Electricity Generation from Speed Breaker by Air Compression Method using Wells Turbine

The whole world is now running after green energy. The utilization of energy is an indication for the growth of a nation. Maximum consumed energy come from conventional energy sources like gas, oil, coal etc. which are limited. It is di cult to meet up the demand with existing conventional energy resource. So, green energy or alternate energy can be the best way to meet increased demand today. Electricity can be produced from the speed breaker which is considered an alternate energy source of power generation. In our country, speed breaker is about 10 cm in height. Thousands of vehicles run over the road everyday which provide huge pressure on the road. A system could be developed to have about 10 cm de ection with huge downward pressure energy which would be used to rotate wells turbine by using compressed air. Enormous study had been carried out to improve power generation from speed breaker by using rack & pinion method and compressed air. But none of the study is carried out by using wells turbine from compressed air. In our research, a small model has been constructed. From the experimental data, it is seen that an average 500 N Load can give an output of 1V voltage / 0.7A current / 1.71 kWh power.


Introduction
Electricity is a basic part of nature and it is one of the most widely used forms of energy across the globe [16]. Per capita energy consumption in USA is 9000 kWh (Kilo Watt hour) and in India, it is 1200 kWh [1]. MW [2]. At present, 59% of total electricity generation in Bangladesh is being received from government power plant and 41% of net generation of the country is being received from rental and Independent power plant [3]. Bangladesh South African people has implemented alternative power source for lighting up small villages due to electricity crisis [4]. Electricity demand in Bangladesh includes agriculture, commercial service, industry, and domestic service sectors [5]. Recent

Materials
Speed breaker of vibrating type has been taken for this study. When vehicles will cross the speed breaker ( Fig. 1), it will be compressed and af-

Spring
The researchers of this study have used 4 pieces of oil tempered, hardened, creep resistive, square grounded spring which have 6.5 number of active coils. Inner diameter is 60 mm and height are 193 mm and coil diameter is 5 mm which can easily mesh with lower pipe. Spring is used to return the structure (Fig. 4).

3) Spring
The researchers of this study have used 4 pieces of oil tempered, hardened, creep resistive, square grounded spring which have 6.5 number of active coils. Inner diameter is 60 mm and height are 193 mm and coil diameter is 5 mm which can easily mesh with lower pipe. Spring is used to return the structure (Fig. 4).

Shallow machine liner or compression chamber
Shallow machine liner (Fig. 5 & 6) is an assembly of piston and cylinder. It is made of cast iron. The liner is 216 mm in height and 120 mm in diameter. A connecting rod is connected to the piston and the piston can move up and down in the cylinder while force is exerted on the connecting rod. Thus air will be compressed. Piston and cylinder assembly was totally air tight. in the cylinder while force is exerted on the connecting rod. Thus air will be compressed. Piston and cylinder assembly was totally air tight.  Table and Lower Table. Fig. 6: Shallow machine liner with four supporting tubes.

Wells turbine
Wells turbine is a unidirectional turbine where fluid flow can be in both directions. wells turbine has been chosen which is similar to NACA 0015 airfoil because for both directional flow of fluid this turbine will rotate only in same direction. Our designed wells turbine was 100 mm in diameter with five uniform wooden blades. Wooden blades had used because of its' light weight,  Table and Lower Ta-ble.
. 5: Spring Setup with Upper Table and Lower Table. . 6: Shallow machine liner with four supporting tubes.

.5. Wells turbine
Wells turbine is a unidirectional turbine where fluid flow can be in both directions. wells bine has been chosen which is similar to NACA 0015 airfoil because for both directional flow fluid this turbine will rotate only in same direction. Our designed wells turbine was 100 mm in meter with five uniform wooden blades. Wooden blades had used because of its' light weight, ve blades. This wells turbine will be mounted with the generator shaft. Rotation of wells turbine will rotate the generator shaft. In generator, magnetic ux will be cut and thus, power will be produced. and availability than any other material. For our researc optimum torque and suitable rotation. The inner circular 1.5 mm thickness which holds all five blades. This w generator shaft. Rotation of wells turbine will rotate the flux will be cut and thus, power will be produced. and availability than any other material. For our research, five blades were chosen for getting optimum torque and suitable rotation. The inner circular shaped body is 60 mm in diameter and 1.5 mm thickness which holds all five blades. This wells turbine will be mounted with the generator shaft. Rotation of wells turbine will rotate the generator shaft. In generator, magnetic flux will be cut and thus, power will be produced.  tor e's dynamo lighting set is used. In our country, it is much available because of its ower extraction device from small scale like is used in bi-cycle. Wells turbine is shaft. When the wells turbine rotates using the compressed air flowing over it, s also rotate. Thus, power is extracted.

rmer and Wheatstone bridge
former of 1: 12 turn is used to make AC voltage amplification to 12 volt which is the two terminals bi-cycle generator ( fig. 9). Further, a Wheatstone circuit is used make AC current to DC current. It will be used to charge the battery ( fig. 12). diodes of 0.7 Volt are used. rator cle's dynamo lighting set is used. In our country, it is much available because of its Power extraction device from small scale like is used in bi-cycle. Wells turbine is ts shaft. When the wells turbine rotates using the compressed air flowing over it, fts also rotate. Thus, power is extracted.
former and Wheatstone bridge nsformer of 1: 12 turn is used to make AC voltage amplification to 12 volt which is ith the two terminals bi-cycle generator ( fig. 9). Further, a Wheatstone circuit is used to make AC current to DC current. It will be used to charge the battery ( fig. 12). e diodes of 0.7 Volt are used.

7) Transformer and Wheatstone bridge
A transformer of 1: 12 turn is used to make AC voltage amplication to 12 volt which is connected with the two terminals bi-cycle generator ( Fig. 9). Further, a Wheatstone circuit is used as a rectier to make AC current to DC current (Fig. 11). It will be used to charge the battery (Fig. 12). Here, silicone diodes of 0.7 Volt are used.

Battery
A 12v battery of 10 Ah is used to store electrical energy which deliver pow is not available.

8) Battery
A 12v battery of 10 Ah is used to store electrical energy which deliver power when load is not available.

9) LED
A light-emitting diode (LED) is a two-lead semiconductor light source that resembles a basic p-n junction diode, except that an LED also emits light. When an LED's anode lead has a voltage, it is more positive than its' cathode lead for the LED's forward voltage drop at least, current ows. LED was used to check either there is current ow or not as well as power generation. The terminals of LED are connected with the two terminals of battery. (Fig. 12 and 13) 144 c 2020 Journal of Advanced Engineering and Computation (JAEC) VOLUME: 4 | ISSUE: 2 | 2020 | June 12v battery of 10 Ah is used to store electrical energy which deliver power when load ilable. : Battery.
D light-emitting diode (LED) is a two-lead semiconductor light source that resembles a junction diode, except that an LED also emits light. When an LED's anode lead has a t is more positive than its' cathode lead for the LED's forward voltage drop at least, ows. LED was used to check either there is current flow or not as well as power  https://create. arduino.cc/projecthub/rowan07/ make-a-simple-led-circuit-ce8308)

Fig. 14:
Block diagram of power generation.

Theoretical calculation (Approximate)
Pressure on curved dome attached on Upper

Average Eciency
It is calculated from all data from Fig. 15         From all graphs, it is clear that power is not linear as changing of RPM and load . From Fig. 13 and 14, it is seen that both RPM and load are increasing with the increase of power. From Fig. 15 and 16, it is also visible that RPM and load increase more sharply for frequency 2.6.

Conclusions
In the coming days, demand for electricity will be very high as it is increasing every day, speed breaker power generator will prove a great boom to the world in the Future [15]. This paper is a one-step way to explore the possibilities of energy from alternate green source. The speed breaker model is found to be useful in utilizing potential energy of vehicles (weight) which is lost on speed breakers. In our study, this model has been introduced on the basis of wells turbine. to produce electrical energy for the working of street light, lamppost where cost will be very low comparing other conventional energy and renewable energy as plywood, wooden blades and plastic materials have been used. Investment cost will be low for using available material. This generated power can be amplied and stored by using dierent electric devices. By adopting this arrangement, we can satisfy the future demands to some extent [14].