Finally, it is obvious that in a motor we want as much as possible of the electrical input power to be converted to mechanical output power, and as little as possible to be converted to heat in the conductor. Since the output power is EI, and the heat loss is I2R, we see that ide...
What type of electrical energy is produced by batteries? Which type of energy conversion occurs in an electric motor? What are two types of waves that transfer energy from one place to another? In power plants, generators convert mechanical energy into what?
What is ecological power? What type of mechanical wave does a tuning fork produce? Define simple machine What is stress in biomechanics? What is ecological engineering? What is altered biomechanics? What is the role of biomechanics in sports? What are gross motor skills? What is the main diffe...
A 120-V motor has mechanical power output of 2.50 hp. It is 90.0% efficient in converting power that it takes in by electrical transmission into mechanical power. (a) Find the current in the motor. (b) Find the energy delivered to the motor...
In this paper, a high speed slotted solid-rotor induction motor (SSRIM) with rated power of 15kW and rated speed of 120krpm is studied, and its electromagnetic performance and rotor mechanical structure are optimized. First, according to the empirical formula of motor design, the volume size ...
Thermo-statistical study of sustainable refrigeration system for stack flow heat recovery of combined gas turbine-steam turbine power generation Kaushalendra Kumar Dubey, R.S. Mishra Pages 74-83 select article A review on effect of friction stir processing on the welded joints ...
5. Upper plate automatic protection device, prevent accident like fall plate caused by unexpected expired and power failure; 6. Use independent inverter motor drive, make the upper plate, lower plate, center wheel and the speed reach the best ratio, and make the loose pully re...
From the system of Park’s equations, [5], as well as from formula (2) it follows that the coupling between the electric and the mechanical system is non-linear in character, particularly for significantly varying motor rotational speedΩ(t), which leads to very complicated analytical descripti...
Suppose you have a motor with a power factor significantly less than 1. Explain why it would be better to improve the power factor as a method of improving the motor's output, rather than to increase the voltage input. In an Atwood machine, why do the tensions...