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STAIRCASE ELECTRICITY GENERATION MECHANISM

Added by SULABH kulshrestha at 2007-09-18


Sertificate Sertificate Text

 ELECTRICITY FROM STEPS-WALK AND GENERATE 

Aim:  To make a staircase system, which will generate electricity when people walk on it, that can be attached to any type of assembly, which requires steps. Ex. Fob, platform, etc.

 

Rationale: The Staircase electricity generator is specially planned to design and fabricate the conversion unit for utilizing the available unconventional energy source. That is tremendously available energy in low intensity with ample quantity can be utilized. This machine converts reciprocating motion in to rotary motion. The rotational power is stored in flywheel & flywheel rotate alternator that generate electricity.

 

Background:  Staircase electricity generation as such is not a new concept. There were many attempts in the past using pneumatics, piezoelectric materials, etc. but all of them proved very costly and were not practically feasible in day-to-day real life .The persons, which are climbing or getting down the staircase are applying the impact force or thrust on the spring loaded stair case steps. This impact pressure energy can be utilized to operate the energy flywheel through uni-directional ratchet arrangement using chain and sprocket wheel drive. The flywheel, which stores the energy and utilizes it for continuous rotation of the generator operating pulley and belt transmission system.

   This source of power can be used at the station building, platform and waiting rooms. Also by accumulating this low intensity electricity in Batteries, it can be supplied to the commercial complexes or shopping complexes near by the railway station, big shopping Malls or in Big villages or in towns where there is scarcity of electric supply.

 

Detailed explanation: It consists of three steps, as the steps of stair case unit. All the steps are coupled to the big size sprocket wheel, which in turn is coupled to the small sprocket wheel through the chain drive. The small sprocket wheel in turn is coupled to the ratchet wheel, which allows only the uni-directional rotation of the ratchet sleeve shaft. Similarly all the remaining two big sprocket wheels are coupled to the same single shaft through the separate chain drive individually.

  

                    When any person is stepping on the individual step, then that particular sprocket wheel pair rotates the ratchet wheel and thus the main shaft rotates at that instant. Thus the summation of the total rotational energy accumulation takes place in a single main shaft. The single main shaft is installed with the flywheel, which keeps on rotating with high velocity. The flywheel using the belt drive being coupled with the generator pulley rotates the generator field rotor and the emf is generated in the stator winding. The bulb coupled to the stator winding glows up as a indication of the generation of the Un-conventional energy.   

                                                                                                                                                                                                                                                                         Such type of multiple chain and sprocket drive is installed on the each and every individual step to couple that particular step with the common shaft. The common shaft is installed with the freewheel which is also called as unidirectional ratchet, which allows only unidirectional motion of the chain drive when the person is stepping on the step. While retaining of the step the ratchet will rotate as a free wheel. The summation of all the rotational energy will keep on adding to have collective rotation of the main or common shaft. The main shaft is coupled with the flywheel with the help of a round cross sectional leather belt. The flywheel stores energy during stepping condition and keeps on uniform rotation. The flywheel shaft is coupled with the generator to generate the power. This power can be stored in the lead acid battery set and can be reutilized for other domestic as well as commercial purposes as per the need of the customer.              

Conclusions: The project is developed keeping in mind the idea of generating electricity from non-conventional means, which is free from pollution and can be used directly in real life, i.e. it is not just a concept but a future.

   BUDGET 

A)           RAW MATERIAL & STANDARD MATERIAL COST

 

SR NO	PART NAME	RATE	QTY	TOTAL
1	FRAME ANGEL25X25X5mm	35/ kg	30kg	1050
2	SHAFT	55/kg	16	880
3	GEAR	8/teeth	209teeth	1672
4	PLUNGER ROD	-------	2	370
5	CYLINDER	800	1	800
6	PIPING	------	2 FEET	250
7	CHANNEL	35/ kg	1	35
8	SPRING	260	1	260
9	RACK	800	1	800
10	HANDEL	35/kg	5	175
11	NUT BOLT WASHER	--------	-------	250
12	PLY	----------	1	350
13	FREE WHEEL	100	1	100
14	WELDING ROD	5 /pcs	25	125
15	COLOUR	300/lit	0.75 lit	225
			TOTAL	7342/-

                                                                                                                      

B) DIRECT LABOUR COST

Sr.no.	Operation	Hours	Rate per hour	Amount
1.	Turning	10	150	1500
2.	Milling	2	150	300
3.	Drilling	7	100	700
4.	Welding	16	175	2800
5.	Grinding	3	60	180
6.	Tapping	3	40	120
7.	Cutting	8	40	320
8.	Gas cutting	8	50	400
9.	Assembly	2	100	200
10.	Painting	2	100	200
			TOTAL	6720/-

  INDIRECT COST Transportation cost = 500/- Coolant & lubricant  = 100/- Drawing cost                 = 500/- Project report cost        = 2000/- TOTAL INDIRECT COST = 2100/- TOTAL COST  Raw Material Cost + Std Parts Cost + Direct Labour Cost +Indirect Cost Total cost of project           = 7342 + 6720 +2100 Total cost of project           = 16162 /-   

Category: Science, Scientific Method, Science in Society

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