People often do not interact with their neighbors and this is harming communities. What are the possible causes and solutions?

ABSTRACT: Due to the large demand for electric

energy

tied to environmental concerns,

wind

energy

is able to provide a clean and renewable resource. To generate electricity, the

wind

turbine

converts the air masses into mechanical

energy

and

this

process

is carried by the

wind

blades

.

Wind

energy

is considered

a

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clean

energy

, because the generation

process

does not involve combustion and,

consequently

, it does not emit polluting or toxic gases.

However

, there is still an unsolved challenge regarding the disposition of the

wind

blades

after the life cycle is fulfilled. INTRODUCTION

Wind

energy

is a type of renewable

energy

obtained through the

wind

- more precisely, through the collection and use of the kinetic

energy

of the

wind

, which is converted into mechanical

energy

,

thus

generating electricity.

This

process

is possible by

wind

turbines, which are a type of

generator

and through their

blades

Add a comma

,blades

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this

entire

process

is carried out. When

wind

flows across the

blade

, the air pressure on one side of the

blade

decreases. The difference in air pressure across the two sides of the

blade

creates both lift and drag. The force of the lift is stronger than the drag and

this

causes the rotor to spin. The rotor connects to the

generator

, either directly (if it's a direct drive

turbine

) or through a shaft and a series of gears (a gearbox) that speed up the rotation and allow for a physically smaller

generator

.

This

translation of aerodynamic force to

rotation

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the rotation

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of a

generator

creates electricity (KALE, 2009). Most

wind

generator

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generators

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have three

wind

blades

, which can be longer than 60 meters and can

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weigh

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weight

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weigh

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more than 9000 kilos. The main raw materials of the

blades

are glass or carbon

fiber

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fibre

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and resin, which represents the majority of its composition. These composite materials have the advantage of making rotor

blades

lighter and more robust but they are proving complicated to recycle. While some components of the

wind

turbine

are recyclable,

such

as the metal parts in the tower and gearbox (Martínezet, 2009; Schleisner, 2000), recycling the

blades

has been difficult due primarily to the thermoset binder used in the synthetic composite. BACKGROUND According to the Guidance Decommissioning of Onshore

Wind

Turbines (2020), today 34,000 turbines are 15

years

or older, representing 36

GW

of onshore

wind

capacity. Out of the 36

GW

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,GW

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some 9

GW

are 20-24

years

old and around 1

GW

are 25

years

or older.

This

creates a big market for decommissioning of onshore

wind

farms over the

next

decade.

Turbine

blades

are set to account for 43 million tons of waste in 2050, according to a 2017 University of Cambridge study. Most

blades

end up in landfills

,

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because they are hard to recycle. Despite the potentially large costs, logistical difficulties and environmental impacts, lifetime extension, refurbishment, repowering and decommissioning phases of a project have been given little attention to date.

This

is currently changing due to the rising concerns of developers about their

aging

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ageing

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assets

,

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and is becoming an important matter as end-of-life strategies are a significant part of any project and require consideration from an early design stage. If

this

is not done, impacts can be severe, and costs can be higher than expected (Eva, 2019). The

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lifetime

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life time

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lifetime

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of a project is estimated to be between 20-25

years

, but as it can be seen, there is still too much uncertainty in the sector as only four of them have reached

this

stage. AIMS The best disposal for the

blades

once reaches the end of life-cycle needs to take into account technical, economic and legal aspects. Many paths can be considered to solve

this

issue, from prevention to minimize the problem until possible alternatives of recycling and re-use. 1. Prevention - What can be done to reduce

blade

mass in less material? 2. Re-use - Is it possible

other

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for other

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industries (e.g. construction, architecture) to use the material? 3. Recycle - Convert

blade

waste into a new product/material with a different functional use Nowadays, most of the

blades

are disposed

at

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of at

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the landfill

a landfill

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landfill

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landfills

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or are incinerated.

However

, it is not environmentally friendly if emits greenhouse gases or produces massive waste. The aim of

this

research is to analyze the viability of the listed alternatives, once efforts must be attempted on making it as sustainable as possible.