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Author Iliev, Viktor ♦ Popovski, Predrag ♦ Markov, Zoran
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Hydroelectric Power Plant ♦ Transient Phenomenon ♦ Water Hammer ♦ Transient Phenomenon Analysis ♦ Off-design Operating Condition ♦ Numerical Simulation ♦ Rotational Speed ♦ Influential Criterion ♦ Control Value ♦ Minimum Closing Time ♦ Francis Turbine ♦ Different Configuration ♦ Hydraulic System ♦ Off-design Condition ♦ Experimental Investigation ♦ Guide Vane ♦ Turbine Draft Tube Pressure Pulsation ♦ Load Rejection Emergency ♦ Numerical Model ♦ Onedimensional Approach ♦ Surge Tank ♦ Key Word ♦ Draft Tube ♦ Measurement Data
Abstract The numerical and experimental investigation of the transient phenomena in hydroelectric power plants (HPPs) during offdesign operating conditions is presented in this paper. Modeling of pipes, valves, surge tanks, Francis turbine and its draft tube based on onedimensional approach is performed. Numerical simulation of transient phenomena is performed for different configuration of hydroelectric power plant at off-design conditions such as load rejection/emergency shut-down. Also, analysis of transient phenomena, such as increase of the rotational speed (runaway) of the units, increase of the pressure (head) in the hydraulic system (water hammer) and turbine draft tube pressure pulsations is calculated. Finally, numerical model of hydroelectric power plant, validated with existing measurements data, is used for investigation of influential criteria on HPP’s guaranteed control values (allowed values of runaway, water hammer and minimum closing time of the guide vanes). Key words: hydroelectric power plant, offdesign, transient phenomena, runaway, water hammer, numerical simulation. I.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study