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PREPARED BY-
         JASHOBANTI BISWAL
       REGDN. NO-0901106119
ELECTRICAL ENGINEEERING DEPARTMENT
 Introduction
 Different mechanisms
 Spring coil mechanism
 Rack pinion mechanism
 MERITS and demerit
 scope and uses
 CONCLUSION
A large  amount of energy is wasted
 at the speed breakers through
 friction , every time a vehicle passes
 over it.
So electricity can be generated using
 the vehicle weight (potential energy)
 as input.
So, this is a small step to try to
 improve this situation.
   SPRING COIL MECHANISM

   RACK- PINION MECHANISM

   CRANK-SHAFT MECHANISM

   ROLLER MECHANISM
 OUTOF THE ABOVE METHODS
 CRANK-SHAFT MECHANISM & ROLLER
  MECHANISM ARE NOT USED BECAUSE OF
 THE DEMERITS RELATED TO THESE METHODS.

 SOONLY SPRING COIL MECHANISM &
 RACK- PINION MECHANISM ARE
 DISCUSSED.
Working principle
 Conversion of mechanical
energy to pneumatic energy
   which is converted to
     electical energy
 Here  we are making the speed breaker of
  vibrating type, when a vehicle crosses the
  speed breaker, it gets pressed and then it
  gets back to its original position.
 Dimensions of speed breaker:-
                        Height        : 0.2m
                        Width         : 0.4m
                        Length        : 4m
•The material
used in construction
of speed breakers is
steel.
•The shape of speed
breaker is
trapezoidal .
• Height: 0.35m
• Length : 4m
• Width :0.45m
• The bottom layer of
the trench is filled
with concrete or with
wooden plates of
0.5m.
•This is for cushion
effect.
   The actual height of spring is 0.3m before loading.
 The  deflection of the spring is given by
 δ = 64 w *n*N*R^3 /(Gd^4)
   where
   δ-deflection (in our case maximum δ =0.1m)
   w=designed load
   R= mean diameter of coil
   d =diameter of wire
   n=no of spring turns
   G= Modulus of rigidity = 8*10^4 N/mm2
   N= No. of springs
 The no of turns in the spring to get the deflection of
  0.1m is given by
 n= δGd^4/(64 w*N*R^3)
 Vehicle   approaching the speed breaker
   Maximum load on the speed
    breaker is when the
  vehicle is on the middle
  of the speed breaker.
 When the load is on the
  speed breaker, the
  volume of air compressed
  by it is found by,
  Volume of compressed air
  = Volume of air in base –
  Volume of spring
   = (x m^3)/s
 When  the pressure
 in the FRL unit
 exceeds the
 defined level the
 valve opens and
 the pressurized air
 is given to the
 nozzle.
 The  diameter of the inlet
  of nozzle must be greater
  than outlet.
 Here the pressure energy
  is converted to kinetic
  energy i.e pressure→high
  velocity.
 This high velocity
  compressd air when hits
  the impeller ,makes it to
  rotate.
CONSISTS -
 Casing
 Runner and buckets


CASING-
 This is provided to safeguard device against
  accidents.
  It consists of a
  circular disc on the
  periphery of which
  have number of
  buckets evenly spaced
  are fixed. Each bucket
  is divided in to 2
  symmetrical parts by
  a dividing wall is know
  as splitter.
 When the air strikes
  the runner ,it rotates
  & continues rotation
  due to inertia.
 An electrical generator is a machine which
  converts mechanical energy in to electrical
  energy.
 The output of the alternator is used to light
  the street lights & is rectified & stored in
  batteries.
PRINCIPLE
 MECHANICAL ENERGY IS
CONVERTED TO ELECTRICAL
       ENERGY
   The various machine elements used in the
    construction of power hump are

   RACK-PINION

   SPROCKETS

   GEARS

   FLY WHEEL

   SHAFT

   ELECTRIC GENERATOR
Transfers rotary
motion between
two shafts
The input gear
transfers power
to the output
gear.
This is used to regulate the energy and
 maintain the energy at an uniform
 level so that the shaft rotate at an
 uniform r.p.m
Power generation from speed breakers
 Herethe reciprocating motion of the speed-
 breaker is converted into rotary motion using
 the rack and pinion arrangement.

 Rackand pinion gears normally change rotary
 motion into linear motion, but sometimes we
 use them to change linear motion into rotary
 motion.
 The axis of the pinion is coupled with the sprocket
  arrangement.
 The axis of the smaller sprocket is coupled to a
  gear arrangement.
 Finally the gear arrangement is coupled with the
  generator
Power generation from speed breakers
Speed of vehicle   Voltage generated
    (kmhr)              (volts)
     10                7.93
     20                 6.28
     30                 5.03
     40                 4.66
     50                 3.03
Load(kgs)        Voltage generated(V)

 60(man load)      8.33
 130
                   9.45
 170
                   10.22
 200
                   11.23
 270
                   11.81
merits                     demerits
 Low Budget electricity       We have to check
  production                    mechanism from time to
 Less floor area               time
 No obstruction to traffic    It can get rusted in rainy
                                season
 Suitable at parking of
  multiplexes, malls, toll     May not work with light
  booths, signals, etc.         weight vehicles
                               Less quantity
 This mechanism is very economical and easy
  to install.
 Two protocols of this type of speed breakers
  are developed in India .not practically
  implemented till date.
 Practically implemented in New Jersy,China
  and Indonesia.
 Lots of researches and investgations are
  going on to practically utilise this technique

.
 The  existing source of energy such as coal, oil etc
  may not be adequate to meet the ever increasing
  energy demands. These conventional sources of
  energy are also depleting and may be exhausted.
 These are some non-conventional methods of
  producing energy. This project is a one step to path
  of exploring the possibilities of energy from
  several non-conventional energy sources.
THANK YOU

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Power generation from speed breakers

  • 1. PREPARED BY- JASHOBANTI BISWAL REGDN. NO-0901106119 ELECTRICAL ENGINEEERING DEPARTMENT
  • 2.  Introduction  Different mechanisms  Spring coil mechanism  Rack pinion mechanism  MERITS and demerit  scope and uses  CONCLUSION
  • 3. A large amount of energy is wasted at the speed breakers through friction , every time a vehicle passes over it. So electricity can be generated using the vehicle weight (potential energy) as input. So, this is a small step to try to improve this situation.
  • 4. SPRING COIL MECHANISM  RACK- PINION MECHANISM  CRANK-SHAFT MECHANISM  ROLLER MECHANISM
  • 5.  OUTOF THE ABOVE METHODS CRANK-SHAFT MECHANISM & ROLLER MECHANISM ARE NOT USED BECAUSE OF THE DEMERITS RELATED TO THESE METHODS.  SOONLY SPRING COIL MECHANISM & RACK- PINION MECHANISM ARE DISCUSSED.
  • 6. Working principle Conversion of mechanical energy to pneumatic energy which is converted to electical energy
  • 7.  Here we are making the speed breaker of vibrating type, when a vehicle crosses the speed breaker, it gets pressed and then it gets back to its original position.  Dimensions of speed breaker:- Height : 0.2m Width : 0.4m Length : 4m
  • 8. •The material used in construction of speed breakers is steel. •The shape of speed breaker is trapezoidal .
  • 9. • Height: 0.35m • Length : 4m • Width :0.45m • The bottom layer of the trench is filled with concrete or with wooden plates of 0.5m. •This is for cushion effect.
  • 10. The actual height of spring is 0.3m before loading.  The deflection of the spring is given by  δ = 64 w *n*N*R^3 /(Gd^4)  where  δ-deflection (in our case maximum δ =0.1m)  w=designed load  R= mean diameter of coil  d =diameter of wire  n=no of spring turns  G= Modulus of rigidity = 8*10^4 N/mm2  N= No. of springs  The no of turns in the spring to get the deflection of 0.1m is given by  n= δGd^4/(64 w*N*R^3)
  • 11.  Vehicle approaching the speed breaker
  • 12. Maximum load on the speed breaker is when the vehicle is on the middle of the speed breaker.  When the load is on the speed breaker, the volume of air compressed by it is found by, Volume of compressed air = Volume of air in base – Volume of spring = (x m^3)/s
  • 13.  When the pressure in the FRL unit exceeds the defined level the valve opens and the pressurized air is given to the nozzle.
  • 14.  The diameter of the inlet of nozzle must be greater than outlet.  Here the pressure energy is converted to kinetic energy i.e pressure→high velocity.  This high velocity compressd air when hits the impeller ,makes it to rotate.
  • 15. CONSISTS -  Casing  Runner and buckets CASING-  This is provided to safeguard device against accidents.
  • 16.  It consists of a circular disc on the periphery of which have number of buckets evenly spaced are fixed. Each bucket is divided in to 2 symmetrical parts by a dividing wall is know as splitter.  When the air strikes the runner ,it rotates & continues rotation due to inertia.
  • 17.  An electrical generator is a machine which converts mechanical energy in to electrical energy.  The output of the alternator is used to light the street lights & is rectified & stored in batteries.
  • 18. PRINCIPLE MECHANICAL ENERGY IS CONVERTED TO ELECTRICAL ENERGY
  • 19. The various machine elements used in the construction of power hump are  RACK-PINION  SPROCKETS  GEARS  FLY WHEEL  SHAFT  ELECTRIC GENERATOR
  • 21. The input gear transfers power to the output gear.
  • 22. This is used to regulate the energy and maintain the energy at an uniform level so that the shaft rotate at an uniform r.p.m
  • 24.  Herethe reciprocating motion of the speed- breaker is converted into rotary motion using the rack and pinion arrangement.  Rackand pinion gears normally change rotary motion into linear motion, but sometimes we use them to change linear motion into rotary motion.
  • 25.  The axis of the pinion is coupled with the sprocket arrangement.  The axis of the smaller sprocket is coupled to a gear arrangement.  Finally the gear arrangement is coupled with the generator
  • 27. Speed of vehicle Voltage generated (kmhr) (volts)  10 7.93  20  6.28  30  5.03  40  4.66  50  3.03
  • 28. Load(kgs) Voltage generated(V)  60(man load)  8.33  130  9.45  170  10.22  200  11.23  270  11.81
  • 29. merits demerits  Low Budget electricity  We have to check production mechanism from time to  Less floor area time  No obstruction to traffic  It can get rusted in rainy season  Suitable at parking of multiplexes, malls, toll  May not work with light booths, signals, etc. weight vehicles  Less quantity
  • 30.  This mechanism is very economical and easy to install.  Two protocols of this type of speed breakers are developed in India .not practically implemented till date.  Practically implemented in New Jersy,China and Indonesia.  Lots of researches and investgations are going on to practically utilise this technique .
  • 31.  The existing source of energy such as coal, oil etc may not be adequate to meet the ever increasing energy demands. These conventional sources of energy are also depleting and may be exhausted.  These are some non-conventional methods of producing energy. This project is a one step to path of exploring the possibilities of energy from several non-conventional energy sources.