Generation of Electricity from Fans MD Saquib Gadkari, Khemchand Kolte, Mrunal Jasani, Akash Vichare, Beatrice.S Computer Engineering Department, Xavier Institute of Engineering, Mahim, Mumbai, India. Abstract—Fans are the most used items in India despite the widespread availability of Cooler’s and air conditioners. Since the initial capital cost of solar systems is still quite high , when it comes to generate power for a domestic use and energy saving and energy generating is a major issue for mankind .This paper presents method of generating power by a ceiling fan . The generated power can be either used or can be stored in a battery for powering some other devices. Keywords—Alternator; dynamo; Electromagnetism. I. INTRODUCTION World is a storehouse of energy. We all know that energy can neither be created nor be destroyed but can be transformed from one form to another. But we are wasting resources that can produce energy as if they are limitless. If we can renew and Reuse the energy we waste, it would help in some way to the problem of scarcity of energy, which is the major threat of present world. By using the concept of wind turbines Wind-generated electricity can be used for battery charging and for connection with the power grid. Beside every fan there is a tube light by a mechanism inside the fans motor or a belt that rotates and light up the bulb or store the energy in a battery which could be used to power up other machines. . II. ELECTRICITY GENERATION A motor converts electrical energy into mechanical energy of rotation. Some motors can be operated as generators to convert mechanical energy into electrical energy. 1. Dynamo - A device that makes direct current electric power using electromagnetism. It is also known as a generator; however the term generator normally refers to an "alternator" which creates AC (Alternative Current) power. 2. Generator - normally this term is used to describe an alternator which creates AC power using electromagnetism. 3. Stator - Fluctuating polarity creates a rotating magnetic field in the stator. The field crosses a 0.3.mm gap to induce a current in laminations in the rotor, which spins around the stationary stator. 4. Rotor -The angle at which the stator faces the rotor, the physical distance between the two, and the geometry of slots carved into each set of laminations combine to create two out-of-phase magnetic fields. The rotor spins because it repels the rotating magnetic field induced by the stator. Generators, Dynamos, and Batteries are the three tools necessary to create/store substantial amounts of electricity for human use. III. ACTUAL CONCEPT Wind turbine motor is used to generate electricity. Permanent magnet motor can be used as a generator for battery charging. The spinning shaft turns the electromagnets that are surrounded by heavy coils of copper wire inside generators. This creates a magnetic field, which causes the electrons in the copper wire to move from atom to atom, creating electricity. The voltage produced by a generator depends upon the number of turns in its coils, the strength of the magnet, and the rate at which the magnet turns. The more turns in the coils, the more voltage is produced. AC dynamo which is used to generate current as shown in the Fig. II, it will be interconnected with a ceiling fan through a mechanism in which the rotating ceiling fan motor will rotate dynamo’s shaft. It will be connected in such a way that as the number of rotations of ceiling fan increases the rotation of the shaft of AC dynamo increases, by the mean time the voltage is also generated. The voltage generated will be given to the charging circuit which will be converted to dc .Then it will be given to the 1 volt battery and by using an inverter circuit and a step up transformer this 1 volt may be converted to around 250 volts and used for other external purpose. IV. CHARGING CIRCUIT The Fig I show’s a dynamo attached to a fan’s motor for power generation [1]. The dynamo is attached to the fan’s motor in such a way that it results in the rotational motion of the dynamo’s shaft. This motion causes the dynamo to produce electrical energy. The dynamo output is given to the rectifier circuit and then to the voltage regulator and hence the dc regulated output is used for charging *3yNiMH (nickel metal hydride) Battery. MD Saquib Gadkari et al, / (IJCSIT) International Journal of Computer Science and Information Technologies, Vol. 5 (3) , 2014, 3294 - 3297 3294