energy harvestig from pressure

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1)Energy harvesting from pressure by Piezo electric crystals

ENERGY HARVESTING

Nowadays, most of the research in the energy field is to develop sources of energy for future. With the ever increasing and demanding energy needs, unearthing and exploiting more and more energy sources has become a need of the day. With oil resources being over tapped and eventually bound to end, it is time to find renewable sources of energy for the future. Energy harvesting has been a topic of discussion and research since three decades. Energy harvesting is the process by which energy is derived from external sources and utilized to drive the machines directly, or the energy is captured and stored for future use.Some traditional energy harvesting schemes are solar farms, wind farms, tidal energy utilizing farms, geothermal energy farms and many more. With the advancement of technology, utilization of these

sources has increased by leaps and bounds.     

Types of Energy Harvesting Schemes

Type of Energy Harvesting	Energy Source	Solution	Ultimate Goal
Macro	Renewable sources like solar, wind, tidal etc.	Energy Management solutions	Reduce oil dependency
Micro	Small scale sources like vibration, motion, heat etc.	Ultra-low power solutions	Driving low energy consuming devices

                1 Objective

The main feature in this project is to examine the use of alternative source for power generation. The concept of energy scavenging is the point that will affect the ability of the generator developed. For the project accomplishment, there are two main objectives that will cover the entire project tasks:

·         To start a new design of a piezoelectric based power generation mechanism for power generation.

·         To evaluate the performance of the new piezoelectric based power generation tool developed.

1    FUNDAMENTAL OF PIEZOELECTRICITY

Piezoelectricity concept could be advantageous in energy harvesting. This technique is quite useful because it uses ambient energy for power generation. It is an alternative method to generate power that contributes to the implementation of minimizing the using of natural resources.

Conclusion

·         When the pressure is applied on the face of the device, there is a deformation of charge carriers inside the crystals which will result in Electric field, and therefore an Electric potential is developed across the face, and this electric potential is used to produce electric current which is used to glow the lights, LEDs, and further this we can charge the battery of our mobile or cell phones by connecting the device to the cell phone via some USB device.

·         This can be used for many applications in rural areas where power availability is less or totally absence. As India is a developing country where energy management is a big challenge for huge population. By using this project we can drive both AC as well as DC loads according to the force we applied on the piezoelectric material.

Future Scope

The proposed work portrays the concept of Piezoelectric Energy Harvesting and the results obtained after the implementation are very encouraging. Future work of the proposed idea encompasses further amplification of the crystal output to a greater extent. Future lies in the inclusion of advanced material used to design the piezoelectric crystal which further amplifies the crystal output in terms of voltage 

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