Waste Heat recovery plant (WHRP) Used to convert waste heat into electricity It increases overall efficiency of Cement Plant Its maximum capacity is 16.5MW Worked on Rankine Cycle model

AC Synchronous Generator Worked on Faradays Law of Electromagnetic Induction A moving conductor cutting the lines of force (flux) of a constant magneticField has a voltage induced in it.

A changing magnetic flux inside a loop made from a conductor materialWill induce a voltage in the loop.

Consisted of Rotor(moving part) Stator(Stationary part)Windings Field WindingField Windings are used to produce magnetic field. Armature WindingArmature Windings are where EMF is induced.

Generator which we are using has two poles, and our required frequency is 50HzSo using above formula we can calculate desired RPMN= (120/2)*50=3000RPMSo prime mover must maintain 3000RPM for satisfactory operation Excitation SystemAs generator generates electricity when a conductor moved inside a magnetic field, so we need magnetic field which can be either provided by permanent magnet or by difference in voltage. In large generators it is not feasible to use permanent magnets, so we need some kind of excitation system.There are three types of excitation methods available DC Excitation Static Excitation Brushless ExcitationIn WHRP Brushless Excitation system is used with a pilot exciter. Brushless Excitation System In this system the armature of the exciter is on the rotor shaft itself. The DC output of this armature, after rectification by solid-state devices, goes to the rotor coils. Since the armature and rotor are on the same rotating shaft, this eliminates the need for slip rings. Hence it reduces maintenance and operational requirements and thus improving reliability.

Boiler