New formulae for efficiency scaling-up from model to prototype of a hydraulic turbine are presented based on the theoretical analysis that considers the only friction losses through the turbine. Two formulae are presented; one is the precise conversion formula, and the other the simplified ...
4) turbine volumetric efficiency 水轮机的容积效率5) hydraulic efficiency 水力效率 1. Computational fluid dynamics (CFD) technique was used to simulate the hydraulic efficiency of the ozone contactor in a water treatment plant, Shenzhen and to optimize the ozonation system by calculating retention ...
In this work, we theoretically analyzed the main factors affecting performance of multistage energy recovery hydraulic turbine (MERHT), and found that the arc radius (r) of the edge at the outlet section of the runner guide vane is the determining factor of the hydraulic efficiency of hydraulic...
A hydraulic turbine is a type of turbine that harnesses the kinetic and potential energy of water to generate mechanical energy. This energy then drives a generator, which converts it into electrical energy. In essence, the entire process revolves around transforming the energy inherent in water f...
The flow rate measurements are the most difficult part of efficiency tests on prototype hydraulic turbines. Among the numerous flow rate measurement methods, the Winter Kennedy method is preferred for measuring turbine flow rates, since it is convenient, practical and economical. This paper describes ...
[translate] aThermal battery internal and external temperatures. 热量电池内部和外在温度。[translate] ajack find the way 起重器发现方式[translate] ahydraulic efficiency 水力效率[translate]
Hard sediment particles, which are carried by rivers and reach the turbine, erode the surface in contact. This causes the change in runner profile with unevenly reduced mass, which causes loss in efficiency, vibrations and reduced life of turbine. Financial loss associated with this problem is ...
Teaching of manipulator for repairing hydraulic turbine; 水轮机导叶修复用机械手的示教 5) water circulating wheel 循环水轮 1. Aimed at the biochemical technology of sewage treatment by biological rotating disk,a water circulating wheel has been designed to improve the treatment efficiency of biological...
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...
The tedious calculating, finding in table and deciding of parameters all will consume the valuable labor of engineers. This paper will discuss an intelligent large-scale hydraulic turbine type design system, which has raised the engineers' design efficiency.关键词: hydraulic turbine type design expert...