The sound radiation characteristics of a semi-hermetic twin-screw compressor were studied while operating under controlled laboratory conditions at the Ray W. Herrick Laboratories of Purdue University. A fully-condensing load stand was designed to allow the 70 ton chiller system to be operated at the three standard loading capacities of the compressor. The load stand was operator controlled and...

The purpose of the study presented in article was to develop a method for formation digital twins distributed generation plants operating as part cyber–physical power supply systems. A forming twin system automatic regulation voltage and rotor speed synchronous generator is considered. structure form multiply connected model using experimental data. possibility fuzzy inference system, artificia...

In order to harness the kinetic energy of marine currents, we propose a novel ocean-current turbine with a horizontal axis. The turbine can be moored to the seabed and function similarly to kites in a water flow. To operate such turbines in a marine current, the resulting rotor torque needs to be canceled. Therefore, the proposed turbine is designed with a float at its top and a counterweight a...

The paper is devoted to solving the problem of building a control system for special electromechanical energy converter, which due inverted structure stator and presence solid hollow rotor made ferromagnetic steel. task ensure speed rotor's run-up given value in certain time then maintain it regardless load fluctuations. was solved implementation Field Oriented Control (FOC) vector with current...

An experimental study was performed to examine the wake characteristics and aeromechanic performance of an innovative twin-rotor wind turbine (TRWT) in comparison with those of a conventional single-rotor wind turbine (SRWT). The comparative study was conducted in a large-scale Aerodynamic/Atmospheric Boundary Layer (AABL) wind tunnel with the TRWT and SRWT model sited in simulated atmospheric ...