit through which water is led away from the turbine after it has imparted its kinetic and potential energy to the turbine’s vanes. The design of the tailrace is critical as it directl...
hydraulic power 力;能 hydraulic fracturing 致裂;力裂法 hydraulic engineering 工程;工程;力工程学 hydraulic support 支架 hydraulic model 工模型,力模型 hydraulic pump 泵,力泵 hydraulic turbine 轮机;力透 hydraulic machinery 力机械 hydraulic calculation 力计算 hydraulic transmission 传动;力传动 hydraulic mach...
Notes: ACMP, Alternating current motor pump; ADP, Air driven pump; EDP, Engine driven pump; PTU, Power transfer unit; RAT, Ram air turbine. Show moreView chapterExplore book Related terms: Hydraulics Energy Engineering Hydroelectric Energy Battery (Electrochemical Energy Engineering) Hydraulic Accumula...
The equivalent equation to describe the power consumed by a pump is given as Eq. (2). The efficiency of the pump operating as a turbine is always less than that when operating as a pump. The difference between the power consumed by the pump and the work produced by the turbine is the...
To simulate the hydraulic fracture more effectively, a fully hydro-mechanical coupled equation is established for the cracked element. It can account for the interactions between the mechanical field and the hydraulic field in a cracked element. The KGD verification suggests that this method is ...
Harris Formula for Pressure Change at Standard Conditions Equation and Calculator Head Changes Caused by Pipe Size Enlargement Formula and Calculator Head Changes Caused by Pipe Size Sudden Reduction Formula and Calculator Hydraulic Turbine Actual Power Formula and Calculator Hydraulics Field Manual and Trai...
The water fluid film within the bearings is modeled using Reynolds equation, which provides a reduced form of the Navier–Stokes equation. 5. The fluid forces of the pump and the turbine are computed based on computational fluid dynamics, specifically at the optimum fluid efficiency point, and...
The minimum level would be governed by operating requirements and by the economic balance between the value of the developed head at the site and at the downstream places.The relation between draw down and minimum head should be such that a reasonable turbine efficiency will be maintained through...
A water turbine or wheel operates with a large change in the kinetic energy of water; they are hydrodynamic devices. Specifically, the use of hydraulics (or pressure hydraulics) for power transmission will be considered here. Power transmission is the result of the force of a confined liquid. ...
The driver of the pump, which may be an electric motor, a turbine, or a diesel engine, must provide enough power to the pump. Based on the driver efficiency, its power will be more than the pump power calculated. An electric drive motor may have an efficiency of 95%, which can be ...