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Etaeval Xprt Equipment & Supplies
9 equipment items found
Manufactured by:Etaeval GmbH based inHorw, SWITZERLAND
Index measurements are carried out to determine the relative efficiency (index efficiency) of hydraulic machines. The procedures for index measurements and the different approaches are described in the IEC (International Electrotechnical Commission) standard 60041 "field acceptance tests to determine the hydraulic performance of hydraulic turbines, storage pumps and pump turbines". This standard ...
Manufactured by:Etaeval GmbH based inHorw, SWITZERLAND
Noise emission guarantees are often part of contracts in case of new or revised hydraulic machines in hydro power or water supply ...
Manufactured by:Etaeval GmbH based inHorw, SWITZERLAND
Pelton jet visualization is a diagnosis tool for vertical and horizontal Pelton turbines. There is a strong correlation of turbine efficiency with jet dispersion and jet quality. ...
Manufactured by:Etaeval GmbH based inHorw, SWITZERLAND
Flow rate measurements with propeller type current meters. In case of short intakes, open channel flows, and also closed conduits propeller type current meter can be used. The procedures are described in the IEC (International Electrotechnical Commission) standard 60041 "field acceptance tests to determine the hydraulic performance of hydraulic turbines, storage pumps and pump turbines". The ...
Manufactured by:Etaeval GmbH based inHorw, SWITZERLAND
etaeval carries out temporarily installed acoustic discharge measurements or will be pleased to advise you on installations for continuous ...
Manufactured by:Etaeval GmbH based inHorw, SWITZERLAND
Transient operation is inherent to the operation of hydroelectric power plants and water supply systems, since machines are started, stopped or work at time varying operating conditions. Water hammer and/or mass oscillations may occur. Due to the elasticity of the pipes, the compressibility of the water and of air bubbles, pressures pulsations propagate in closed conduits through the water at a ...
Manufactured by:Etaeval GmbH based inHorw, SWITZERLAND
Thermodynamic efficiency measurements are performed to determine the absolute efficiency of hydraulic machines. The procedure for such a measurement is described in detail within the IEC (International Electrotechnical Commission) standard 60041 "field acceptance tests to determine the hydraulic performance of hydraulic turbines, storage pumps and pump turbines". This standard is used worldwide ...
Manufactured by:Etaeval GmbH based inHorw, SWITZERLAND
We employ numerical flow simulations for determination of the uncertainty of the flow rate integration for ultrasonic flow meters, when the installation is exposed to an upstream flow distortion and a resulting nonuniform velocity distribution ...
Manufactured by:Etaeval GmbH based inHorw, SWITZERLAND
Transient operation is inherent to the operation of hydroelectric power plants and water supply systems, since machines are started, stopped or work at time varying operating ...